包括广义互相关函数GCC时延估计，esprit算法对有干扰的信号频率进行估计,ofdm系统仿真 含16qam调制 fft 加窗 加cp等模块。- Including the generalized cross-correlation function GCC time delay estimation, esprit algorithm signal frequency interference can be assessed ofdm system simulation including 16qam modulation fft windowing modules plus cp.