(1)DSB调制的时域表现,Signal .* Carrier; (2)AM调制的时域表现,(Signal +1).* Carrier,调制指数为1/2; (3)AM调制的时域表现,(Signal +2).* Carrier,调制指数为1; (4)DSB调制的频域表现,1 MHz 载波,20 kHz 信号,在(1MHz - 20kHz)和(1MHz + 20kHz)两个位置还有同样大小的频率分量,已调信号中不...
(1)DSB调制的时域表现,Signal .* Carrier; (2)AM 调制的时域表现,(Signal +1).* Carrier,调制指数为1/2; (3)AM 调制的时域表现,(Signal +2).* Carrier,调制指数为1; (4)DSB调制的频域表现,1 MHz 载波,20 kHz 信号,在(1MHz - 20kHz)和(1MHz + 20kHz)两个位置还有同样大小的频率分量,已调信号...
(1)DSB调制的时域表现,Signal .* Carrier; (2)AM调制的时域表现,(Signal +1).* Carrier,调制指数为1/2; (3)AM调制的时域表现,(Signal +2).* Carrier,调制指数为1; (4)DSB调制的频域表现,1 MHz 载波,20 kHz 信号,在(1MHz - 20kHz)和(1MHz + 20kHz)两个位置还有同样大小的频率分量,已调信号中不...
The DSBSC AM Demodulator Passband block demodulates a signal that was modulated using double-sideband suppressed-carrier amplitude modulation. The input is a passband representation of the modulated signal. Both the input and output signals are real scalar signals. Typically, an appropriate Carrier fre...
In particular, Green/Anderson-Sprecher/Pierre present a nonlinear regression (NLR) -based algorithm that utilizes a pure sinusoidal test signal for sensorcalibration [1]. This paper develops a double side-band suppressed carrier (DSB-SC) signal model for use with NLR-based calibration methods. ...
如果在 AM 调制模型中将直流 去掉,即可得到一种高调制效率的调制方式 —抑制载波双边带信号 (DSB—SC) ,简称双边带信号。其时域表达式为 (t)=m(t)cos( t)。式中,假设的平均值为 0。DSB 的频谱与 AM 的谱相近,只 是没有了在 处的 函数,即 ( )= [M( )+M( )] (1-5) 其典型波形和频谱如图 1...
aGeneration and detection of DSB-LC and DSB-SC signals. Transmission bandwidth. Power in carrier and signal. DSB-LC和DSB-SC信号的世代和侦查。 传输带宽。 力量在载体和信号。[translate]
In this lab, students will create a DSBSC signal and gain insight into the meaning of “Suppressed Carrier.” They will also use product demodulation to recover the message and examine the effect of phase and frequency errors on the recovery process. ...
An optical double-sideband suppressed-carrier (DSB-SC) transmission with a frequency-shift-keyed (FSK) signal was proposed for fiber-optical transmission of microwave signals. The DSB-SC signal was obtained by Mach-Zehnder interferometric modulation with π optical phase difference. In the experiments...
AM调制典型波形和频谱如图1-1所示: 图1-1 AM调制典型波形和频谱如果在AM调制模型中将直流去掉,即可得到一种高调制效率的调制方式—抑制载波双边带信号(DSB—SC),简称双边带信号。其时域表达式为(t)=m(t)cos(t)。式中,假设的平均值为0。DSB的频谱与AM的谱相近,只是没有了在处的函数,即 ()=[M()+M()]...