yuandaima

X信号的时域和频域分析，及针对该信号的滤波器设计、验证(X signals in time domain and frequency domain analysis, and for the signal of the filter design, verification)

This m file analyzes a coherent binary phase shift keyed(BPSK) and a amplitude shift keyed(ASK) communication system. The receiver uses a correlator(mixer-integrator[LPF]) configuration with BER measurements comparing measured and theoretical results. The bandpass and low pass used in the receiver are constructed using z transforms. (This m file analyzes a coherent binary phas e shift keyed (BPSK) and a amplitude shift keyed (ASK) communication system. The receiver uses a correlator (mixer-integrator [LPF]) config Education and other BER measurements comparing with measu red and theoretical results. The bandpass and l ow pass used in the receiver are constructed usi Vi z transforms.)

基于增广矩阵束的L型阵列的二维DOA估计MATLAB程序(MATLAB program is based on two-dimensional DOA estimate augmented matrix L-shaped array of beams)

sobel和prewitt測邊的相關做法，sobel是一種high pass 處理，可將圖中的輪廓顯示出來(sobel edge measurement and prewitt related practices, sobel is a high pass processing, the outline of the figure can be displayed)

Implementation of the Non local filter for image denoising

改进牛顿拉夫逊法求解三相不平衡配电网，适合各节点情况(Improved Newton Raphson method for solving the three-phase unbalanced distribution network for each node)

设计一个2阶加权自适应噪声对消器，对经加性白高斯噪声信道干扰的正弦信号进行滤波(The design of a 2-order-weighted adaptive noise cancellation, and for the AWGN channel interference filtering of sinusoidal signals)

文中的方法是把图像分块，小波分解得到低频分量、高频分量，然后计算每一块的对比度，把图像块划分为清晰块、模糊块，把清晰块和模糊块相邻的区域定义为边界区域，融合时，直接选取清晰块作为融合后的相应块，对于边界区域，在小波分解的基础上采用基于对比度的像素选取的方法进行处理。(Paper, the method is to image segmentation, wavelet decomposition are low frequency, high frequency components, then calculate the contrast of each piece, the image block is divided into clear blocks, fuzzy block, to clear blocks and fuzzy block is defined as the border region adjacent to area, integration time, a clear block directly select the corresponding block as a fusion, for the border region, the wavelet decomposition on the basis of the pixel-based contrast method selected for processing.)

QAM信号调制解调的仿真以及解调误码率的比较。(QAM signal modulation and demodulation of the demodulation error rate simulation and comparison.)

it will help the beginners to understand digital image processing using matlab