| Software radio is very important in wireless communication system. Adaptive software radio can improve the capability of communication in complexity channel situation. Automatic Modulation Recognition (AMR) of communication signals is very important for adaptive software radio.This paper is focused on the application of pattern recognition in AMR. Several AMR algorithms are discussed which are based on the analysis of spectrum characteristics of the modulation signal,or time_frequency domain analysis, such as Wigner_ville Distribution, Wavelet Transform of communication signals. Some computer simulation to the above algorithms are proposed. |
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