图像的频谱 对数幅度谱 原图 频谱图 信号与系统
图像的频谱 信号与系统 原 图 频谱图 对数幅度谱
音乐均衡器/调音器 o图形均裔器G 默认 :1 图形坷G 摇 2+: 信号与系统
音乐均衡器/调音器 信号与系统
Fourier Transforms in Physics: Diffraction a diffraction grating breaks a laser beam input into multiple beams Demonstration 信号与系统
信号与系统
Fourier Transforms in physiCs: Diffraction The grating has a periodic structure (period D) sInd= D The "far field" image is formed by interference of scattered light Viewed from angle 0, the scatterers are separated by dsin 8. If this distance is an integer number of wavelengths x- constructive interference 信号与系统
信号与系统
cd demonstration 3 feet 1 feet laser pointer 入=500nm CD screen What is the spacing of the tracks on the CD? 1.160nm 2.1600nm3.16m4.160um 信号与系统
信号与系统