abstract:The modulation error ratio or MER is a measure used to quantify the performance of a digital radio transmitter or receiver in a communications system using digital modulation (such as QAM). A signal sent by an ideal transmitter or received by a receiver would have all constellation points precisely at the ideal locations, however various imperfections in the implementation (such as noise, low image rejection ratio, phase noise, carrier suppression, distortion, etc.
Based on the model, the BER Bit ErrorRatioperformance is analyzed for narrow-band modulationandwide-band spread -spectrummodulationof coherent PSK Phase Shift Key...