常見例句雙語例句A two-ray model is used for the frequency selective fading channel.頻率選擇性衰落信道采用了兩徑模型。Aiming at time-frequency overlapped two-signals in single-channel, this paper proposed a method to estimate carrier frequency based on second-order cyclic cumulants.針對單信道中時頻重疊雙信號的載波頻率估計問題，提出一種基于二階循環(huán)累積量的載波頻率估計方法。To solve the problems in symbol rate estimation of time-frequency overlapped two-signal in the single-channel, the algorithm of the power spectrum based on fourth-order cyclic cumulants is presented.提出一種基于四階循環(huán)累積量的功率譜分析算法，用于解決單信道時頻重疊雙信號的碼速率估計問題。 返回 two-frequency channel