相当好的adpcm解压缩源码，C++,调用时注意数据保存的类型及大小-Very good to the adpcm decompress the source, and attention to the type and size of the data saved C++, call

neural network ,Spectrum prediction in the cognitive radio system attracts more and more attention. It can predict future spectrum holes to save energy of spectrum sensing and to improve the efficiency of spectrum access.