hwica

FIR与IIR滤波器在DSP上的实现.　　　DSP是利用计算机或专用DSP处理器，以数字形式对信号进行采集、变换、滤波、估值、增强、压缩、识别等处理，以得到符合人们需要的信号形式。FIR(Finite Impulse Response)滤波器：有限长单位冲激响应滤波器，又称为非递归型滤波器，是数字信号处理系统中最基本的元件，它可以在保证任意幅频特性的同时具有严格的线性相频特性，同时其单位抽样响应是有限长的，因而滤波器是稳定的系统。(FIR and IIR filter is implemented on the DSP. DSP is the use of a computer or a dedicated DSP processor in digital form to the signal acquisition, conversion, filtering, valuation, enhancement, compression, recognition processing needs of the people to give signal form. FIR (Finite Impulse Response) filter: finite impulse response filter units, also known as non-recursive filters, digital signal processing system is the most basic element, it can guarantee any amplitude-frequency characteristics of both a strict linear phase-frequency characteristics, while the unit sampling response is of finite length, and thus the filter is stable system.)

We consider a complex-valued wavefield reconstruction in an object plane from data in a sensor plane. A digital modeling for the forward propagation is presented in the algebraic matrix form M-DDT. The inverse propagation is formalized as an inverse problem. The main algorithm of the complex-valued wavefield reconstruction with the proposed Matrix Discrete Diffraction Transform (M-DDT) is prepared as a Matlab demo.

本程序是用于图像去噪，使用的是多小波GHM去噪方法，对比单小波去噪效果明显。(This procedure is used for image denoising, the use of multi wavelet GHM denoising method, compared to Dan Xiaobo denoising effect is obvious.)

简单的K均值聚类函数，用于求算重心的函数，算法高效快速(Simple K-means clustering function for calculating the center of gravity function, the algorithm is fast and efficient)

Estimation of direction in degree for doa study

循环冗余校验码(试验报告)(Cyclic Redundancy Check (pilot reports))

通过一个图像序列来创建背景图像，用于背景差分(Through an image sequence to create a background image for the background subtraction)

聚类算法k-medoids 该代码针对的是图像处理 该算法采用局部航迹与系统航迹进行关联的策略(K-medoids clustering algorithm is the code for the image processing algorithm strategy using a local track trajectories associated with the system)

相控阵天线的方向图（切比雪夫加权），DC-DC部分采用定功率单环控制，esprit算法对有干扰的信号频率进行估计。( Phased array antenna pattern (Chebyshev weights), DC-DC power single-part set-loop control, esprit algorithm signal frequency interference can be assesse.)

说明：  小波变换通过matlab实现s小波变换代码，给出变换结果。(Wavelet transform, through the realization of s wavelet transform matlab code, given the results of transformation.)