A multi-subarray low-altitude radar

Abstract

The invention discloses multi-subarray low altitude radar, which comprises N uniformly distributed antenna subarrays, a main processing module and a control module, and is characterized in that the main processing module is connected with the N antenna subarrays; the control module is connected with the main processing module; the control module is used for sending a first instruction to the main processing module; the main processing module is used for responding to the first instruction and thus controlling P antenna subarrays in the N antenna subarrays to respond to the first instruction to perform gaze detection on a first detection region. The technical scheme can solve technical problems that most of the radar adopt a mechanical rotating scanning or phase scanning mode, mechanical rotating scanning needs a servo turntable, the volume, the weight, the reliability and the like of the servo turntable have great influences on the performance of the radar, and the cost is high, and that the phase scanning mode generally adopts multi-area-array large phased array radar in azimuth, implementation of the multi-area-array large phased array radar requires a lot of T / R assemblies, and the cost is high.

Description

technical field [0001] The invention relates to the field of radar measurement and control, in particular to a multi-subarray low-altitude radar. Background technique [0002] With the rapid development of electronic technology and information technology in recent years, radar has played an increasingly important role in combat. Radar is the "golden eye" of modern warfare. Modern warfare is an all-round, multi-level, and large-depth three-dimensional war. With the development of modern air defense systems, the ability to detect and destroy flying targets from medium and high altitudes has been greatly improved. However, the low-altitude invasion of aircraft, missiles, and UAVs has become one of the main threats to radar. Through the medium and long-range warning radar air defense network, it can sneak into the blind area of ​​radar detection and attack and destroy the enemy's air defense system. Aircraft such as small unmanned aerial vehicles, powered delta wings, and powe...

AI Technical Summary

Problems solved by technology

[0003] The existing primary radars have the following technical problems when realizing the coverage of the circle or sector in azimuth: most radars use mechanical rotation scanning or phase scanning, and the mechanical rotation scanning requires a servo turntable. The radar performance has a great impact and the cost is high; the phase-scanning method in azimuth generally adopts a large-scale phased array radar with multiple arrays, which requires a large number of T / R (Transmitter and Receiver, transmitting and receiving) components to realize, and the cost is high

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