The Parameters Extraction Of Communication Signals And Network Recognition Of BP Hierarchical Architecture

Automatic modulation recognition and modulation parameters estimation are key problems in non-cooperative communication systems and Software Defined Radio. Non-cooperative communication is one branch of this field, which is importantly used in civilian and military applications, where it is required to monitor the activities of communication signals in space and intercept the signal information content with little prior knowledge. Software Defined Radio is a key technique in future communications, which require the receiver to work in multi-mode and mufti-band based on a same hardware platform. So it is necessary, to recognize the modulation type and estimate the modulation parameters automatically. The main works in this paper can be summarized as follows:...