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从自适应选频系统中多音FFT包络法的不足和缺点,导出了改进的多音FFT复包络法算法公式,并比较了两者的性能。计算机模拟和实验证明,FFT复包络算法的性能比FFT包络法要优越得多。
From the shortcomings and shortcomings of the multi-tone FFT envelope method in adaptive frequency-selective systems, an improved multi-tone FFT complex envelope algorithm formula is derived, and the performance of the two is compared. Computer simulation and experiments show that the performance of FFT complex envelope algorithm is much superior to that of FFT envelope method.