An Approach to High—Order Cumulants Used to Detect Multifrequency Signals in Telephone Networks
LIUYing, WANGShu-xun · 中国邮电高校学报：英文版 · 2000
In accordance with the detecting process of multi-frequency signals between the offices in telephone network ,and in contrast with the autocorrelation method used to handle the multi-frequency signals,a fast,inexpensive and unbiased of cumulants estimation method is adopted in detecting signals .This detecting method is better for resisting noise performance and more practical than the autocorrelation method.