chepai

The code introduces postcoding technique in ofdm system that results in a much less complex mechanism and provide similar result as are obtained with precoded system. In this technique the coding part is done after the ifft block that is initially the data is converted to frequency domain n then coding is introduced.

Computational Building Physics and Systems 5

this code is for interpolationS27Q

介绍了霍夫曼编码及字典码，同时编写了两者的编码程序，包括了报告(Huffman coding and the dictionary describes the code, while the preparation of both coding procedures, including a report)

1、观察采样引起的混叠。 2、判别离散时间系统的时不变性。 3、利用卷积计算信号通过FIR滤波器的输出，并观察输出信号的input-on暂态、input-off暂态和稳态阶段。 (One to observe the sampling due to aliasing. 2, determine the time invariant discrete-time systems. 3, the use of convolution calculation of the signal through the FIR filter output, and observe the output signal of the input-on transient, input-off transient and steady-state phase.)

water marking of an image.you can use the code.please try to run the code

dct image steganography

keplerslasw of plantery motion

惯导系统初始对准的Matlab源代码，对于惯性导航系统的初始对准算法研究有帮助(INS initial alignment of the Matlab source code for inertial navigation system to help the initial alignment algorithm)

C++ version (OpenCV) of the Matlab built-in functions accumarray.m and gradient.m