doa_focuss

histogram based code for image retrival

对原始图像 Beauty.jpg进行彩色图像处理，使画面中的以下情况得到改善： 1. Œ 整个画面光线偏暗 2.  画面在色彩上偏紫 3. Ž 皮肤上有很多的雀斑 4.  右下角偏亮(On original image Beauty.jpg, color image processing, the screen in the following situation be improved: 1. Entire screen dark screen purplish color on the skin, many freckles. Right Bright lower corner of)

SVD.奇异值分解代码，在MIMO,与编码中的运用中用到。(English description,english description)

icp算法源代码，主要用于点云拼合，是基于matlab上编写的。(icp algorithm source code, mainly used for point cloud assembly is prepared based on matlab.)

一个凸优化matlab工具箱，可以快速求解凸优化问题，具有很好的效果(A convex optimization matlab toolbox, you can quickly solve the convex optimization problem, with very good results)

Q-learning (Watkins, 1989) is a simple way for agents to learn how to act optimally in controlled Markovian domains. It amounts to an incremental method for dynamic programming which imposes limited computational demands. It works by successively improving its evaluations of the quality of particular actions at particular states. This paper presents and proves in detail a convergence theorem for Q,-learning based on that outlined in Watkins (1989). We show that Q-learning converges to the optimum action-values with probability 1 so long as all actions are repeatedly sampled in all states and the action-values are represented discretely. We also sketch extensions to the cases of non-discounted, but absorbing, Markov environments, and where many Q values can be changed each iteration, rather than just one.

bpsk的数字基带调制与解调，即采用矩形波作为基带信号，并仿真出其误码率。(bpsk digital baseband modulation and demodulation, which uses a rectangular wave as a baseband signal and simulation of its error rate.)

Matlab关于三相全控桥式整流电路的仿真模拟(Matlab simulation on fully controlled three-phase bridge rectifier circuit)

利用DFT分析离散信号频谱的实验。利用FFT分析信号 x[k]=cos(3pik/8 +pi/4 ) 的频谱；确定DFT计算的参数，绘出其频谱；并进行理论值与计算值比较。(DFT analysis of discrete signal spectrum utilization experiments. Analysis using FFT signal x [k] = cos (3pik/8+ pi/4) of the spectrum determine the parameters of DFT calculations, draw its spectrum and comparing the theoretical and calculated values.)

电网发生三相对称故障时，基于dq变化法的电压跌落检测(Symmetrical three-phase power grid failure, the voltage drop dq transform method based on the detection)