摘要
本文介绍了余弦脉冲四相码信号的概念,分析了它的频谱特性和主要特点,提出了产生余弦脉冲四相码信号的两种电路方案及该信号的一些应用。
This paper introduces the concept of cosine pulse signal with four phase codes and analyzes the frequency spectrum of the signal and its main characteristics. Two circuit approaches which generate the cosine pulse signal with fourphase code are proposed and some applications with this kind of signal are offered in this paper as well.
出处
《船舶工程》
CSCD
北大核心
1996年第6期47-51,3,共5页
Ship Engineering
关键词
余弦脉冲
四相码
数字信号
频带利用率
通信
Sine pulse, Four-pulse codes, Digital signal, The efficiency of frequency spectrum