The Research Of Automatic Modulation Recognition Based On RBF Neural Network In Software Radio

Software radio is to constitute an opening, standardization and modularization general hardware platform, and based on which accomplishing as many as possible communication functions through software. Its final purpose is making the communication system break away from the constraint of the systematic structure of the hardware and to make evolution more convenient and easily. Now the environment of the wireless communication is becoming more complicated with the development of the communication technology. Many signals modulation modes are used simultaneously in the communication systems. The traditional communication is in accordance with an appointed modulation pattern. So the range of its application is very limited. The modulation recognition technology of communicational signals is to find the modulation format and modulation parameters of the received signals in the noisy environment. So it is not only the first step of correct demodulation...