A high-precision bistatic radar time synchronization detection system and detection method

Abstract

The invention provides a high-precision bistatic radar time synchronization detection system and a high-precision bistatic radar time synchronization detection method. The high-precision bistatic radar time synchronization detection system comprises a transmission signal module, a reception signal module, a first frequency conversion module, a second frequency conversion module, a signal control module, a frequency standard module, a first phase-locked frequency multiplication module, a second phase-locked frequency multiplication module, a frequency synthesis module, a first synchronization detection module, a second synchronization detection module, a gate circuit module, a counter module, a signal processing module and a synchronous display module. Compared with the conventional time synchronization detection technology, the high-precision bistatic radar time synchronization detection method regards a phase coincidence point, namely, a time synchronization point as gate opening andclosing signals of the gate circuit, and eliminates the counting errors with + / -one character in the conventional time synchronization detection; and the high-precision bistatic radar time synchronization detection method further adopts a different frequency phase synchronization detection principle which is different from the conventional phase detection method, so that the measurement precisionis greatly increased, the measurement system has higher stability in a complicated background, and the safety and reliability are higher.

Description

technical field [0001] The invention relates to the technical field of time synchronization, in particular to a high-precision bistatic radar time synchronization detection system and detection method. Background technique [0002] Bistatic radar can overcome many technical defects of monostatic radar. At present, most of the radars equipped by countries in the world are monostatic radars, and there is no time synchronization problem. For bistatic radars, since the transmitting part and receiving part of the signal are in different positions, the time of the transmitting signal and the receiving signal cannot be kept. Strict synchronization, thus reducing the accuracy of radar ranging. Therefore, time synchronization has become one of the key technical issues to be solved urgently for radars, especially bistatic radars. The solution of this problem can better deal with threats from electronic reconnaissance, electronic jamming, stealth attacks, anti-radiation weapons, and l...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a high-precision bistatic radar time synchronization detection system and detection method, which can solve the problem that the traditional time synchronization detection technology requires complex frequency synthesis and normalization processing circuits and radar ranging results are not accurate

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