Please provide proof.
JF-17 Block III's proposed AESA Radar KLJ-7A
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i use google translator as my reading chinese not very good abut u guys can get some idea and i will post the link too so if some chinese bro want to translate the whole thing.
KLJ-7A radar to the target detection range than the KLJ-7 greatly improved, while tracking the ability to significantly increase the ability to significantly enhance the multi-target capabilities
And 14 is the airborne fire control radar is undisputed leader, J-10, J-11B, J -15 and "Fierce Dragon" and almost all domestic radar fighters are from the hands of the. There are foreign media speculation, is about to debut of the fourth generation of domestic fighter-20 radar system from the same hand.
From the type of radar number KLJ-7A is not difficult to see that the type of radar is also developed by the CLP Division 14 KLJ-7-type radar, a comprehensive upgrade model. KLJ-7-type radar is equipped with a type of foreign trade in light-duty fighter on a type of pulse Doppler radar. Compared with the latter, the KLJ-7A radar is the biggest change is the radar antenna by the mechanical scanning of the flat slot antenna with electronic scanning phased array antenna, an advanced airborne active phased array fire control radar .
Modern air combat, airborne radar as a combat aircraft to obtain battlefield situation, access to target intelligence, and even interfere with weapons to guide the opponent's key equipment, the aircraft was born is not the kind of icing on the cake even dispensable things, and to determine the fighter Performance, determine the fighters in air combat, especially over-the-horizon air combat in the decisive factor in the outcome. For the modern radar, the radar system is generally the main means of identifying radar performance, and technically speaking, unless a serious lack of design experience, in general, the same order of magnitude of the airborne radar, passive phased array Radar performance is better than the mechanical scanning radar, active phased array radar performance is better than passive phased array radar such a law is basically applicable.
Su-30MKI N001M fire control radar passive phased array system, mechanical and electronic scanning, although the radar looks much larger than the size of KLJ-7A, but its actual performance is less than the latter
This advantage, mainly reflected in the detection of distance, reliability, anti-jamming capability, and several other aspects. As an improved KLJ-7 radar product, KLJ-7A from the existing radar model to start, through the replacement of radar antenna and other means to upgrade, in the development of technology is relatively simple. Another important consideration of this improvement is likely to continue to upgrade the foreign trade light fighter, and therefore face in the product size, weight can not be too much break through the requirements of the prototype radar, especially by fighter head cone size limit, the new radar antenna The basic aperture can not be increased, under this premise, through the use of active phased array radar antenna, you can almost antenna aperture, to obtain a comprehensive performance index significantly improved. (Raytheon) AN / APG-63 (V) 2 and AN / APG-63 radars using active phased array radars have been developed with similar improvements in the use of the AN / APG-63 radar for F-15 fighters. APG-63 (V) 3 models, making its detection range than the early models increased nearly doubled.
According to the data disclosed by the exhibitors, the improved KLJ-7A radar's detection range in air-to-air mode is 65% higher than that of the prototype when the radar reflection area is 5 square meters. If the current mainstream light fighter Radar, such as Israel's EL / M-2032 radar comparison, KLJ-7A radar detection of similar targets in the distance to 70%; and Sweden PS-05 / A radar comparison, KLJ-7A detection range Far more than 40%; with the corresponding radar between the performance of light-made foreign trade fighter jets also suddenly from the use of KLJ-7 radar "between" into "take the lead."
In fact, this performance of KLJ-7A radar is not only in the same level of light fighter radar products in the advanced level, and even the face of third-generation heavy-duty fighter airborne radar also has considerable advantages. KLJ-7A radar detection range is not only much better than the early Su-27 series using the Zucker N001 radar, but also better than the Indian Air Force Su-30MKI fighters used Zucker N011M-type passive phased array radar. If taking into account the Sino-Russian twin in the detection range of the measurement process used in different standards, and the Chinese standard compared to the more stringent, the detection distance advantage in practical use than the two sides in the promotional materials The gap is more obvious.
US APG-83 radar, which is designed for Taiwan's F-16V conversion of low-cost AESA radar, the use of a large number of F-35's APG-81 technology. The radar antenna dimensions also exceed KLJ-7A, but the performance of the two close. Sino-US foreign trade radar technology is basically the same level, one can imagine, the main technical fighter radar on both sides of the same level
Considering that this is only a light for the use of light fighters in the main detection indicators can overwhelm a series of heavy aircraft airborne radar, combined with the aircraft radar size, antenna aperture and transmit power analysis, the radar The level of technology has been close to the US F-22 on the use of AN / APG-77 active phased array radar, in the world's advanced level, also shows Nanjing 14 airborne active phased array radar on the deep technical strength and China Aviation The rapid development of industry.
In addition to detection range, KLJ-7A radar has a good detection range. The KLJ-7A radar further enhances the ability to track multiple targets simultaneously, while increasing the number of tracking targets from 10 to 15 while simultaneously guiding four of the missile attacks. And has the possibility to further enhance the performance. Of course, for the application of light fighters in terms of radar, because the aircraft carrying a one-time medium-range air to air missiles up and down in the four, the current performance is basically enough.
According to the exhibition side, KLJ-7A radar mode of operation rich, including the general search, tracking air, ground and sea different nature of the target, guided missile attack, synthetic aperture radar, close combat.
The active phased array technology is to make KLJ-7A radar has many advantages of the predecessors: the radar is not only difficult to use traditional measures to implement interference, but can use the technical characteristics of the launch antenna electronic interference operations; , Because the radar signal transmission and reception is composed of a large number of independent transmitter / receiver unit, virtually improve the operational reliability of the radar, because a few of the transmitter / receiver unit failure does not affect the normal use of radar, Said that even if 30% of the transmitter / receiver unit fails, the radar system can still maintain the basic use. At the same time, the multi-unit structure of the phased array radar can make it perform many functions at the same time, so that the fighter can perform the functions of weather detection and mapping, or use the radar mode Alternating function, and executes a plurality of different contents successively in a short time.
Because KLJ-7A radar size is small, the power and the required cooling conditions are relatively limited, it is easy to apply to a variety of light fighter upgrade. Not only can not spend much of the price of the existing foreign trade fighter from the standard three generations of machines upgraded to three generations of semi-fighter aircraft, greatly enhance its future air combat conditions in the viability and combat effectiveness; also can be used as some of the old medium And even heavy second-generation machine upgrade options, in the case of little money, so that these old fighters have comparable to even more than ordinary three generations of aircraft over the horizon air combat capability and stronger on the sea, ground attack capability; FTC-2000 / 2000G this level of senior trainer and primary combat aircraft, but also theoretically equipped with the upgrade of the type of radar, as with the line of sight capability of light fighter aircraft (of course, this improvement will significantly reduce the aircraft's flight performance , In the cost-effective than still open to question). This highly flexible fit and economy, has given the KLJ-7A radar unprecedented broad market prospects.
According to the feedback from the foreign air force equipped with KLJ-7 radar, the performance of the KLJ-7 radar is quite satisfactory. It is foreseeable that if the foreign light fighter equipped with the KLJ-7A radar will join the air force sequence of these countries, So that the air power of these countries even more powerful, icing on the cake. KLJ-7A radar is also expected to become China Electronics Technology Group 14 Institute in the field of foreign trade a new "big kill device" for the Chinese radar and then write an important international reputation.
http://finance.ifeng.com/a/20161101/14976175_0.shtml
KLJ-7A radar to the target detection range than the KLJ-7 greatly improved, while tracking the ability to significantly increase the ability to significantly enhance the multi-target capabilities
And 14 is the airborne fire control radar is undisputed leader, J-10, J-11B, J -15 and "Fierce Dragon" and almost all domestic radar fighters are from the hands of the. There are foreign media speculation, is about to debut of the fourth generation of domestic fighter-20 radar system from the same hand.
From the type of radar number KLJ-7A is not difficult to see that the type of radar is also developed by the CLP Division 14 KLJ-7-type radar, a comprehensive upgrade model. KLJ-7-type radar is equipped with a type of foreign trade in light-duty fighter on a type of pulse Doppler radar. Compared with the latter, the KLJ-7A radar is the biggest change is the radar antenna by the mechanical scanning of the flat slot antenna with electronic scanning phased array antenna, an advanced airborne active phased array fire control radar .
Modern air combat, airborne radar as a combat aircraft to obtain battlefield situation, access to target intelligence, and even interfere with weapons to guide the opponent's key equipment, the aircraft was born is not the kind of icing on the cake even dispensable things, and to determine the fighter Performance, determine the fighters in air combat, especially over-the-horizon air combat in the decisive factor in the outcome. For the modern radar, the radar system is generally the main means of identifying radar performance, and technically speaking, unless a serious lack of design experience, in general, the same order of magnitude of the airborne radar, passive phased array Radar performance is better than the mechanical scanning radar, active phased array radar performance is better than passive phased array radar such a law is basically applicable.
Su-30MKI N001M fire control radar passive phased array system, mechanical and electronic scanning, although the radar looks much larger than the size of KLJ-7A, but its actual performance is less than the latter
This advantage, mainly reflected in the detection of distance, reliability, anti-jamming capability, and several other aspects. As an improved KLJ-7 radar product, KLJ-7A from the existing radar model to start, through the replacement of radar antenna and other means to upgrade, in the development of technology is relatively simple. Another important consideration of this improvement is likely to continue to upgrade the foreign trade light fighter, and therefore face in the product size, weight can not be too much break through the requirements of the prototype radar, especially by fighter head cone size limit, the new radar antenna The basic aperture can not be increased, under this premise, through the use of active phased array radar antenna, you can almost antenna aperture, to obtain a comprehensive performance index significantly improved. (Raytheon) AN / APG-63 (V) 2 and AN / APG-63 radars using active phased array radars have been developed with similar improvements in the use of the AN / APG-63 radar for F-15 fighters. APG-63 (V) 3 models, making its detection range than the early models increased nearly doubled.
According to the data disclosed by the exhibitors, the improved KLJ-7A radar's detection range in air-to-air mode is 65% higher than that of the prototype when the radar reflection area is 5 square meters. If the current mainstream light fighter Radar, such as Israel's EL / M-2032 radar comparison, KLJ-7A radar detection of similar targets in the distance to 70%; and Sweden PS-05 / A radar comparison, KLJ-7A detection range Far more than 40%; with the corresponding radar between the performance of light-made foreign trade fighter jets also suddenly from the use of KLJ-7 radar "between" into "take the lead."
In fact, this performance of KLJ-7A radar is not only in the same level of light fighter radar products in the advanced level, and even the face of third-generation heavy-duty fighter airborne radar also has considerable advantages. KLJ-7A radar detection range is not only much better than the early Su-27 series using the Zucker N001 radar, but also better than the Indian Air Force Su-30MKI fighters used Zucker N011M-type passive phased array radar. If taking into account the Sino-Russian twin in the detection range of the measurement process used in different standards, and the Chinese standard compared to the more stringent, the detection distance advantage in practical use than the two sides in the promotional materials The gap is more obvious.
US APG-83 radar, which is designed for Taiwan's F-16V conversion of low-cost AESA radar, the use of a large number of F-35's APG-81 technology. The radar antenna dimensions also exceed KLJ-7A, but the performance of the two close. Sino-US foreign trade radar technology is basically the same level, one can imagine, the main technical fighter radar on both sides of the same level
Considering that this is only a light for the use of light fighters in the main detection indicators can overwhelm a series of heavy aircraft airborne radar, combined with the aircraft radar size, antenna aperture and transmit power analysis, the radar The level of technology has been close to the US F-22 on the use of AN / APG-77 active phased array radar, in the world's advanced level, also shows Nanjing 14 airborne active phased array radar on the deep technical strength and China Aviation The rapid development of industry.
In addition to detection range, KLJ-7A radar has a good detection range. The KLJ-7A radar further enhances the ability to track multiple targets simultaneously, while increasing the number of tracking targets from 10 to 15 while simultaneously guiding four of the missile attacks. And has the possibility to further enhance the performance. Of course, for the application of light fighters in terms of radar, because the aircraft carrying a one-time medium-range air to air missiles up and down in the four, the current performance is basically enough.
According to the exhibition side, KLJ-7A radar mode of operation rich, including the general search, tracking air, ground and sea different nature of the target, guided missile attack, synthetic aperture radar, close combat.
The active phased array technology is to make KLJ-7A radar has many advantages of the predecessors: the radar is not only difficult to use traditional measures to implement interference, but can use the technical characteristics of the launch antenna electronic interference operations; , Because the radar signal transmission and reception is composed of a large number of independent transmitter / receiver unit, virtually improve the operational reliability of the radar, because a few of the transmitter / receiver unit failure does not affect the normal use of radar, Said that even if 30% of the transmitter / receiver unit fails, the radar system can still maintain the basic use. At the same time, the multi-unit structure of the phased array radar can make it perform many functions at the same time, so that the fighter can perform the functions of weather detection and mapping, or use the radar mode Alternating function, and executes a plurality of different contents successively in a short time.
Because KLJ-7A radar size is small, the power and the required cooling conditions are relatively limited, it is easy to apply to a variety of light fighter upgrade. Not only can not spend much of the price of the existing foreign trade fighter from the standard three generations of machines upgraded to three generations of semi-fighter aircraft, greatly enhance its future air combat conditions in the viability and combat effectiveness; also can be used as some of the old medium And even heavy second-generation machine upgrade options, in the case of little money, so that these old fighters have comparable to even more than ordinary three generations of aircraft over the horizon air combat capability and stronger on the sea, ground attack capability; FTC-2000 / 2000G this level of senior trainer and primary combat aircraft, but also theoretically equipped with the upgrade of the type of radar, as with the line of sight capability of light fighter aircraft (of course, this improvement will significantly reduce the aircraft's flight performance , In the cost-effective than still open to question). This highly flexible fit and economy, has given the KLJ-7A radar unprecedented broad market prospects.
According to the feedback from the foreign air force equipped with KLJ-7 radar, the performance of the KLJ-7 radar is quite satisfactory. It is foreseeable that if the foreign light fighter equipped with the KLJ-7A radar will join the air force sequence of these countries, So that the air power of these countries even more powerful, icing on the cake. KLJ-7A radar is also expected to become China Electronics Technology Group 14 Institute in the field of foreign trade a new "big kill device" for the Chinese radar and then write an important international reputation.
http://finance.ifeng.com/a/20161101/14976175_0.shtml
艹艹艹
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Pakistan's military has been very interested in the J31's radar,
What you see is probably J31's radar.
（Block III）
https://defence.pk/threads/jf-17block3-may-use-the-j-31-radar.441996/
What you see is probably J31's radar.
（Block III）
https://defence.pk/threads/jf-17block3-may-use-the-j-31-radar.441996/
Last edited:
amardeep mishra
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How exactly a radar with "smaller" PAP can have detection range larger than a radar with much higher PAP?
PAP-power aperature product!
Considering the signal processing aspect aside,just this fact alone makes the entire article as written by fanboys.
nadeemkhan110
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The Nanjing Research Institute of Electronics Technology (NRIET) KLJ-7A active electronically-scanned array (AESA) radar. Photo credit: East Pendulum (http://www.eastpendulum.com)
KLJ-7A: PROPOSED AESA RADAR FOR THE JF-17 BLOCK-III
The Nanjing Research Institute of Electronics Technology (NRIET) has unveiled a new active electronically-scanned array (AESA) radar at the Zhuhai Air Show, reportedly for use with the JF-17 Block-III.
Designated the KLJ-7A, it appears that NRIET will market the new AESA radar as a replacement to the KLJ-7 and KLJ-7V2 currently onboard the JF-17 Block-I and Block-II, respectively.
The KLJ-7A’s feature list includes track while scan, multi-object targeting and multi-target engagement, and synthetic aperture radar with ground moving target identification (among others).
Specific details, such as the materials or number of transceiver modules (TRM), were not listed. According to Henri Kenhmann (via East Pendulum), NRIET’s deputy director Wang Hongzhe stated that the radar has a maximum range of 170 km (likely in reference to a radar cross-section of 5m2).
Kenhmann also reported that the KLJ-7A can simultaneously track 15 targets and engage four.
Notes & Comments:
Based on the photos being circulated on several online discussion mediums, the KLJ-7A appears to be a small radar suite, one appropriate for the JF-17’s limited internal space. The name may indicate that the KLJ-7A is a direct development of the KLJ-7, but the images suggest that the KLJ-7A is a distinct design. In other words, it does not appear that the KLJ-7A and KLJ-7/V2 share anything beyond the name.
The inclusion of an AESA radar is the centerpiece of the JF-17 Block-III program, the first major iterative update of the JF-17 Thunder lightweight multi-role fighter.
In general, an AESA radar would provide greatly improved electronic counter-countermeasure (ECCM) capabilities, meaning, higher resistance to enemy active electronic warfare (EW) jamming.
This is achieved using hundreds of solid-state TRMs, each serving as a ‘micro-radar’ of sorts transmitting a unique signal simultaneously. For jamming pods, this makes the task of identifying, recording and re-transmitting all those signals, which change with each pulse, difficult.
This method also helps with shielding the radar from being detected by enemy radar warning receivers – i.e. giving it a ‘low-probability-of-intercept.’
Although Leonardo-Finmeccanica’s Vixen AESA radar line was identified as an option by PAF officials (during the 2015 Paris Air Show), NRIET’s KLJ-7A seems like it was designed with the JF-17 directly in mind, and as such, could potentially offer a superior balance of performance, integration complexity, and price.
Source: http://quwa.org/2016/10/31/klj-7a-proposed-aesa-radar-jf-17-block-iii/
Bilal Khan 777
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I am a pilot, not an electronic guy. I don't know what this is, or who this is for.
cirr
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The Nanjing Research Institute of Electronics Technology (NRIET) KLJ-7A active electronically-scanned array (AESA) radar. Photo credit: East Pendulum (http://www.eastpendulum.com)
KLJ-7A: PROPOSED AESA RADAR FOR THE JF-17 BLOCK-III
The Nanjing Research Institute of Electronics Technology (NRIET) has unveiled a new active electronically-scanned array (AESA) radar at the Zhuhai Air Show, reportedly for use with the JF-17 Block-III.
Designated the KLJ-7A, it appears that NRIET will market the new AESA radar as a replacement to the KLJ-7 and KLJ-7V2 currently onboard the JF-17 Block-I and Block-II, respectively.
The KLJ-7A’s feature list includes track while scan, multi-object targeting and multi-target engagement, and synthetic aperture radar with ground moving target identification (among others).
Specific details, such as the materials or number of transceiver modules (TRM), were not listed. According to Henri Kenhmann (via East Pendulum), NRIET’s deputy director Wang Hongzhe stated that the radar has a maximum range of 170 km (likely in reference to a radar cross-section of 5m2).
Kenhmann also reported that the KLJ-7A can simultaneously track 15 targets and engage four.
Notes & Comments:
Based on the photos being circulated on several online discussion mediums, the KLJ-7A appears to be a small radar suite, one appropriate for the JF-17’s limited internal space. The name may indicate that the KLJ-7A is a direct development of the KLJ-7, but the images suggest that the KLJ-7A is a distinct design. In other words, it does not appear that the KLJ-7A and KLJ-7/V2 share anything beyond the name.
The inclusion of an AESA radar is the centerpiece of the JF-17 Block-III program, the first major iterative update of the JF-17 Thunder lightweight multi-role fighter.
In general, an AESA radar would provide greatly improved electronic counter-countermeasure (ECCM) capabilities, meaning, higher resistance to enemy active electronic warfare (EW) jamming.
This is achieved using hundreds of solid-state TRMs, each serving as a ‘micro-radar’ of sorts transmitting a unique signal simultaneously. For jamming pods, this makes the task of identifying, recording and re-transmitting all those signals, which change with each pulse, difficult.
This method also helps with shielding the radar from being detected by enemy radar warning receivers – i.e. giving it a ‘low-probability-of-intercept.’
Although Leonardo-Finmeccanica’s Vixen AESA radar line was identified as an option by PAF officials (during the 2015 Paris Air Show), NRIET’s KLJ-7A seems like it was designed with the JF-17 directly in mind, and as such, could potentially offer a superior balance of performance, integration complexity, and price.
Source: http://quwa.org/2016/10/31/klj-7a-proposed-aesa-radar-jf-17-block-iii/
170km RCS 2m^2
So PAF will use Chinese AESA Radar and avionics. Interesting. @MastanKhan
PaklovesTurkiye
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ohmrlobalobayeh
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hahahahah....This was too good. U love Pakistani way of celebration....
atually, that was a pic of a Pakistani celebration after a won cricket match
Akasa
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Does it say so in the placard? Or is it just a rumor?
ohmrlobalobayeh
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if it's indeed 'comparable to F-35's radar', then it would be slighltly more then 148km at least, as can be seen from here:
80 nautical miles = 148.16km
Akasa
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My question pertained to what type of target does the 170 km figure refer to. 5 m^2 or 2m^2, and according to whom?
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