现代信号处理中谱估计在matlab中的使用，基于matlab GUI界面设计,合成孔径雷达（SAR)目标成像仿真，基于互功率谱的时延估计，多目标跟踪的粒子滤波器，基于分段非线性权重值的Pso算法。- Modern signal processing used in the spectral estimation in matlab, Based on matlab GUI interface design, Synthetic Aperture Radar (SAR) imaging simulation target, Based on the time delay estimation of power spectrum, Multi-target tracking particle filter, Based on piecewise nonlinear weight value Pso algorithm.