一种海杂波背景下雷达信号检测方法的研究

摘要

结合相位编码信号和步进频率信号各自的特点,提出了一种脉内相位编码-脉间步进频率的组合调制低截获概率雷达信号(PCSF).针对海杂波的统计特性,提出了一种可实现的K分布海杂波模型下的距离扩展目标检测器并进行了仿真分析.研究结果表明,在同一信杂比条件下,提出的脉内二相编码-脉间步进频率组合调制信号较单独的相位编码信号和步进频率信号的目标检测性能有较大的改善.%A compound modulated low probability of intercept radar signal (PCFS) is proposed, which integrated the features of phase-coded signal and stepped-frequency signal. Aiming at the statistical characteristic of sea clutter, a feasible distant spread target detect method under K-distribution sea clutter model is presented and the simulation analysis is performed. Study results show that PCSF signal' s target detection probability is better than phase-coded signal and stepped-frequency signal.