Radar multichannel receiving and transmitting system self-adaptive synchronization method based on channel correction compensation

Abstract

The invention belongs to the field of receiving and transmitting system synchronization, and particularly relates to a radar multichannel receiving and transmitting system self-adaptive time sequence synchronization method based on channel correction compensation. The whole synchronization system comprises a receiving and transmitting channel, a correction network, a correction module, a signal processing subsystem and a data communication network, and self-adaptive time sequence calibration synchronization between the channels is started every time when the radar is started and initialized. The method has the characteristics of high synchronization precision, high real-time performance, flexible mode and the like.

Description

Technical field [0001] The present invention belongs to the field of transmission and reception system, and more particularly to the adaptive timing synchronization method of radar multi-channel transceiver system based on channel correction compensation. Background technique [0002] Modern radar multi-channel digital array transceiver system has better target search, tracking and anti-interference, anti-stealth, and clutter suppression performance. Multi-channel digital array transceiver systems are very flexible on beamforming. When the radar is in different mode of operation, the respective transmit channels can generate different working waveforms independently, so that the radar can simultaneously scan or perform beams in horizontal direction scanning and vertical direction. Optimization, the noise signal introduced by the system clock is the effect of phase-in-band, so that the waveform signal synthesized by the radar space has a higher signal-to-noise ratio. The multi-cha...

AI Technical Summary

Problems solved by technology

This method requires synchronous control of multiple nodes on the transceiver channel, the implementation process is complex, and it also only depends on the fixed timing synchronization adjustment capability of digital devices

However, in the actual application process, due to the characteristics of the array radar multi-channel transceiver system, some individual channels may be damaged and need to be repaired and replaced.

In this way, it is necessary to manually re-test the delay error of each channel and re-correct the timing synchronization parameters. The workload is large and the applicability and maintainability are not flexible enough.

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