OFDM

基于dct变换，实现matlab图像压缩源码，很有意思(Based on DCT transform, matlab image compression source code, very interesting)

改变声音信号采样频率。应分别考虑由低到高和由高到低，最好包括声音采集和回放等功能。(To change the audio signal sampling frequency. Should be considered separately from low to high and high to low, preferably including audio capture and playback functions.)

inverse dynamic of robot.nt to upload source code, you can

ofdm signal generation

圆孔夫琅禾费衍射和瑞利判据，研究衍射图样和爱里斑(round hole Fraunhofer diffraction and Rayleigh criterion.I hope it is useful for student。 )

Circles We can extend the Hough transform to other shapes that can be expressed parametrically. For example, a circle of fixed radius can be described fully by the location of its center (x, y). Think of each feature (edge) point on the circle as saying, ”if I’m on the circle, the center must be in one of these places”. It turns out that the locus of these votes is itself a circle. But what about circles of unknown size? In this case, we need a third parameter: the radius of the circle. So, we can parameterize circles of arbitrary size by (x, y, r). Instead of casting votes in a circular pattern into a two-dimensional accumulator, we cast votes in circles of successively larger size in a three-dimensional accumulator.

约束优化问题： minRosen(Rosen梯度法求解约束多维函数的极值)(算法还有bug) minPF(外点罚函数法解线性等式约束) minGeneralPF(外点罚函数法解一般等式约束) minNF(内点罚函数法) minMixFun(混合罚函数法) minJSMixFun(混合罚函数加速法) minFactor(乘子法) minconPS(坐标轮换法)(算法还有bug) minconSimpSearch(复合形法)(Constrained optimization problem: minRosen (Rosen gradient method for solving constrained multi-dimensional function of extremes) (algorithm also bug) minPF (solving linear equations outside the penalty function method constraints) minGeneralPF (outside the penalty function method for solving general equality constraints) minNF (internal penalty function method) minMixFun (mixed penalty function method) minJSMixFun (mixed penalty function acceleration method) minFactor (multiplier method) minconPS (coordinate rotation method) (algorithm also bug) minconSimpSearch (complex method))

image mosaicing functions

一个关于遗传算法的例子，亲测有效。在理解算法实现基础上就可以很好理解代码啦，主程序直接运行gamain就可以了。(An example of genetic algorithm is given, which is effective. On the basis of understanding the implementation of the algorithm, we can understand the code very well. The main program can run gamain directly.)

改进的pso算法（3个m文件和一个说明文件）： 本算法实现Clerc and Kennedy 2002年对pso算法的重要改进-Improved PSO algorithm (Improved PSO algorithm (3 m documents and a note): This algorithm Clerc and Kennedy 2002 years, the importance of improved PSO algorithm )