SPA

that is useful code for communication

交互式选取生长起始点，将感兴趣部分分割出来。(Select starting point for interactive growth, will be interested in part from it.)

说明：  多小波图像压缩处理，开头程序，呵呵，需要继续写才能发表全面(Multiwavelet image compression processing, the beginning of proceedings, what was the need to continue to be fully released)

选取CDMA通信系统中的接入信道部分进行仿真与分析。首先，通过学习相应的理论知识，熟悉接入信道实现的过程，对每一步的原理有了较深的理解，同时，也对MATALB软件进行熟悉和了解，对MATLAB软件中的SIMULINK部分及其内部的CDMA模块用法和参数设置进行熟悉，然后运用MATLAB软件对接入信道部分进行设计，并逐步地对各个模块进行分析、仿真与验证。目的是通过毕业设计工作熟悉现代无线通信系统的基本构成与基本工作原理-CDMA (communication system to select the access channel simulation and analysis of parts. First of all, by learning the theory of knowledge, familiar with the access channel to achieve the process, with each step deeper understanding of the principle, at the same time, but also familiar with the software MATALB and understanding of the MATLAB software and its internal part of the SIMULINK use of the CDMA module and parameter settings are familiar with, and then use MATLAB software to access parts of the design of channel and step by step analysis of each module, simulation and verification. The purpose of design work through graduate familiar with the modern wireless communication systems constitute the basic and fundamental principle,)

Due to an increase in demand for and questions about direct disk access for Micrososft platforms, and due to the fact that Microsoft has no API for direct disk access, I am releasing this library much earlier than I intended at that start. I am still working on this code. (Due to an increase in demand for and questio ns about direct disk access for Micrososft plat forms, and due to the fact that Microsoft has no API for d Direct disk access, I am releasing this library much earlier than I i ntended at that start. I am still working on this code.)

Teager能量算子，一种非线性算子，增强冲击成分分量(Teager energy operator，a nonliner operator ,it can enhance the impact component)

用α-β滤波器结合卡尔曼滤波器对相位差及其变化率数据进行处理,提高数据的测量精度,从而为进行机载单站无源定位提供高精度数据.给出了误差均方差作为精度指标.(Combined with the α-β filter Kalman filter and the rate of change of phase data processing, improve the measurement accuracy of the data, thus providing high-precision data for the purpose of Airborne Passive Location. Gives the mean square error as accuracy specifications.)

本文件为.m的格式，直接在matlab编译器中进行编译即可。 功能：用均匀圆阵MVDR方法进行宽带波束形成 目的：通过此程序展示均匀圆阵MVDR算法宽带波束形成图 关键词：MVDR，自适应，均匀圆阵(Circular Pattern in Matlab)

说明：  轨道动力学的一些有关算法，包括拉格朗日系数计算，轨道根数求解等(Some algorithms of orbital dynamics, including calculation of Lagrange coefficients, solution of orbital elements, etc.)

均匀分配点，可以用来实现均匀分配点座标。　　　　(Can be used to achieve uniform distribution of point coordinates)