morphimage

简单的模拟锁相环仿真，基于simulink平台使本地震荡频率跟上接收到得频率(analog pll simulation,based on simulink)

说明：  通信系统的Matlab代码，包括通信原理书中的大多代码(Matlab code communication systems, including most of the book Communication Theory code)

内弹道计算程序，准确描述了内弹道过程，通俗易懂(Interior ballistics calculation program, an accurate description of the interior ballistics process, straightaway)

说明：  针对低信噪比环境下基于能零比的端点检测方法准确率低的问题,提出了一种结合谱减法和短时零熵法的端点检测方法。首先通过功率谱减法对带噪语音进行降噪处理,然后结合短时平均过零率特征与谱熵特征,构造出一种新的语音参数,即短时零熵,最后运用双门限算法进行端点检测。实验结果表明该方法在复杂噪声环境下具有良好的端点检测性能,降低了检测的误判率。(To solve the problem of low accuracy of endpoint detection method based on energy zero ratio in low SNR environment, an endpoint detection method combining spectral subtraction and Short-term zero entropy method is proposed. Firstly, the noise is reduced by power spectrum subtraction, then a new speech parameter, short-time zero entropy, is constructed by combining the short-time average zero crossing rate and spectral entropy. Finally, the double threshold algorithm is used for endpoint detection. The experimental results show that this method has good performance of endpoint detection in complex noise environment, and reduces the rate of detection error.)

说明：  一个OFDM仿真程序，包含matlab源文件。(An OFDM simulation program, including the matlab source.)

最优化控制及其matlab实现，里面有很多程序的代码，很实用，希望大家多交流学习(Control and optimization matlab realize, there are many program code, very useful, I hope to learn more exchanges)

无线通信抗衰落，合并器输出信噪比的概率密度函数比较。选择性合并，最大比率合并，等增益合并的概率比较(Slow Fading Plot Outage Probabiloty vs SNR for maximum ratio combining, coherent combining and antenna selection.)

sislab使用说明书，sislab是matlab中重要的地震处理工具箱！(sislab)

说明：  基于matlab写的对人体的分割程序，这个是很有用的，尤其是对那些有一定matlab水平的人。(Based on matlab written procedure for the carving on the human body, this is useful, especially for those who have a certain level of people matlab.)

用MATLAB的灰色预测GM（1，1）模型 (Grey with a MATLAB-GM (1,1) model)