hurstComputerV1[1].0-pcode.rar

matlab code for EMT field theory project stating mashgrid quiver

余弦波是渐变的，当ωt+φ的取值变化量很小时，Y的变化量也是很微小的。余弦波的这一特性保证了嵌入水印后相邻字符灰度值差别不大，人眼无法识别，从而保证了水印的不可见性和图像质量。(Cosine wave is gradual, and when ωt+ φ values variation is very small, Y amount of change is very small. Cosine waves This feature ensures that watermarked gray value of adjacent character is not very different, the human eye does not recognize, thus ensuring the invisibility of watermark and image quality.)

数学问题的优化matlab算法实现，线性优化等问题(Matlab optimization mathematical problem algorithm, linear optimization problems)

阵列处理作业，最优权（mvdr）加cheb窗（可自定义）性能对比(Performance comparison of the optimal weight (mvdr) cheb window)

这个程序就是最基本的粒子群优化算法程序，用Matlab实现，非常简单(This program is the most basic particle swarm optimization algorithm, using Matlab to achieve, is very simple)

设计一个阻带下限0.45*pi 阻带上限0.8*pi 通带下限0.55*pi 阻带上限0.7*pi 通带衰减0.15dB，阻带衰减40dB，分别用汉宁窗汉明窗凯瑟窗布莱克曼窗设计滤波器，对比分析各方法优劣(Design a stop-band limit 0.45* pi stopband limit 0.8* pi Passband lower limit 0.55* pi stopband limit 0.7* pi Passband attenuation 0.15dB, stop-band attenuation of 40dB, respectively Hanning Hamming window Kaiser window Blackman window filter design, comparative analysis of the pros and cons of each method)

相机检校的另一方法Tsai，在MATLAB中实现，可以与张正友的方法作比较。(Another method of camera calibration Tsai, in MATLAB to achieve, you can and Zhang are the Friends of the method for comparison.)

melfiltter function use for speech recognition and have mel filter bank

本文设计了低噪声LNA放大器，较好了达到了指标，但是仍需改进。(This article is designed LNA low-noise amplifier has achieved a good target, but still needed improvement.)

这是采用场磨式电的场仪在雷电监测预警系统中的研究与应用，很有参考意义。(This is the use of field mill type electric field instrument in lightning monitoring and warning system in the research and application, great reference significance.)