中文说明：基于互功率谱的时延估计，复化三点Gauss-lengend公式求pi，进行逐步线性回归，对HARQ系统的吞吐量分析，用于时频分析算法，单径或多径瑞利衰落信道仿真。
English Description：
Cross power spectrum time delay estimation based on, the complex of three Gauss-lengend formula for PI, stepwise linear regression and analysis of HARQ system throughput, for time-frequency analysis algorithm, single path or multipath Rayleigh fading channel simulation.