Junior Member level 2
Obverously, we can reduce the out band noise by adding band pass filter, especially we can use the elecllent filter like hight temperature superconductor filter. But how can we improve the the signal in the pass band by reduce the noise in the pass band? First, can you tell me nore information about how the noise in the pass band happen? Second, can we reduce the noise in the RF system? If not, where can improve it, as the signal down to base band then improving it by DSP technology? Thanks for your help.