zengqiang

3G/B3G核心技术丛书-mimo关键技术，王裕民编 附录的源程序(ofdm mimo simulation)

说明：  关于滤波器的源码 能够在MATLAB上运行(On the source filter can be run in MATLAB)

此程序实现构造Daubechies小波基(this program structure Daubechies wavelet)

运用ga_pso算法对svm参数优化运用ga_pso算法对svm参数优化运用ga_pso算法对svm参数优化(Use ga_pso parameter optimization algorithm svm svm use ga_pso algorithm parameter optimization using ga_pso parameter optimization algorithm svm)

说明：  Hilbert变换工具箱，可用于单分量信号的解调，求取瞬时幅值和瞬时频率(Hilbert transform toolbox, which can be used for demodulation of single component signals, to calculate instantaneous amplitude and instantaneous frequency)

一个基于空时分组编码的MIMO_OFDM通信系统的仿真设计。此系统包括QPSK调制解调，IFFT调制，空时编解码，基于训 练符号的信道估计等通信模块。(A space-time block coding based on the MIMO_OFDM communication system simulation design. This system consists of QPSK modulation and demodulation, IFFT modulation, space-time coding and decoding, based on training symbols such as communication channel estimation module.)

对给定的txt文件进行Huffman编码和解码，并加以分析，采用无记忆信源编码方式(For a given txt files Huffman encoding and decoding, and analyzed, using non-memory source coding method)

说明：  这个程序用于语音段的过零率求取，基于matlab，可以用来做端点检测。(The program segment for voice strike zero rate, based on matlab, can be used for endpoint detection.)

维纳滤波进行语音信号的增强，是学习现代信号处理和语音增强的很好的学习程序。(Wiener filtering speech enhancement is a good learning process for learning modern signal processing and speech enhancement.)

利用PID控制算法实现曲线的拟合跟踪，分别对阶跃曲线和正弦曲线进行控制，并比较拟合的误差曲线(Using the PID control algorithm curve fitting tracking, respectively, on the step and sinusoidal curve control, and compare the error curve fitting)