Calibrating method and device of radar dynamic tracking accuracy

A technology of dynamic tracking and calibration device, applied in radio wave measurement systems, instruments, etc., can solve the problems of difficulty in radar calibration and high cost, and achieve the effect of high cost-effectiveness, good system repeatability, and improved calibration accuracy.

Inactive Publication Date: 2013-07-24
THE THIRD ENG CORPS RES INST OF THE HEADQUARTERS OF GENERAL STAFF PLA
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Problems solved by technology

However, whether it is the trajectory calculated in advance or the trajectory measured by the standard radar, there is a certain error in itself, generally at the meter level. This error will be directly brought into the radar calibration, and the cost of this method is relatively high. must be difficult

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  • Calibrating method and device of radar dynamic tracking accuracy
  • Calibrating method and device of radar dynamic tracking accuracy

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Embodiment Construction

[0022] In order to make it easier for those skilled in the art to understand and implement the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] like Figure 1-2 As shown, the radar dynamic tracking accuracy calibration device provided by the present invention includes a simulated target, a traction mechanism and a coordinate receiving station.

[0024] The simulated target 1 includes a casing, which is designed to have the same shape or radar reflection characteristics as the target to be simulated and detected, that is, any required material, such as metal, composite material, etc., can be used to make the desired shape, such as an aircraft , missiles, etc.; it can also be made into the required size and shape according to the target characteristics that the radar needs to measure. A fixed platform is arranged inside or above the casing for carrying a positionin...

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Abstract

The invention relates to a calibrating method and device of radar dynamic tracking accuracy. The calibrating method and device of the radar dynamic tracking accuracy comprises a traction cableway, an analog target and a coordinate receiving station, wherein the analog target slides on the cableway through traction of an electric winding machine, when the analog target reflects a radar wave, the analog target locating a self coordinate at the same time, and the analog target sends back location data to the coordinate receiving station. The coordinate receiving station is fixedly installed on the ground, receives the real-time locating data sent back from the analog target, compares the real-time locating data with radar echo location data, and finishes calibration of the radar dynamic tracking accuracy. The calibrating method and device of the radar dynamic tracking accuracy is high in location accuracy, avoids system errors caused by a traditional calibrating method, and is easy and convenient to erect and good in applicability. Through repeated measurement of a radar and repeated comparison, radar system errors can be obtained, so that convenient and reliable calibration to the radar dynamic tracking accuracy is achieved. Calibrating accuracy is improved, and meanwhile calibrating cost of the radar dynamic tracking accuracy is greatly reduced.

Description

technical field [0001] The invention relates to a precision calibration method and device for a radio positioning system, in particular to a radar dynamic tracking precision calibration method and device, which can effectively eliminate the influence of ground clutter and calibrate the dynamic tracking precision in the near area of ​​a low-power radar. Background technique [0002] Calibration of radar dynamic tracking accuracy is an important part of radar development and a key indicator to ensure radar detection and tracking performance. At present, the radar dynamic tracking accuracy is mainly calibrated by the method of shooting the target missile, that is, by calculating the trajectory of the target missile in advance, or measuring the trajectory of the target missile through other standard radars, and using it as a standard value to track with the tested radar. Compared with the obtained ballistic trajectory, the radar dynamic tracking accuracy is calibrated. However,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/40
Inventor 任辉启易治周世峰徐流恩高超伍俊穆朝民林加剑
Owner THE THIRD ENG CORPS RES INST OF THE HEADQUARTERS OF GENERAL STAFF PLA
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