Research on PMF-FFT fast capture algorithm and performance under high dynamic conditions

Wujie Zhang; Fangxiu Jia

doi:10.1117/12.2653469

27 September 2022 Research on PMF-FFT fast capture algorithm and performance under high dynamic conditions

Wujie Zhang, Fangxiu Jia

Proceedings Volume 12346, 2nd International Conference on Information Technology and Intelligent Control (CITIC 2022); 123460B (2022) https://doi.org/10.1117/12.2653469
Event: 2nd International Conference on Information Technology and Intelligent Control (CITIC 2022), 2022, Kunming, China

Abstract

In the ballistic parameter return system, due to the high dynamic changes of the projectile speed and trajectory, a large Doppler frequency shift will occur, which makes the acquisition of the spread spectrum signal more difficult and the acquisition time increases. The effectiveness of shells on the battlefield will be affected. The use of partially matched filtering combined with fast Fourier transform (PMF-FFT) can effectively improve the capture efficiency and greatly reduce the capture time. The selection of the number of partially matched filters affects the characteristics of the algorithm. The theoretical performance and capture performance are analyzed in detail in this paper, which has guiding significance for theoretical analysis and engineering practice.

Citation Download Citation

Wujie Zhang and Fangxiu Jia "Research on PMF-FFT fast capture algorithm and performance under high dynamic conditions", Proc. SPIE 12346, 2nd International Conference on Information Technology and Intelligent Control (CITIC 2022), 123460B (27 September 2022); https://doi.org/10.1117/12.2653469

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