FSK

The files included implement the M3 Enigma machine. Rotors.m implements the GUI and enigma.m implements the cipher substitutions. The implementation can be used as an aid to teaching the enigma machine. Also, the source can be used to show how to implement an enigma machine. The files are thoroughly commented and the application can run in MATLAB by just typing rotors

this is the source code for pixel value difference

A peak fitting program for time-series signals(A peak fitting program for time-series sig nals)

时频分析方法提供了时间域与频率域的联合分布信息，清楚地描述了信号频率随时间变化的关系。(Time-frequency analysis method provides a time-domain and frequency domain, the joint distribution of information that clearly describes the signal frequency versus time relationships.)

Centroid extraction MATLAB program for star point extraction algorithm

它详细介绍了如何利用ZXing编写一个二维码的编码程序(It details how to use ZXing to write a two-dimensional code encoding process)

说明：  MATLAB小波分析___张德丰——源代码，对于学习小波分析很有帮助。(MATLAB Wavelet Analysis)

研究表明超高斯分布更加贴近语音信号的实际分布，然而语音信号很难用单一的概率密度 函数准确描述，针对这一情况，提出了一种用超高斯混合模型对语音信号幅度谱建模的新方法，并推导了 基于此模型的幅度谱最小均方误差估的估计式。仿真结果表明：与传统的短时谱估计算法相比，该算法不 仅能够进一步提高增强语音的信噪比，而且可以有效减小增强语音的失真度，提高增强语音的主观感知 质量。 (Recent research indicates that the speech spectral amplitude distributions could be fairly described with super-Gaussian probability density function. However, the complexity of speech signal determines that the distribution statistics ofspeech signal could not be well described by single simple function. Thus a super-Gaussian mixture model for speech spectral amplitude is proposed, and with this model, a minimum mean-square error (MMSE) estimator for speech signals spectral amplitude is derived. The simulation results show that this algorithm based on Gaussian and super-Gaussian speech model could achieve better noise suppression and lower speech distortion as compared with the conventional short-time spectral amplitude estimation algorithm. )

说明：  带数据的定位算法，包含chan、tdoa、最小二乘的比较(Location algorithm with data)

相关法时延估计的matlab仿真，能对任意wave文件使用，并进行误差分析(Correlation time delay estimation of matlab simulation, can use any wave file and analyze the errors)