houghcircle

说明：  矩量法解电场双位方程求线天线表面电流分布，方向图及辐射阻抗(Moment Method Solution of the electric field equation for a double-wire antenna surface current distribution, radiation pattern and impedance)

本文详细介绍了matlab对txt文件数据的导入导出问题(This paper describes a txt file matlab for data import and export issues)

DWT Watermark a example for new beginner, you can edit this file like yours and develop new code for better future

I forgot the name of codes

说明：  根据语音信号的特点给出有关滤波器的性能指标：1）低通滤波器性能指标，fp=1000Hz，fc=1200 Hz， As=100dB，Ap=1dB；2）高通滤波器性能指标，fc=2800 Hz，fp=3000 Hz As=100dB，Ap=1dB；3）带通滤波器性能指标，fp1=1200 Hz，fp2=3000 Hz，fc1=1000 Hz，fc2=3200 Hz，As=100dB，Ap=1dB。用IIR对其分析，最后，利用MATLAB中的函数freqz画出各滤波器的频率响应。(This article according to the IIR filter and the FIR filter characteristic, uses the bilinearity method of transformation under the MATLAB bad boundary to design IIR and to design the FIR numeral filter separately with the window box number, and carries on the analysis to the gathering pronunciation signal, and finally gives IIR and FIR to the pronunciation filter effect.)

模拟2个独立窄带信号入射到均匀线阵上，信号间互不相关，与噪声相互独立，噪声为理想高斯白噪声，阵列的阵元数为10，快拍数为200。阵元间距为入射信号波长的1／2，信噪比为20dB，信号入射角度差分别为5°，10°，20°。(Simulate two independent narrowband signals incident on the ULA, among signal unrelated, independent noise, the noise is ideal Gaussian white noise, the number of array elements of the array is 10, the number of snapshots to 200. Element spacing is 1/2 of the wavelength of the incident signal, SNR is 20dB, the signal difference between the angle of incidence was 5 °, 10 °, 20 °.)

simulink model of smps

经典的功率谱估计方法，包含自相关法，周期图法(The classic power spectrum estimation methods, including autocorrelation, periodogram)

用C语言编写MATLAB 函数， 以用于DSP芯片上(Use the programming language C to write MATLAB function, col2im )

Region fucion homogenity creterea