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使用双线性变化法设计的切比雪夫II型低通滤波器的语音信号处理matlab源程序，课设参考必备！！

基于 CPU 的精确计时器，时钟频率越高，计时越准 -on CPU precision timer, clock frequency, the higher the more time-

用于通信中信道编码-for communications channel coding

卷积码viterbi译码的蝶形算法，可以大大减少卷积码viterbi译码的运算时间-Convolutional codes decoding viterbi butterfly algorithm, convolutional codes can greatly reduce the computing time for viterbi decoding

day la giao trinh ve kenh truyen dan vo tuyen MIMO cua kenh di dong mat dat

VC++与RS232 的串口通信界面，可以实现对下位机的正常通信，界面有编辑框和组合框，Button控件等-VC++ With RS232 serial communication interface, can be achieved for the next bit plane normal communications, interface edit box and combo box, Button controls, etc.

A. 产生一个长为1000的二进制随机序列，“0”的概率为0.8，”1”的概率为0.2；B. 对上述数据进行归零AMI编码，脉冲宽度为符号宽度的50%，波形采样率为符号率的8倍，画出前20个符号对应的波形（同时给出前20位信源序列）；C. 改用HDB3码，画出前20个符号对应的波形；D. 改用密勒码，画出前20个符号对应的波形；E. 分别对上述1000个符号的波形进行功率谱估计，画出功率谱；F. 改变信源“0”的概率，观察AMI码的功率谱变化情况；-have a length of 1,000 random binary sequence, "0" with a probability of 0.8, "a" with a probability of 0.2; B. above zero AMI data coding, and pulse width of symbols width of 50%, waveform sampling rate Symbol rate for the eight times that he painted before the 20 symbols corresponding waveforms (also given before 20 Source sequence); C. HDB3 code switch to depict the former 20 symbols corresponding waveform; D. Miller to switch codes to depict the former 20 symbols corresponding waveform; E. respectively above 1,000 symbols for the power spectrum waveform estimated to depict the power spectrum; F. Change source "0" the probability to observe AMI code changes in the power spectrum;

MIMO-OFDM信道估计，用于最小二乘法和线性最小均方估计方法的性能比较-MIMO-OFDM channel estimation for the linear least squares method and the least square method estimates Performance Comparison

一种基于独立分量分析的改进算法． 可用于瞬时混合的盲分离．-based on independent component analysis algorithm improvements. For transient mixed Blind separation.

about cognitive radio in wireless communication