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Continuous wave one-dimensional phase scanning miss distance vector detection method and device

A detection method and off-target technology, applied in the direction of measuring devices, radio wave measurement systems, targets, etc., can solve the problems of unreliable vector detection of multiple high-speed small targets, limited film recording time, camera stability problems, etc., to achieve The effect of reduced possibility, low maintenance cost, and convenient installation and maintenance

Active Publication Date: 2015-06-03
LINGBAYI ELECTRONICS GRP
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Problems solved by technology

This method has the following disadvantages: good lighting conditions are required, and it is greatly affected by meteorological conditions; data will be lost when the target is hit; the time of film recording is limited and the stability of the camera; in addition, its data processing is relatively complicated
However, the current target measurement device cannot perform reliable vector detection on multiple high-speed small targets; in addition, since the miss-target measurement device is usually placed near the target, the probability of being hit is high, it is easy to be damaged and cannot be used repeatedly

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  • Continuous wave one-dimensional phase scanning miss distance vector detection method and device
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  • Continuous wave one-dimensional phase scanning miss distance vector detection method and device

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[0015] refer to figure 1 . In the continuous wave one-dimensional phase-sweep miss vector detection, the center of the radar points to the bull's-eye, the angle between the radar and the true north is α°, and the distance between the radar and the target is L. The miss measurement radar is placed outside the impact area, and the one-dimensional phase scanning system is used to scan the target area in the horizontal direction at high speed and continuously, and the scanning range is ±45° centered on the bull's eye. The width of horizontal × pitch scanning beam is 2°×10°, and 45 wave positions can cover the entire monitoring area. The beam of each wave position of the radar is fixed and set in advance, and then starts from the first wave position on the left, and scans each wave position from left to right in turn until the last wave position is scanned, and then loops again Start scanning from the first wave position, and form a 90°×10° search screen on the target area in suc...

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Abstract

The invention discloses a continuous wave one-dimensional phase scanning miss distance vector detection method and device. The method comprises the following steps: continuously scanning a target region at high speed in the horizontal direction by adopting a one-dimensional phase scanning mechanism, fixing and setting the beam direction of each beam position of a radar in advance, and sequentially and cyclically scanning each beam position from left to right from the first beam position on left; when the radar scans a certain beam position, measuring an object distance through a linearly frequency-modulated continuous wave distance measurement mechanism by virtue of the radar, transmitting a frequency-modulated continuous wave signal to a scanning sector, and when an object enters a detection area, performing miss distance vector measurement on the distance Rp' and direction of the object relative to the radar in broadband linearly frequency-modulated continuous wave distance measurement and single pulse sum and difference angle measurement manners, and converting the distance and direction of the object relative to the radar into a miss distance vector relative to a target by utilizing a geometrical relationship of the distance and the azimuth angle relative to the target and a coordinate conversion formula by virtue of a radar data processing extension.

Description

technical field [0001] The invention relates to a continuous wave one-dimensional phase sweep off-target amount vector detection method and device. Background technique [0002] With the continuous development of the off-target measurement technology, the current working method of the off-target measurement system has gradually developed from the collaborative type to the non-cooperative type; the measurement data type is based on the mature scalar type off-target measurement, and is moving to the vector off-target measurement. develop and continuously improve. The so-called scalar miss measurement refers to the measurement of the minimum relative distance between the projectile and the target during the encounter process, while the vector miss measurement not only needs to obtain the scalar miss quantity, but also measures the relative position (distance, angle) of the projectile and the target encounter process. and relative speed. [0003] The measurement of the amount ...

Claims

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Application Information

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IPC IPC(8): G01S13/32F41J5/00
CPCG01S13/505
Inventor 邓桂福高节刘海良张杨李庶中
Owner LINGBAYI ELECTRONICS GRP
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