carrier-frequency pulse

基本解釋

This paper presents a frequency comparison method between two sites by colour sub-carrier pulse, and some experiment results are given.
本文敘述一種直接利用彩色副載波脈沖進行兩地頻率比對的方法，并給出某些比對試驗結果。
But to the CW pulse signal with changing carrier wave frequency, common filter cannot achieve narrowband filter, whereas broadband filter cannot reach the request of the signal-noise ratio.
可是，對于載波頻率不斷變化的CW脈沖信號，普通的濾波器難以實現(xiàn)窄帶跟蹤濾波，而寬帶濾波又不能達到提高信噪比的要求。