信号处理中的旋转不变子空间法，采用的是脉冲对消法，包括广义互相关函数GCC时延估计，数据模型归一化，模态振动，LCMV优化设计阵列处理信号。- Signal Processing ESPRIT method, It uses a pulse of consumer law, Including the generalized cross-correlation function GCC time delay estimation, Normalized data model, modal vib