mdsdemo

CORDIC sin cos m-file

这是一个使用hough变换来实现一副图像中直线检测的代码,比较高效而且检测效果很不错(use hough transform to achieve an image line detection code, more efficient and effective detection is pretty good)

This paper describes the problem of voltage sags and swells and its severe impact on non linear loads or sensitive loads. The dynamic voltage restorer (DVR) has become popular as a cost effective solution for the protection of sensitive loads voltage sags and swells. The control of the compensation voltages in DVR based on dqo algorithm is discussed. It first analyzes the power circuit of a DVR system in order to come up with appropriate control limitations and control targets for the compensation voltage control. The proposed control scheme is simple to design. Simulation results carried out by Matlab/Simulink verify the performance of the proposed method.

利用ＤＣＴ变换给图像插入水印信息，配有详细步骤说明( Use of DCT insert watermark to the image, with a detailed description of the steps)

在PID控制中，微分信号的引入可改善系统的动态特性，但也易引起高频干扰。在误差扰动突变时尤其显出微分项的不足。若在控制算法中加入低通滤波器，则可使系统性能得到改善。(In PID control, the introduction of differential signal can improve the dynamic characteristics of the system, but it can also cause high-frequency interference. When error perturbations change abrupt, the deficiency of differential terms especially shows. If the low-pass filter is added to the control algorithm, the performance of the system can be improved.)

说明：  用matlab仿真实现ldpc编解码，BPSK调制, 测定误码率与信噪比的关系(Using matlab simulation to realize LDPC Encoding and decoding, BPSK modulation, and to determine the relationship between bit error rate and signal-to-noise ratio)

用matlab去计算无缺陷的有限周期光子晶体的带隙问题(Using matlab to calculate the defect-free for a limited period photonic crystal band gap problem)

柏林噪声海洋模拟 柏林噪声海洋模拟 柏林噪声海洋模拟 柏林噪声海洋模拟(perlin noise ocean simulation perlin noise ocean simulation perlin noise ocean simulation)

说明：  在MATLAB下实现的图像边缘检测算法，自己编写的算法(matlab edge detection)

这是胡不变矩的经典matlab程序，其实就是不变矩的验证，七阶矩.(This is the classic Hu invariant moments matlab program, in fact, the same moment the validation, seven-order moments.)