nonattfil

大地电磁二维正演程序是电磁法的基础编程，首先设置地电断面然后通过正演模拟电磁场在大地中的传播形式来得到地下地质体的电阻率情况，从而得到地下地质体情况(Two-dimensional magnetotelluric forward modeling procedure is based programming electromagnetic method, first set the geoelectric section and then through the forward modeling electromagnetic propagation in the earth in the form to get the subsurface resistivity body condition, resulting in underground geological conditions)

耳蜗实质上相当于一个滤波器组，耳蜗的滤波作用是在对数频率尺度上进行的，在1000HZ下，人耳的感知能力与频率成线性关系；而在1000HZ以上，人耳的感知能力与频率不构成线性关系，而更偏向于对数关系，这就使得人耳对低频信号比高频信号更敏感。Mel频率的提出是为了方便人耳对不同频率语音的感知特性的研究。频率与Mel频率的转换公式为(on logarithm frequency scale, under the 1000 hz, the perception of the human ear and a linear relationship with frequency In more than 1000 hz, the perception of the human ear does not constitute a linear relationship with frequency, and prefer to logarithmic relationship, which makes the human ear is sensitive to low frequency signal is better than high frequency signal. Mel frequency is put forward in order to facilitate the ear of the study of speech perception characteristics of different frequency. For frequency and Mel frequency conversion formula )

histogram operation (eqalization,thershold,....

说明：  压缩包中为美国北卡罗来纳州大学推出的遗传算法优化工具箱GAOT，以方便遗传算法的使用。(Archive for the University of North Carolina introduced the genetic algorithm optimization toolbox GAOT, to facilitate the use of genetic algorithms.)

基于matlab的bpsk的调制 随机信号和载波可根据需要改动(Based on the bpsk matlab modulation random signals and carrier may need to change)

基于matlab编程的，用于仿真光纤折射率传感特性(Simulating the Refractive Index Sensing Characteristics of Optical Fibers)

VBLST译码算法仿真源程序 代码包括了常用的调制和解调方式。(Simulation VBLST source decoding algorithm)

this book review about communication using matlab code

说明：  对一列数据进行各种常用变换 (On a variety of commonly used data transformations)

hmm code algoritm viterbi SpeechRecognition