freqres

基于Matlab的灰色预测算法.灰色预测是指：通过少量的、不完全的信息，建立灰色微分预测模型，对事物发展规律作出模糊性的长期描述（模糊预测领域中理论、方法较为完善的预测学分支）。(Matlab-based prediction algorithm of gray. Gray prediction means: through a small amount of incomplete information, the establishment of differential gray prediction model, the law of development of things to make long-term description of fuzzy (fuzzy predictive field theory, methods, better predictions branch).)

用matlab编写的数字信号处理源码，包含很多常用信号分析功能，非常使用。(using Matlab prepared by the Digital Signal Processing Source include many commonly used signal analysis functions, very used.)

图像处理实验报告，实验内容：用matlab实现图像增强，包括灰度变换，滤波，色彩增强(image processing experiments, experimental content : Matlab image enhancement, including gray-scale transformation, filtering, enhanced color)

模拟出一个雷达的线性调频信号的波形，给出其频谱图(Simulate a radar LFM waveform, give its spectrum)

arima时间序列模型，对一个序列进行也测(arima time series models, also measured on a sequence)

matlab code for Hilbert Huang Transform part (matlab code for Hilbert Huang Transform part)

说明：  信号源仿真，信号成型，4QMA调制，QPSK，阵列信号接收(source simulation，Signal shaping ，4QAM,QPSK，array signal receive)

一个二维图像小波分解的matlab GUI程序，可以在这个基础上添加代码丰富功能。(A 2D wavelet decomposition matlab GUI program.)

正弦周期信号的随机共振，不同于以往微弱信号检测中的抑制噪声，随机共振能通过噪声加强信号传输能力( We present the numerical method to solve the bistable SR model based on Runge-Kutta algorithm, and propose a new kind of approach for detecting weak signal, which can effectively detect both period and aperiodic weak signals corrupted by the strong noise background. )

BER performance in QPSK modulation