匹配追踪和正交匹配追踪，分析了该信号的时域、频域、倒谱，循环谱等,有循环检测，周期性检测，用于建立主成分分析模型，LCMV优化设计阵列处理信号。- Matching Pursuit and orthogonal matching pursuit, Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. There are cycle detection, periodic test