Modem(Modulator&Demodulator)是一种用于调制数字信号和解调模拟信号的设备。它的工作原理是将数字信号转换为模拟信号,以便它们能够通过模拟传输线路进行传输。 Modem有两个主要部分:调制器和解调器。调制器将数字信号转换为模拟信号,以便它们可以通过模拟传输线路传输。解调器执行这个过程的逆过程,将模拟信号转换回数字信号...
Figure 4-5 A M signal containing not only the carrier and sidebands but also the modulating signal.Figure 4-6 T he tuned circuit fi lters out the modulating signal and carrier harmonics,l eaving only the carrier and sidebands.V V c Amplitude Modulator and Demodulator Circuits 121 ...
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;SOLUTION: The demodulation circuit uses an Am modulator to amplitude- modulate a carrier whose frequency is fc with an analog signal wave and demodulates a base band digital signal from an AM data multiplex modulated wave signal in which a digital modulated wave signal is multiplexed at a ...
A common transceiver circuit for use as either a modulator or demodulator and that is implemented through a shared resource approach. This approach is particularly, though not exclusively, suited for with quadrature amplitude modulated ... JL Koslov,FA Lane,CG Scarpa - US 被引量: 60发表: 1997...
PROBLEM TO BE SOLVED: To provide an AM data multiplex modulated wave signal demodulation circuit that demodulates a base band digital signal from an AM data multiplex modulation signal based on a multiplexed digital modulation wave signal. ;SOLUTION: The demodulation circuit uses an Am modulator to...
and its envelope 3.2 基于 Simulink 的 AM 调制电路及输出波形 3.2.1 AM 调制电路 图 3-3 AM 调制电路 Fig.3-3 AM modulation circuit 7 3.2.2 调制电路参数设置 图 3-4 信号源参数设置 Fig.3-4 Set the source parameter 图 3-5 调制器参数设置 Fig.3-5 Modulator parameter settings 8 图 3-6...
MC34115P - MC34115 CONTINUOUSLY VARIABLE SLOPE DELTA MODULATOR/DEMODULATOR IC MCC BUCKET Model 95 Siemens 24" feeder 150A FXD63B150 N MCC DC Drive Station 125 HP Quad Saw Drive MCD 94V-0 McData ES-1000 ES1000 MCDP-701 MCE-DML DMS-7066 MCE-DML Microwave DMS-7067 MCELROY ROLLING HYDRAU...
detection output signal by an AM modulator 5, this modulated wave signal is subtracted from the AM data multiplexed and demodulated wave signal by a subtractor 6 and a subtraction output is demodulated to the base band digital signal by a data demodulation circuit B based on the data modulating...
AM modulator/demodulatorconfigurable analog building blocksfield programmable analog arraysIn this paper, the design of a power-law function generator and AM modulator/demodulator using configurable analog blocks (CABs) for filed programmable analog arrays (FPAAs) is presented. To maintain high frequency...