coord_change

说明：  南京航空航天大学的关于波束形成算法及其新进展的PPT,适合初学者学习了解(This is the PPT about alograthms of beams-forming from NUAA. This is a very good start for students who are not familiar with this area. )

F16开环动力学模型，采用C语言编写的MATLAB S函数。输入为油门及3个舵面共四个控制量，以及系统低阶、高阶选择器。前缘襟翼模型内部自动调节。输出为12个状态量以及油门大小。采用欧拉角坐标系。(F16 open-loop dynamic model, using the C language MATLAB S function. Throttle input, and three of four rudder control volume, and system low, high selector. Automatically adjust the front flap inside the model. The amount of output for the 12 states and the accelerator size. Using Euler angle coordinate system.)

MATLAB遗传算法工具箱,有遗传算法工具箱具体的应用说明(MATLAB genetic algorithm toolbox, a specific application description of the genetic algorithm toolbox)

hide test in image using lsb in matlab

衰落信道仿真 function r = rayleigh( fd, fs, Ns ) r = rayleigh(fd,fs,N) A Rayleigh fading simulator based on Clarke s Model Creates a Rayleigh random process with PSD determined by the vehicle s speed. INPUTS: fd = doppler frequency set fd = v*cos(theta)/lambda v = velocity (meters per second) lambda = carrier wavelength (meters) theta = angle w/ respect to tangent (radians). fs = sample frequency (Samples per second) Ns = number of samples of the Rayleigh fading process to produce OUTPUTS: r = row vector containing Ns samples of the Rayleigh fading process Author: Matthew C. Valenti Mobile and Portable Radio Research Group Virginia Tech For Academic Use Only (Fading channel simulation)

针对交交变频器 除产生5、7、11、13次谐波外，还产生旁频，谐波内容多的主要特点，进行了 滤波器装置方案选择，确定滤波器形式，并对滤波器参数进行了工程设计计算。 TCR+FC型Svc通过采用单独的相一相控制能调节三相电源的容抗和感抗来 补偿轧机系统的不平衡，从而降低35KV供电电网的损耗。(In addition to produce5,7,11,13 harmonic, also produced by frequency, harmonic content of main feature, undertook Filter device selection, determine the filter, and filter parameters for the calculation of Engineering design. TCR+FC Svc through the use of separate phase to phase control can adjust the capacitance and inductance for three-phase power supply Compensation system of rolling mill of imbalance, thereby reducing the power consumption of 35KV. )

录制一段个人自己的语音信号，并对录制的信号进行采样；画出采样后语音信号的时域波形和频谱图；给定滤波器的性能指标，采用窗函数法和双线性变换设计滤波器，并画出滤波器的频率响应；然后用自己设计的滤波器对采集的信号进行滤波，画出滤波后信号的时域波形和频谱，并对滤波前后的信号进行对比，分析信号的变化；回放语音信号；最后，设计一个信号处理系统界面。(Record a person s own voice signal, and recording the signal sampling draw sample after the speech signal time-domain waveform and frequency spectrum given filter performance indicators, using a window function method and the bilinear transform filter design and draw the frequency response filter then use the filter of their own design for the signal acquisition filtering, after filtering the signal to draw the time-domain waveform and spectrum, and filtering of signals before and after contrast, analysis of signal changes playback of voice signal Finally, the design of a signal processing system interface.)

MATLAB是一门计算机编程语言,取名来源于Matrix Laboratory,本意是专门以矩阵的方式来处理计算机数据,它把数值计算和可视化环境集成到一起,非常直观,而且提供了大量的函数,使其越来越受到人们的喜爱,工具箱越来越多,应用范围也越来越广泛 (MATLAB is a computer programming language, name comes from Matrix Laboratory, is meant to the Matrix of the special way to deal with the computer data, it put the numerical calculation and visual environment integration to together, very intuitive, but also provides a lot of function, make it more and more popular, more and more toolbox, application more and more widely )

对于非平稳信号，用emd分解后，进行hibert变换后，输出时频三维图，(Output frequency of the three-dimensional map)

Scatter plot for large data set (tested for 10 million points)