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Acta Armamentarii ›› 2014, Vol. 35 ›› Issue (5): 627-633.doi: 10.3969/j.issn.1000-1093.2014.05.008

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Parameter Extraction Technique Based on Periodic Ambiguity for PRCPM-SFM Compound Fuze Signal

ZHANG Shu-ning, ZHU Hang, ZHAO Hui-chang, LIU Jing   

  1. (School of Electronic and Optical Engineering, Nanjing University of Science and Technology,Nanjing 210094, Jiangsu, China)
  • Received:2013-08-06 Revised:2013-08-06 Online:2014-06-23
  • Contact: ZHANG Shu-ning E-mail:shuningzhang0704@163.com

Abstract: Feature parameter extraction of pseudo-random code phase modulation and sine frequency modulation (PRCPM-SFM) compound fuze signal is a precondition for deception jamming. The periodic ambiguity of PRCPM-SFM signal is analyzed for the PRCPM-SFM fuze detection signal in noise. The noise reduction mechanism based on periodic ambiguity is studied. Based on the characteristic of periodic ambiguity of fuze signal, the parameter extraction algorithm in ambiguity transform domain is designed. Simulation proves that the method can extract the feature parameters effectively and has good anti-noise ability.

Key words: ordnance science and technology, periodic ambiguity, parameter extraction, noise reduction, pseudo-random code phase modulation and sine frequency modulation fuze signal

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