例句與造句

1. Two detection methods of chirp signals are presented in the dissertation : the cyclic autocorrelation detection method and the correlation detection method of cyclic autocorrelation function . it is shown that the two methods both have an excellent performance of blind detection . the performance analyses of the two detection methods are both carried out for additive noise or multiplicative noise , and the output signal - to - noise ratio ( snr ) expressions of the two methods are also derived
   通過研究提出了兩種線性調頻信號的檢測方法?基于循環(huán)自相關函數(shù)包絡的檢測方法和基于循環(huán)自相關函數(shù)的相關函數(shù)包絡的檢測方法，兩種方法均可實現(xiàn)信號的盲檢測，有良好的檢測性能，文中還分析了加性噪聲及存在乘性和加性噪聲情況下兩種檢測方法的性能，推導出了輸出信噪比公式。
2. It's difficult to find autocorrelation detection in a sentence. 用autocorrelation detection造句挺難的