Double-channel monopulse radar tracking dynamic target aircraft real-time phase calibration method

A monopulse radar, dynamic target technology, applied in the field of aerospace measurement and control, can solve problems such as inability to phase calibration, and achieve the effect of reducing workload, strong equipment adaptability, and improving work efficiency

Inactive Publication Date: 2015-03-04
UNIT 63680 OF PLA
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Problems solved by technology

[0007] The purpose of the present invention is to overcome above-mentioned deficiency, provide a kind of dual-channel single-pulse radar tracking dynamic target aircraft real-time phase calibration method, it can solve the problem that dual-channel single-pulse radar needs to use static analog target to carry out phase calibration in advance before tracking, The problem that phase calibration cannot be performed in real time during the process of tracking a dynamic target aircraft

Method used

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Embodiment Construction

[0013] The present invention a kind of dual-channel single-pulse radar tracking dynamic target aircraft real-time phase calibration method, the method comprises the following steps:

[0014] Step 1. Preparation in advance

[0015] 1.1. Make sure that the tracking and road and tracking difference of the azimuth and elevation dual-channel monopulse radar work normally;

[0016] 1.2. Provide accurate orbit forecast data for the azimuth and elevation dual-channel monopulse radar through orbit elements, theoretical ballistics, etc., and send it to the azimuth and elevation dual-channel monopulse radar in real time;

[0017] 1.3. The operating frequency of the dynamic target aircraft is known;

[0018] Step 2. Obtain data at different times

[0019] 2.1. Maintain visual communication between the dynamic target aircraft and the radar antenna;

[0020] 2.2. The main lobe of the radar antenna is roughly aligned with the dynamic target aircraft, and the target aircraft is within t...

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Abstract

The invention relates to a double-channel monopulse radar tracking dynamic target aircraft real-time phase calibration method. The double-channel monopulse radar tracking dynamic target aircraft real-time phase calibration method comprises the following steps of step one performing advance preparation work; step two obtaining data at different moments; step three calibrating a phase deviation between a tracking sum path and a tracking different path. The double-channel monopulse radar tracking dynamic target aircraft real-time phase calibration method can solve the problem that a former double-channel monopulse radar requires to perform phase calibration through a static simulation target in advance before tracking and cannot perform real-time phase calibration during a process of tracking a dynamic target aircraft.

Description

technical field [0001] The invention relates to a real-time phase calibration method for a dual-channel single-pulse radar tracking dynamic target aircraft, which belongs to the technical field of aerospace measurement and control. Background technique [0002] The dual-channel single-pulse tracking system has the advantages of high tracking accuracy, high data rate, long range, and strong anti-interference ability, so it is widely used in shipborne and land-based measurement and control radars. According to the design principle of the dual-channel single-pulse tracking system, ensuring the phase consistency of the sum and difference channels is a necessary condition for demodulating the correct angle error. Therefore, all dual-channel monopulse radars must perform phase calibration before tracking to obtain the phase difference of the sum and difference channels, and correct it during tracking. If the phase calibration is inaccurate, it will directly affect the tracking ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/40G01S13/68
CPCG01S7/40G01S13/68
Inventor 魏连魁刘杰陈小刚胡金辉黄珂蔡瑾曜李新星
Owner UNIT 63680 OF PLA
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