Design and characteristic analysis of multicarrier chaotic phase coded radar pulse train signal

Qiongdan Huang, Yong Li, Yaoping Zeng, Yinjuan Fu

科研成果: 期刊稿件文章同行评审

10 引用 (Scopus)

摘要

By introducing phase code intomulticarrier orthogonal frequency divisionmultiplex signal, themulticarrier phase coded (MCPC) radar signal possesses a good spectrum utilization rate and can achieve a good combination of narrowband and wideband processing. Radar pulse train signal not only reserves the high range resolution of monopulse signal, but also has the same velocity resolution performance as continuous wave signal does. In this study, we use the chaotic biphase code generated by Chebyshev mapping to conduct a phase modulation on MCPC pulse train so as to design two different types of multicarrier chaotic phase coded pulse train signal.Theambiguity functions of the two pulse train signals are compared with that of P4 codeMCPC pulse train. In addition, we analyze the influences of subcarrier number, phase-modulated bit number, and period number on the pulse train's autocorrelation performance. The low probability of intercept (LPI) performance of the two signals is also discussed. Simulation results show that the designed pulse train signals have a thumbtack ambiguity function, a periodic autocorrelation side lobe lower than P4 code MCPC pulse train, and excellent LPI performance, as well as the feature of waveform diversity.

源语言英语
文章编号724294
期刊International Journal of Antennas and Propagation
2014
DOI
出版状态已出版 - 2014

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