hmmselforiginal

常见的流形学习方法LDA和LLE,此程序经过调试运行！(Manifold learning methods common LDA and LLE, this program after commissioning!)

说明：  一个对统计数据做主成分分析的小程序，在Matlab环境下可以对需要统计的数据快速得到其个主成分分量。(An analysis of statistical data elements applet call the shots in the Matlab environment for statistical data on the need to quickly get the two principal components.)

it is choas for optimazation0

实现了彩色图像的RGB和HIS模型的互换(Achieved the RGB and HIS color image exchange model)

说明：  使用matlab语言编程的鱼群算法对测试函数进行寻优测验(UsingFish swarm algorithm programmed by MATLAB language to test the optimization of test function)

uses the message signal X to modulate the carrier frequency Fc (Hz) and sample frequency Fs (Hz), where Fs > 2*Fc. FREQDEV (Hz) is the frequency deviation of the modulated signal.

脉冲编码调制（PCM，Pulse Code Modulation）是一种将模拟语音信号转换成数字信号的编码方式，从数学上来看，量化过程就是把一个连续幅度值的无限数集合映射成一个离散幅度值的有限数集合，编码就是用一组二进制数来表示这些映射后的有限数。 国际标准化的PCM采用折叠二进制码，符合长途电话质量。根据量化方法的不同，PCM 可分为均匀量化PCM 和对数PCM 两大类，对数PCM中，A律和μ律编码都已被定为国际标准。 本程序实现了A律、μ律以及均匀量化三种PCM，并带有GUI界面，方便使用。可以计算编码后的码率、运行时间以及最小均方误差。(Pulse Code Modulation (PCM, Pulse Code Modulation) is an analog voice signal into digital signal encoding, from the mathematical point of view, the process is to quantify the magnitude of the value of an infinite number of continuous mapping into a discrete set of the limited range of values number set, code is a set of binary digits, said after a limited number of these maps. By folding the International Standardization of PCM binary code, in line with long-distance telephone quality. According to the different quantitative methods, PCM can be divided into uniform quantization PCM PCM and the number of two categories, on the number of PCM, A law and μ-law code have been designated as international standards. A law implemented in this program, μ law and the uniform quantization of three PCM, with a GUI interface, easy to use. Encoded bit rate can be calculated, running time and minimum mean square error. )

椭圆带通滤波器设计，根据椭圆原型滤波器，进行双线性变换和低通转带通，获得所需滤波器(Elliptic bandpass filter design based on elliptic prototype filter, the bilinear transformation turn bandpass and low-pass, to obtain the desired filter)

大津法实现，将灰度图像二值化，便于图像的后续处理。(Binary image dajin method )

模拟数字信号进行matlab的FFT运算。对频谱进行对数谱和功率谱的转换。(Analog and digital signal matlab the FFT operation. The number of the spectrum of the spectrum and power spectrum of the conversion.)