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Area array phase scanning low-altitude radar signal processing system

A radar signal processing and signal technology, applied in the field of radar, can solve the problems of large volume, high power consumption, weak ability to detect low-altitude and ultra-low-altitude targets, and achieve the effect of improving false alarm rate and high sensitivity

Active Publication Date: 2016-12-07
深圳前海中钧空天科学技术有限公司
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Problems solved by technology

[0004] The current air control and air defense of important areas are mainly detected by large radars, but the existing monitoring radar equipment is complex, bulky, and consumes a lot of power, which is not suitable for deployment and deployment, especially for low-altitude and ultra-low-altitude targets.

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  • Area array phase scanning low-altitude radar signal processing system

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Embodiment Construction

[0026] An area-array phase-sweep low-altitude radar signal processing system includes an area-array phase-sweep antenna feed, a cavity filter, a synthesis filter amplification module, a signal differential synthesis processing module, an A / D digital-to-analog detection module, a signal feedback control comparison module and Bridge balance control pre-scan identification circuit, wherein,

[0027] The area-array phase-swept antenna feed is used for transmitting signals and receiving signals;

[0028] The cavity filter is used to filter the center frequency of the receiving signal of the phase-sweep antenna feeder, and couple the signal filtered by the center frequency to the synthesis filter amplification module;

[0029] The synthesis filter amplification module is used to carry out "NAND gate" circuit identification and amplification on the filtered signal, and couple the amplified signals to the signal differential synthesis processing module for comparison;

[0030] The si...

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Abstract

The invention discloses an area array phase scanning low-altitude radar signal processing system. The system includes an area array phase scanning antenna feed, a cavity filter, a synthesis filtering amplification module, a signal differential synthesis processing module, an A / D digital-analog detection module, a signal feedback control comparison module and a bridge balance control pre-scanning identification circuit. The system can perform the selection and separation to calculate the characteristic signal of a moving target and the characteristic signal of a static target from the complex terrain and the state of strong clutter submergence, so as to monitor and identify the moving target.

Description

technical field [0001] The invention relates to the radar field, in particular to an X / Ku band area array phase-scan low-altitude radar signal processing system. Background technique [0002] The "Guiding Opinions on the Reform of Low-altitude Airspace Management" requires that "the safety of air defense, flight safety, and the safety of important ground targets should always be given top priority. In restricted areas, dangerous areas in the air, border areas, national key air defense target areas, and around key air defense targets, certain Surveillance airspace and reporting airspace are not designated in principle in the airspace over the region, flight-intensive areas, airport control zones, etc., which means that low-altitude "controlled airspace" needs to search, warn and deal with targets flying beyond the airspace range. The entire general aviation industry chain, including low-altitude alert and air traffic control system, will usher in a full-scale outbreak. [00...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/41
CPCG01S7/414
Inventor 陈昌志向世伟李建军郭树义马哲斌
Owner 深圳前海中钧空天科学技术有限公司
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