使用起来非常方便，实现了对10个数字音的识别，关于超声波倒车雷达测距的。- Very convenient to use, To achieve the recognition of 10 digita

matlab code for dwt.i attached here the matlab code for dwt of an digita image.After getting decomposition value,i will use this for steganography purpose.

这个 matlab 代码仿真了M-QAM的传输。M的取值不同，调制方式分别为4QAM，16QAM，64QAM等。传输信道为AWGN信道，能出误码率曲线(Digital Unit Impulse Discrete Harmonic Signals and their Linear Combination Harmonic Signal with Exponential Envelope. Periodic Sequence of Rectangular Impulses Mixture o