A radar range tracking method based on α-β and lms joint filtering

A distance tracking and joint filtering technology, applied in the reflection/re-radiation of radio waves, radio wave measurement systems, instruments, etc., can solve the problems of many modules, large amount of calculation, small amount of calculation, etc. The effect of calculation efficiency and moderate calculation amount
CN110221287BActive Publication Date: 2022-02-25BEIJING INST OF REMOTE SENSING EQUIP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING INST OF REMOTE SENSING EQUIP
Publication Date
2022-02-25

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Abstract

The invention discloses a radar distance tracking system based on α-β and LMS combined filtering, which includes a radar measurement information acquisition module, an LMS speed filter module and an α-β distance filter module, wherein the radar measurement information acquisition module is an LMS speed filter The module and the α-β distance filter module provide information data support, and the LMS speed filter module and the α-β distance filter module process the information data. The present invention can take into account both calculation efficiency and filtering precision by separately filtering the distance and the speed, and is especially suitable for the application of the high-speed mobile radar platform. The invention also relates to a radar distance tracking method based on α-β and LMS joint filtering.
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Description

technical field

[0001] The invention relates to a radar distance tracking method, in particular to a radar distance tracking method based on α-β and LMS combined filtering. Background technique

[0002] With the rapid development of digital signal processing technology, coherent radar system is commonly used in modern radars, and the coherent accumulation is realized by performing fast Fourier transform (FFT) on multiple continuous echoes in the distance dimension to improve the radar signal-to-noise ratio. The core of coherent accumulation is distance alignment. Through the current target distance and target radial velocity, the target distance at the next radar pulse time is estimated, and the center position of the receiving wave gate is controlled, that is, the wave gate is recursive, so that within the coherent processing period from The relative position of the echo of the same scattering center of the target and the center of the receiving wave gate remains unchanged ...

Claims

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