When I design the Receiver Module which is based on the amplitude demodulation and the USRP module,I found the receive signal throught the bandpass filter don't stable.I didn't how to modify it,please tell me where is wrong and how to modify.
Am must be acquired off the LO frequency due to a DC offset filter that distorts AM when it is acquired at DC. I recommend using the LO property node to set the LO to a nearby frequency and the center frequency parameter to your center Frequency. With that combination the DC offset filter should be avoided.
You means to replace the "Carrier Frequency" use the "LO property node " or add the "LO property node " in the front of the "Carrier Frequency" or what else? I don't konw how to do it ,please guide me modify it,think you!
