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KLJ-7A AESA radar similarities with AN/APG-81 (F-35 AESA radar)

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%; equipped with the corresponding between the performance of light-made foreign trade fighter radar also suddenly from the use of KLJ-7 radar period "between" into "take the lead." For 5 m2 RCS target, the radar detects range under air-air mode is increased by 65% to the original model (KLJ-7), compare with Israel EL / M-2302, A from sweden, 40% better effective range.


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, while 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 modified 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.

Regarding it's a radar for mid / light fighter, but it's major performance parameters can beat some heavy fighter's radar, and also consider the array size, antena aperture and transmit power, the technology level of this radar is very close to the APG-77 of F-22, which is among the best level in the world ....

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.
........ the radar also improved the multi-target tracing ability, increased simultaneous-tracking-number from 10 to 15, and can attack 4 of them at the same time, and this performance can be upgrated when it's needed ........

According to the exhibition side, KLJ-7A radar mode of operation rich, including the general search, tracking the air, ground and sea different nature of the target, guided missile attack, synthetic aperture radar, close combat.
The radar has abundant work mode ---- scan / trace air / ground / sea target, guide missile to attack, synthetic aperture radar for map drawing, dog fight .... etc.

The active phased array technology is to KLJ-7A radar has many advantages of the predecessors are not: the type of radar is not only difficult to implement interference with traditional measures, but can use the technical characteristics of its launch antenna electronic jamming operations; , Because the radar signal transmission and reception is composed of a large number of independent transmit / receive 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.
 

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