National University of Defense Technology

Zukun Lu

Feixue Wang

Wenxiang Liu

Sixin Wang

Baiyu Li

Guangfu Sun

Zhibin Xiao

Feiqiang Chen

Xiaomei Tang

Honglei Lin

Pengcheng Ma

Muzi Yuan

Xiaozhou Ye

Long Huang

Zongnan Li

Jie Song

Wei Xiao

Zhihao Xue

The provided is an anti-jamming processing architecture based on a dual-component fusion application of a satellite navigation signal. The anti-jamming processing architecture includes: a receiver matched reception module, configured to receive a satellite navigation signal and separate the satellite navigation signal into a pilot component and a data component; a data channel anti-jamming module, configured to design a filtering weight vector recursive formula and perform anti-jamming on the received data component based on an updated filtering weight vector; a pilot channel anti-jamming module, configured to design a filter weight update formula and perform anti-jamming on the received pilot component based on an updated filter weight; and a data fusion application module, configured to perform message solving and pseudocode ranging respectively based on an anti-jamming data component and pilot component, fuse a pseudocode ranging result and solved message information, and provide a fusion result for a user.

Anti-jamming processing architecture based on dual-component fusion application of satellite navigation signal

A design method for a satellite navigation signal system with mixed modulation of direct spread spectrum and frequency hopping includes: modulating the spread spectrum code sequence of multipath signal components; mixing and multiplexing with the signal components corresponding to the same frequency point; forming a baseband code sequence; separating signal components corresponding to the baseband code sequence to obtain separated radio frequency signals; recombining and modulating separated radio frequency signals; controlling the frequency hopping pattern by the frequency hopping code sequence if the separated radio frequency signals are authorized signals, and performing mixed frequency synthesis modulation; performing direct combined radio frequency modulation if the separated radio frequency signals are unauthorized signals, and obtaining the recombined signal component; amplifying the signal power to obtain the direct spread spectrum navigation signal.

Designed method for satellite navigation signal system with mixed modulation of direct spread spectrum and frequency hopping

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Changsha, China

Zukun Lu