Digital Signal Demodulation Method For Software Receiver Based On Wavelet Transform

Signal demodulation methods about software radio receiver are researched in the paper and a new demodulation method for digital modulation signals was put forward.Above all in the paper the configuration about the common software radio receiver was analyzed and its strongpoint and shortcoming was given. Then based on theory about detecting break points about signals, a new demodulation digital signals such as 2PSK, 2ASK and 2FSK was put forward based on wavelet transform. Emulating through Matlab software and comparing to the synchronization demodulation method, the method was testified to be in effect.The method predigested demodulation blocking hardware's struction in software radio receiver and can be used in many digital modulation types. It would be a good researching and exploring.