avghst08072012

根据轨道不平顺的实测数据进行TQI值的计算统计分析(TQI value is calculated according to a statistical analysis of the measured data track irregularity)

常用计算机程序进行压缩编码的matlab实现。包括：DM编码、变换编码（temp）、算术编码、行程编码、Huffman编码、线性预测编码和一个近似的JPEG编码过程，性能已经达到temp1算法。(A common computer program for the compression of encoding Matlab implementation. Including: DM encoding, encoding transform ( tHFPlD ), arithmetic encoding, encoding, encoding, Huffman encoding, linear prediction and an approximation of the JPEG encoding process, the performance has reached hxhpCAQ algorithm.)

空间小目标检测程序，采用TBD方法检测跟踪空间弱小目标（需原始数据）(The program for detecting small target in the space)

2个不同调制方式的MATLAB仿真程序，是QPSK和QAM的，都非常好(Two different modulation of the MATLAB simulation program is QPSK and QAM, are very good)

正交频分复用（OFDM）是一种特殊的多载波传输技术。它可以有效地对抗多径衰落，能够以很高的频谱利用率来实现高速数据传输。分析介绍了OFDM系统的基本原理及系统性能，以Matlab为开发平台，仿真了OFDM系统的误码率，仿真结果表明OFDM系统在较低信噪比下也具有较好的性能(Orthogonal Frequency-division Multiplexing（OFDM） is a special kind of multi-cartier transmission technology. It can effectively overcome multi-path fading and increase the spectral usage efficiency to implement high-speed data transmission. This paper analyzes the basic principle of OFDM system and system performance, and simulates the Bit Error Rate （BER） of OFDM system on the platform of Matlab. The simulation results show that the OFDM has a good performance.[)

用矩形窗设计线性相位FIR低通滤波器,给了源代码，已经调试过了。其中要用到一个函数myfreqz要自己编，在这也附上其代码。希望对大家有用。(Rectangular window with the design of linear phase FIR low-pass filter, to the source code, have been debug. To use a function which myfreqz to own, in that its code is also attached. Hope useful for everyone.)

MATLAB_SIMULINK在电力系统工程仿真中的应用，本书对电力系统仿真的各元器件进行了详细的介绍，同时采用大量案例，学习simulink在电力系统仿真很容易上手。(MATLAB_SIMULINK in power systems engineering simulation applications, this book on the power system simulation carried out for each component in detail, while using a large number of case study in the power system simulation simulink very easy to use.)

大学教材中数值计算引论中的matlab程序(University textbook Introduction to the numerical calculation matlab program)

说明：  使用EEMD对故障信号进行分解，提取不同imf的能量熵，有数据可直接运行。(EEMD is used to decompose the fault signals, extract the energy entropy of different IMF, and the data can be operated directly.)

说明：  利用matlab的GUI功能编写的用于图像处理的代码。包括灰度化/对数指数变换/加噪声/平滑滤波/锐化/几何变换等。(Using the GUI function of MATLAB to write the code for image processing. Including graying / logarithmic exponential transformation / noise / smooth filtering / sharpening / geometric transformation, etc.)