04470074

相关峰搜索捕获,为随机PN码的生成，相关处理，峰值比较。(correlation peak search )

MATLAB的基本操作实现：P0201：MATLAB赋值，MATLAB中的for循环，MATLAB中的for循环和if条件，MATLAB图像处理的基本操作，MATLAB高级图像处理操作，根据RGB图像创建一幅灰度图像，二值图像的取反操作，用imshow函数显示图像，在同一个窗口内显示两幅图像(MATLAB' s basic operations to achieve: P0201: MATLAB assignment, MATLAB in the for loop, MATLAB in the for loop and if conditions, MATLAB image processing basics, MATLAB high-level image processing operations, according to RGB image to create a grayscale image, two negated the value of the image operation to display images with the imshow function, in the same window display two images)

MATLAB-stat，this is a programme for matlab

窗函数法设计的带通滤波器。仅供新手参考的呦(filter)

A MLP code with backpropagation training algorithm designed for aproximation of functions problems.

这是一些关于人脸识别的MATLAB程序，主要对人脸清晰度的处理，可以使图形信息更加的清晰，希望对大家有好的方面(This is some of the MATLAB program on the face recognition, mainly on the treatment of facial definition, can make information more clear graphics, I hope all of you there are good aspects of)

截取一段音频信号作为输入信号，分别通过低通，高通和带通滤波器，比较滤波效果。(Interception of an audio signal as an input signal, respectively, through a low pass, high pass and band-pass filter, compare filtering effect.)

使用四种方法实现对轴承振动数据的自回归谱（AR）分析，并带有数据(Using four methods to realize auto regressive (AR) analysis of the bearing vibration data, and have the data)

在一个移动通信系统中，发射信号是一个未调制的音频x(t)=cos(2πft)，其中f=f0+fi。设标称载波为f0=1GHz，并设fi =512Hz。假定移动用户在一个繁忙的高速公路上距离基站l公里处的地方，从开始从每小时60公里的速度开始，其速度（在0.01秒的时间间隔内测量）以1/2的概率随机的增加或减少1/10公里每小时。试仿真移动用户在这2s的时间间隔内所接收到的信号(及其频谱)。接收信号可以表示为： y(t)=a(t)Cos[2π(fo+f1)(t-△t)] 式中 △(t)=d(t)/c 且 a(t)=k/d2(t) 在上面的表达式中d(t)是在t时刻基站与移动用户的距离，c是光速，△(t)是传播延迟，而a(t)是信号在t时刻的衰减，并假设在这2s内a(t)是一个常数。利用复低通等效模型来进行仿真。(In a mobile communication system, the transmitted signal is an unmodulated audio x (t) = cos (2πft), where f = f0+ fi. Let nominal carrier of f0 = 1GHz, and set fi = 512Hz. Assume that mobile users on a busy motorway station l kilometers place, starting the beginning of 60 kilometers per hour, the speed (measured in 0.01 second interval) to increase the probability of a random 1/2 or reducing 1/10 km/h. Simulation test signal which the mobile subscriber in the 2s time intervals of the received (and its spectrum). The received signal can be expressed as: y (t) = a (t) Cos [2π (fo+ f1) (t- △ t)] Where △ (t) = d (t)/c And a (t) = k/d2 (t) In the above expression, d (t) at time t is a base station and a mobile user s distance, c is the speed of light, △ (t) is the propagation delay, and a (t) is the attenuation of the signal at time t, and assuming that 2s within a (t) is a constant. Using complex low-pass equivalent model for emulation.)

4qam，16qam，64qam在高斯信道下的误码率仿真程序(4qam, 16qam, 64qam under Gaussian channel BER simulation program)