morphologyforradarimg

Quadrature amplitude modulation (QAM) is a modulation scheme in which two sinusoidal carriers, one exactly 90 degrees out of phase with respect to the other, are used to transmit data over a given physical channel. One signal is called the I signal, and the other is called the Q signal. Because the orthogonal carriers occupy the same frequency band and differ by a 90 degree phase shift, each can be modulated independently, transmitted over the same frequency band, and separated by demodulation at the receiver. For a given available bandwidth, QAM enables data transmission at twice the rate of standard pulse amplitude modulation (PAM) without any degradation in the bit error ratio (BER).

用短时傅立叶变换对信号进行时频分析，并有频谱图随着窗的大小进行的对比。(Using short-time Fourier transform of the signal time-frequency analysis and frequency spectrum as the window size of the contrast.)

Many synthetic aperture radar (SAR) image formation algorithms require the computation of a multidimensional Fourier transform of irregularly-sampled or unequally-spaced data samples. We apply a recently developed algorithm, the unequally-spaced FFT (USFFT),2 to SAR image formation and compare its accuracy and complexity to a conventional algorithm. We find that the USFFT algorithm allows comparable accuracy to traditional approaches at a slightly reduced computational cost. We briefly discuss extensions of the USFFT algorithm to multiresolution SAR imaging

HSV颜色直方图的小例子，可以显示三个通道的二维灰度图像，以及它们各自的直方图。(color histogram demo)

说明：  一个使用遗传算法整定PID参数的例程，使用M文件调用Simulink模型。(A routine that uses genetic algorithms to tune the PID parameters uses the M file to call the Simulink model.)

说明：  与FOA-GM配套的11输入量的灰色神经网络算法(Grey Neural Network Algorithms with 11 Inputs Matched with FOA-GM)

说明：  语音识别中的矢量量化（vq）的matlab程序，希望可以帮到需要的人(Speech Recognition vector quantization (vq) Matlab procedure, the desire to help people in need)

主要用MATLAB对图像惊进行处理，对图像进行滤波器处理 给出滤波前后的图形很有实用(Main MATLAB to image surprised processing, the image filter processing are before and after the graphics are filter practical)

说明：  常见的图像处理matlab源代码！！包括反色，常见滤波，去噪，和常用变换！(common image processing Matlab source code! ! Anti- including color, common filtering, noise removal, and common Transform!)

介绍了蒙特卡罗(Monte Carlo) 方法,即随机模拟方法,提出了任意分布随机数的产生原理 及方法,并用算例说明蒙特卡罗方法的使用过程,同时用χ2 拟和优度法验证了其合理性. 关键(Montcarlo simulation)