语音处理，改变声调、语速等，matlab代码

说明：  MSK信号的调制与解调，根据书上的代码进行了修改，非常详细(Modulation and demodulation of MSK signal)

DVB-S2通信链的设计与仿真，使用了LDPC编码以及多种QAM调制方式。(Design and simulation of a DVB-S2 communication chain,LDPC coding and a variety of QAM modulation methods are used.)

这是瑞丽衰落信道模型和莱斯衰落信道模型的代码。(This is the code of Rayleigh fading channel model and Rice fading channel model)

opnet仿真实例，里面有一些现成的例子可供使用。(opnet the simulation, which has some ready-made examples available.)

直扩CDMA系统仿真程序，信道包括加性白高斯噪声，复合加性白高斯噪声，瑞利衰落，频率选择性瑞利衰落，双信道瑞利衰落。(DS CDMA system simulation program, the channel including the additive white Gaussian noise, complex additive white Gaussian noise, Rayleigh fading, frequency selective Rayleigh fading, dual-channel Rayleigh fading.)

This is book about bluetooth programming and other items. Is good for beginerss.

说明：  基于MATLAB的码本预编码算法，包含码本文件和预编码文件(Codebook precoding algorithm based on MATLAB)

说明：  用于快时变信道的信道估计算法，基于BEM实现(The channel estimation algorithm for fast time-varying channel is implemented based on BEM)

有效的分簇算法，实现节点的能量优化和对比(Effective clustering algorithm to achieve node energy optimization.)

为了提高MIMO-OFDM系统的数据传输率和频谱利用率,提出一种新的自适应算法。该算法在保证信道质量所需误码率和总发射功率的前提下,按照各个子载波衰落程度动态地分配比特和功率,使系统的总数据传输速率最大。理论分析得出,该算法降低了系统运算复杂度,能很大地改善系统的整体性能。(In order to improve data transmission rates and spectrum efficiency of MIMO-OFDM systems,this paper proposes a new adaptive algorithm. While the channel transmission quality to meet the requirements of a certain target BER(bit error rate) and total emissive power,according to each sub-carrier decline degree to adjust each sub-carrier modulation method freely,try to minimize the total data rate of system. Theory analysis shows the algorithm can reduce system complexity and improve overall performance of the ...)