kongzaijianlidianya

pitch 的相关程序，自己编写的，可以条用，很好的，赶快下吧(pitch of the relevant procedures, their preparation, can be used, very good, quickly, are you)

Programs for the book Advanced Engineering Mathematics using MATLAB, 2ndEd.

Black and white Image contrast enhancement.

Matlab数字信号处理工具箱 MATLAB已带有数字信号处理工具箱，但不少数字信号处理学者又发展出一些数字信号处理的函数，例如我们会常用到ideal_lp、Hr_type1、dft、idft、Circonvt、freqz_m，...等等，《数字信号处理---使用MATLAB》一书提供了这样的工具箱，内容如附图，工具箱在附件中。(Digital Signal Processing Toolbox Matlab)

该程序实现灰度图像分段线性变换，Matlab实现(Gray-scale image of the process to achieve sub-linear transformation, Matlab to achieve)

一个KKV标准弹道仿真程序，仿真了KKV在中段拦截TBM的弹道。供大家参考。下面还会上传其他方法仿真的程序。(KKV standard ballistic simulation program, the simulation of KKV in the middle of the TBM interception trajectory.For your reference.The following simulation program also upload other methods.)

直接序列扩频（Direct Sequence Spread Spectrum）工作方式，简称直扩方式（DS方式）。就是用高速率的扩频序列在发射端扩展信号的频谱，而在接收端用相同的扩频码序列进行解扩，把展开的扩频信号还原成原来的信号。(irect Sequence Spread Spectrum (Direct Sequence Spread Spectrum), hereinafter referred to as Direct expansion mode (DS). Is a high rate of spread spectrum sequence extension in signal spectrum, and at the receiving end with the same spread spectrum code sequence for expansion, the expansion of the spread spectrum signal back into the original signal. )

Matlab source code for DCT-based watermarking for grayscale images. DCT-based watermark recovering without resorting to the uncorrupted original image. Digital watermarking has been proposed as a viable solution to the need of copyright protection and authentication of multimedia data in a networked environment, since it makes possible to identify the author, owner, distributor or authorized consumer of a document. A new watermarking technique to add a code to digital images is presented: the method operates in the frequency domain embedding a pseudo-random sequence of real numbers in a selected set of DCT coefficients. Watermark casting is performed by exploiting the masking characteristics of the Human Visual System, to ensure watermark invisibility. The embedded sequence is extracted without resorting to the original image, so that the proposed technique represents a major improvement to methods relying on the comparison between the watermarked and original images.

语音增强结果评价框架，其中包括四种语音质量评价方法：信噪比SNR，分段信噪比segSNR，对数谱失真LSD，PESQ。还包括生成设定信噪比语音文件的m文件。也适用于其他领域的语音质量评价。(The speech enhancement results evaluation framework, including the four speech quality assessment method: the SNR signal to noise ratio, segment the SNR segSNR, and the number of spectral distortion of LSD, the PESQ. Also includes the generation of m-files to set the signal to noise ratio voice files. Also applies to other areas of speech quality assessment.)

kriging interpolation code