中文说明：现代信号处理中谱估计在matlab中的使用，用谱方法计算流体力学一些流动现象的整体稳定性,有循环检测，周期性检测，利用自然梯度算法，用MATLAB实现的压缩传感，阵列信号处理的高分辨率估计。
English Description：
Modern spectral estimation using MATLAB in signal processing, computational fluid dynamics flow by spectral method of overall stability, cycle detection, periodic testing, based on natural gradient algorithm, using MATLAB to realize the compressed sensing and high resolution estimation in array signal processing.