ZANTAI

信号处理技术源代码系列，版权为原作者所有，使用者与原作者联系。(Signal processing technology source code series, the copyright for the original author of all, the user associated with the original author.)

将含有高斯白噪声的输入信号通过线性系统后（带阻滤波器）的输入、输出前信号的频谱、功率谱对比。同时给出了线性系统特性(Gaussian white noise, containing the input signal by a linear system (bandstop filter) of the input, before the output signal spectrum, the power spectrum of contrast. Also gives a linear system characteristics)

关于端点检测的几种方法，语音样本是自己录制的，对传统算法做了一些改进，加入了去噪，去噪之后再进行端点检测，均调通 vad0303：自己设置调整门限为一定值 vad0310：根据能量值和过零率设置门限，自适应门限值 vad0310_2：基于比例因子的门限自调整 vad0310.m加入了噪声，端点检测前都噪声进行了处理 entropy.m：基于自适应子带频谱熵的稳健性语音端点检测 可用于语音增强及端点检测 dbdoor.m：双门限算法，用于语音端点检测。可以通过调整门限值，并加入门限自适应算法，实现语音端点检测(Several methods on endpoint detection, recording their own voice samples, the traditional algorithm has made some improvements, adding a de-noising, and then after de-noising endpoint detection are transferred through)

利用支持向量描述算法（SVDD）做异常点检测(Using support vector description algorithm (SVDD) to detect outliers)

sir/mam, i have added some matlab source codes,in turn provide some required matlab source codes

本代码使用matlab工具实现了一幅图片的位面图提取，且实现了在某个位面上加密信息、恢复信息的功能。并给出三幅图片的运行结果展示。(This code uses the matlab tool to achieve a picture of the bit plane map extraction, and the realization of the encrypted information in a bit plane, the function recovery information. And gives the results of running three pictures show.)

快速转换的矢量/数字字符串的日期。可选的输入令牌/ s的字符串中的日期/时间控制：多个输入令牌可以用来创建多个输出字符串。 令牌提供使用ISO 8601的风格的日期，或单一的日期值。(The rapid conversion of the vector/digital string date. Optional input token/s string date/time control: a plurality of input tokens can be used to create multiple output string. The token is provided using a ISO 8601style date, or a single date value.)

萤火虫算法的matlab程序，对初学者理解萤火虫算法有很大的帮助。(Firefly algorithm matlab program, the algorithm is of great help for beginners to understand fireflies.)

说明：  Matlab离散频谱比值校正法程序，适合相关专业毕业设计使用(Matlab discrete spectrum the ratio of correction procedures for the use of graduate design-related)

PCM linear system designed on Simulink