基于matlab的am、dsb、ssb信號的調制-展示頁
2024-08-26 01:40本頁面
【正文】 于這種調幅波的發(fā)射功率在不影響信號傳輸的同時要比AM波小，節(jié)省了發(fā)射功率，但其解調電路要比AM波解調電路更復雜。DSB(Double Side Band)，在通信領域代表調制的一種方式，叫雙邊帶調制。調幅是用聲音的高低變?yōu)榉鹊淖兓碾娦盘?。基于Matlab的AM、DSB、SSB信號的調制摘要：調幅，英文是Amplitude Modulation（AM）。調幅也就是通常說的中波，范圍在5031060KHz。 距離較遠，受天氣因素影響較大，適合省際電臺的廣播。抑制載波雙邊帶調幅方式，簡稱為雙邊帶調幅，即為DSB。單邊帶 single side band的縮寫，就是使用電波波形的一半接收，比如用上邊帶或者下邊帶 USB LSB，剩下那一半波形因為形狀是和那一半對稱的，所以可以用接收機補全，上邊帶和下邊帶通訊統(tǒng)稱單邊帶SSB。關鍵詞：AM DSB SSB MATLABAbstract: Amplitude Modulation, English is Amplitude Modulation (AM).Medium wave amplitude modulation is often said, in the range 5031060 modulation is changes with the amplitude of the sound level into electrical away, are greatly influenced by the weather factors, suitable for provincial radio (Double Side Band), in the field of munications on behalf of the modulation of a way to call Double sideband carrier double sideband amplitude modulation, double sideband amplitude modulation for short, is the way of amplitude modulation is in the standard AM modulated wave carrier ponent is taken out of it, advantage is that the amplitude modulation wave transmitted power in does not affect the signal transmission at the same time than AM wave is small, save the transmission power, but its demodulation circuit is more plex than the AM signal demodulating single side band, is the use of half wave waveform, such as using sideband or lower sideband USB LSB, the remaining half waveform for half and the symmetrical shape, so you can use a receiver pletion, USB and LSB munications generally referred to as the SSB MATLAB programming language implementation of AM, DSB, SSB signal modulation.Keywords: AM DSB SSB MATLAB 引言現(xiàn)在的社會越來越發(fā)達，科學技術不斷的在更新，在信號和模擬通信的中心問題是要把載有消息的信號經系統(tǒng)加工處理后，送入信道進行傳送，從而實現(xiàn)消息的相互傳遞。把消息通過能量轉換器件，直接轉變過來
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