摘要
信号的调制在通信系统的研究中起着重要作用。在无线通信中和其他大多数场合,调制一词均被指载波调制。载波调制,就是用调制信号去控制载波的参数的过程,即使载波的某一个或某几个参数按照调制信号的规律而变化。标准调幅是常规双边带调制,简称AM调幅,其实质是频谱搬移,频域上将原信号的频谱移动到某频率处,以适合信道传输的最佳频率范围。论文设计采用CCS5000实现信号的AM调制功能。
Signal modulation plays an important role in the study of communication system.In the wireless communication and most other occasions,modulation refers to the carrier modulation.Carrier modulation is the process of signal modulated to control the parameters of the carrier,which is also the carrier of a certain one or several parameters in accordance with the law of the modulation signal.Standard modulation is the conventional double sideband modulation,which is called＂AM＂modulation.Its essence is the spectrum shift.In the frequency domain,the original signal spectrum moves to a certain frequency,in order to suit the best channel transmission frequency range.In this paper,the AM modulation function of the signal is realized by using CCS5000.
出处
《舰船电子工程》
2016年第4期86-87,119,共3页
Ship Electronic Engineering
基金
海军工程大学自然科学基金(编号:HGDQNJJ15017)资助
