0479-8023(2012)03-0405-06

Abstract— We propose a simple speech compression algorithm using subband division and ADPCM (Adaptive Differential Pulse Code Modulation) algorithm. Although speech data are stored in a semiconductor memory device, its capacity and the available network capacity are limited. Therefore, it is necessary to compress the data as much as possible. The first is that the reconstructed datum must be understood correctly. Speech signal is compressed with a ratio of 1/4 using the proposed subband division and ADPCM (Adaptive Differential Pulse Code Modulation) algorithm.

求解模型状态空间的程序，包括绘制伯德图、求解特征值等详细程序(Solving the state space program, including drawing Bode diagram, such as the detailed procedures for solving eigenvalue)

地震数据tau-p变换的MATLAB函数，具体参数里面给出，可以参照。地震数据tau-p变换的MATLAB函数，具体参数里面给出，可以参照(Seismic data MATLAB transformation of the Tau-p function, the specific parameters which are given, you can refer to. Seismic data MATLAB transformation of the Tau-p function, the specific parameters which are given, you can refer to )

this file is matlab code that compare several window such as hamming, rectangle ...

导入MATLAB数据后，能对数据进行各种拟合，包括高斯、洛伦兹、高普斯等多种拟合方式(Data fitting )

cdma2000 matlab simulink 卷积编码器 程序(cdma2000)

MT7620 PROGRAMMING GUIDE

该程序基本涵盖了OFDM-16QAM系统传输的全过程，除了调制解调外，有添加循环前缀，加窗的过程。生成图像有各个阶段的时域、频域图，以及发射前后的星座图。(This basically covers the whole process of OFDM transmission- 16 qam system, in addition to the modem, have add cyclic prefix, plus the window procedure. Generate the image at various stages of time domain and frequency domain graph, and before and after the launch of the constellation diagram.)

一个简单的s-function的范例，足够多的说明可以将其作为其他s-function的模板(A simple example of s-function, and a sufficient number of instructions can be used as template for other s-function)

matlab的统计分析方法的源代码，并有举例说明。(methods of statistical analysis matlab source code and examples.)