滁州学院学报
滁州學院學報
저주학원학보
Journal of Chuzhou University
2011年
2期
21~23
,共null页
幅度调制 AM信号 过调制 调幅系数
幅度調製 AM信號 過調製 調幅繫數
폭도조제 AM신호 과조제 조폭계수
amplitude modulation; AM signal; over modulation; amplitude modulation index
讨论了模拟幅度调制中过调幅信号的产生,探讨了过调幅信号和AM信号、DSB信号的关系,改进了电路图使之根据给定参数连续产生和解调AM信号、DSB信号以及过调幅信号,得出了过调幅信号是一种双边带信号的结论,不会存在过调幅失真。
討論瞭模擬幅度調製中過調幅信號的產生,探討瞭過調幅信號和AM信號、DSB信號的關繫,改進瞭電路圖使之根據給定參數連續產生和解調AM信號、DSB信號以及過調幅信號,得齣瞭過調幅信號是一種雙邊帶信號的結論,不會存在過調幅失真。
토론료모의폭도조제중과조폭신호적산생,탐토료과조폭신호화AM신호、DSB신호적관계,개진료전로도사지근거급정삼수련속산생화해조AM신호、DSB신호이급과조폭신호,득출료과조폭신호시일충쌍변대신호적결론,불회존재과조폭실진。
The generation of overmodulated AM signal in analog amplitude modulation is discussed.The relations among overmodulated AM signal、AM(Amplitude Modulation) signal and DSB(Double Side Band) signal are described.The circuit overmodulated AM signal、AM(Amplitude Modulation) signal and DSB(Double Side Band) signal could be generated continuously and demodulated only by changing the given parameter is improved.Then the conclusion is drawed that overmodulated AM signal is also a kind of double side band signal and existed no amplitude modulation distortion.