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恒定幅度的多项式相位信号(PPS)由其相位多项式系数表征。针对短序列PPS参数估计的困难,在介绍基于高阶模糊函数(HAF)和乘积高阶模糊函数(PHAF)参数估计算法的基础上,通过对该算法的估计效果特别是短序列情况的分析,提出短序列PPS参数估计的一般方法和对该算法的改进。Monte-Carlo仿真表明,改进算法改善了PPS参数估计的效果,同时提高了运行效率。
The constant amplitude polynomial phase signal (PPS) is characterized by its phase polynomial coefficients. Aiming at the difficulty of PPS parameter estimation of short sequence, based on the introduction of high-order ambiguity function (HAF) and product high-order ambiguity function (PHAF) parameter estimation algorithm, through the analysis of the estimation effect of the algorithm, especially the short sequence, The general method of short sequence PPS parameter estimation and the improvement of the algorithm are proposed. Monte-Carlo simulation shows that the improved algorithm can improve the effect of PPS parameter estimation and improve the operation efficiency.