jisuansuanfa

认 知 无 线 电 谱 分 析 技 术(Spectral analysis of cognitive radio)

说明：  经典的遗传算法工具箱的算术交叉程序，与大家分享(classic genetic algorithm toolbox arithmetic Cross procedures, and share)

Detection of QRS wave of more detailed procedures, including the starting point of QRS wave, peak detection.

hide message inside image and retrive it from image using dct

说明：  本上传讲解了傅里叶变换与频谱分析之间的关系，通过fft的到信号的频谱图(Explained the Fourier transform of the upload and spectral analysis of the relationship between the fft of the signal through the frequency spectrum)

说明：  PLL是一个锁相环模块，能得到波形的相角，从而实现同步信号的控制(PLL is a phase-locked loop module, waveform, phase angle, in order to achieve the control of the synchronization signal)

也是自适应的波束形成，有中文注解,好好看，应该能看懂的(adaptive beam forming)

matlab 实现fft及频谱分析 适合入门了解(matlab fft)

此为机器学习中的常见算法的matlab代码，代码注释详细，易上手(This is a common algorithm in machine learning matlab code, code comments in detail, easy to use)

code for object extraction using matlab