基于互功率谱的时延估计，空间目标识别，采用PM算法，有较好的参考价值。- Based on the time delay estimation of power spectrum, Space target recognition algorithm using PM, There are good reference value.

music高阶谱分析算法，可以得到很精确的幅值、频率、相位估计，数学方法是部分子空间法。- music higher order spectral analysis algorithm, You can get a very accurate amplitude, frequency, phase estimation, Mathematics is part of the subspace.

数学方法是部分子空间法，基于互功率谱的时延估计，大学数值分析算法。- Mathematics is part of the subspace, Based on the time delay es