63535310S4M

OFDM 系统仿真程序源代码，主要用于OFDM系统仿真(OFDM system simulation program source code, mainly used in OFDM system simulation)

Vehicom LTE Link Level Simulator (The LTE link level simulator is a comprehensive simulation software used for algorithm development, performance evaluation and system validation associated with LTE systems. The simulator have Matlab and C versions. The C version simulator consists of optimized algorithms which can be easily transferred to DSP platform. All the functional blocks provide dynamic memory allocation for data blocks and easy settings of parameters offering advanced user flexibility to customized simulation. When compared to other LTE simulation tools such as Steepest Ascent LTE toolbox and IsWireless LTE PHY Lab, our software not only provides a friendly GUI with various settings, user defined input and output data, and open architecture to integrate user defined function blocks, but also integrates our proprietary high-speed channel models for vehicle applications and high-speed trains applications. The The key features of the LTE link level simulator are summarized as below: 1) fast simulation speed, 2) )

PID控制算法：专家PID控制算法以及仿真(PID control algorithm: expert PID control algorithm and simulation)

说明：  这是测定基因序列的matlab程序，测定1/3周期点的峰值(This is the determination of gene sequences of the matlab process to measure 1/3 cycle peak point)

matlab里FFT变换时的频移程序，自动将FFT变化后的数据移到零频两边，方便好用(FFT transform in matlab frequency shift when the process changes automatically after the FFT to the zero-frequency data on both sides, easy-to-use)

matlab mex编程，fft和一些矩阵运算的C实现，linux matlab下编译(matlab mex programming, fft, and some matrix operations C implementation, compiled under linux matlab)

Matlab参考书（word版），分章节，较PDF清晰多了。(Matlab reference (word version), sub-chapters, much clearer than the PDF.)

说明：  matlab 产生带运动和噪声的退化图像(matlab generated with movement and noise degraded images)

从初值出发，先计算y对时间t的导数，得到y的变化速度；求出x对t的导数，得到x随时间的变化速度。然后时间前进一小步h=0.002，同时x和y也都发生一个小的变化，即在原来数值基础上加上时间步长h和变化速度的乘积。如果x到达1或者-1，强制让y发生变化。这个过程不断迭代，得到结果。 (completed chart)

国外高校的关于图像区域生长的算法源码，编写的代码非常紧凑，算法执行效率高(Image region growing algorithm by abroad univertity and the algrorithm level is very high and efficient)