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[matlab] matlab下带有缺测数据的平均与求和 DL : 1: cmean使用起来与mean一样，可以对高维数组进行统计，其中cmean把数据中的nan完全剔除了，返回的是有值时的平均（如果都是缺测，也是返回nan）。不会向mean那样，如果有缺测，平均值也为缺测 csum与sum类似。实际观测中常常有意外产生缺测，这两个函数希望对大家有用。
Date : 2011-05-27 Size : 1.08kb User : zhoudg@gmail.com
[matlab] wavelift DL : 0: 暂时只支持jpeg2000支持的 cdf97 和spline53 可以这样来测试： x=imread( E:\study\jpeg2000\images\lena.tif ) ％ see the decomposition coefficients y=wavelift(x, 1, spl53 ) using spline 5/3 wavelet figure subplot(1,2,1) imshow(x) subplot(1,2,2) imshow(mat2gray(y)) ％ see the reconstruction precision yy=wavelift(x, 5) using cdf 9/7 wavelet ix=wavelift(yy,-5) inverse sum(sum((double(x)-ix).^2)) -only temporary support jpeg2000 support cdf97 and spline53 this can be measured Examination : x = imread (E : \ study \ jpeg2000 \ images \ lena.tif)% see the d ecomposition coefficients wavelift y = (x, 1, spl53) using spline 5/3 wavelet figure subplot (1,2,1) imshow (x) subplot (1,2, 2) imshow (mat2gray (y))% see the reconstructi on precision wavelift yy = (x, 5) using cdf 9/7 wavelet ix = wavelift (yy.-5) inverse sum (sum ((double (x)- ix). ^ 2
Date : 2025-12-16 Size : 6kb User : 余庆红
[matlab] ovrlpadd DL : 0: realize overlapped-add method ％[y]=overlpadd(x,h,Nfft) ％y:output sequence ％x:input sequence ％h:filter impulse response sequence ％Nfft:points of each DFT operation ％重叠相加法实现分段卷积-realize overlapped-add method% [y] = over lpadd (x, h, Nfft)% y : x% output sequence : % h input sequence : impulse response filter% Nfft sequence : DFT points of each operation% of the sum of overlapping sub-convolution Method
Date : 2025-12-16 Size : 1kb User : 吴江华
[matlab] IterativeClosestPointMethod DL : 0: ICP fit points in data to the points in model. Fit with respect to minimize the sum of square errors with the closest model points and data points. Ordinary usage: [R, T] = icp(model,data) INPUT: model - matrix with model points, data - matrix with data points, OUTPUT: R - rotation matrix and T - translation vector accordingly so newdata = R*data + T . newdata are transformed data points to fit model see help icp for more information -ICP fit points in data to the points in model. Fit with respect to minimize the sum of square errors with the closest model points and data points. Ordinary usage: [R, T] = icp(model,data) INPUT: model- matrix with model points, data- matrix with data points, OUTPUT: R- rotation matrix and T- translation vector accordingly so newdata = R*data+ T . newdata are transformed data points to fit model see help icp for more information
Date : 2025-12-16 Size : 5kb User : 阳关
[matlab] Ranksum_test DL : 0: 秩和检验的Matlab源码程序，计算两类变量所含显著差异的变量-Rank sum test of the Matlab source code program to calculate two types of variables contained in significant differences in the variables
Date : 2025-12-16 Size : 47kb User : wangli
[matlab] Waterfilling.Algorithm DL : 0: Waterfilling algorithm (from [Palomar and Fonollosa, Trans-SP2004]) to compute: pi = (mu*ai - bi)^+ sum(pi) = Pt By Daniel Perez Palomar (last revision: May 10, 2004).-Waterfilling algorithm (from [Palomar and Fonollosa, Trans-SP2004]) to compute: pi = (mu*ai- bi)^+ sum(pi) = Pt By Daniel Perez Palomar (last revision: May 10, 2004).
Date : 2025-12-16 Size : 1kb User : 马文
[matlab] 8QAM DL : 1: 利用matlab仿真软件，实现8QAM调制。在实现时采用正交调幅的方式,某星座点在I坐标上的投影去调制同相载波的幅度,在Q坐标上的投影去调制正交载波的幅度,然后将2个调幅信号相加就是所需的调相信号。-Use of matlab simulation software to achieve 8QAM modulation. In achieving the adoption of quadrature amplitude modulation means of a constellation in the I coordinates of the projection to the modulation of the amplitude-phase carrier, in the Q coordinates of the projection to the range of carrier orthogonal modulation, and then the sum of two AM signals is the required phase modulation signal.
Date : 2025-12-16 Size : 1kb User : yanyan
[matlab] QPSK-I-Q DL : 0: matlab仿真程序，产生QPSK调制的信号，严格按照QPSK的调制步骤分I路Q路产生信号，最后两路相加，产生已调信号，调制信号随机产生，载波信号是余弦信号。-matlab simulation program to produce the QPSK modulation signal, in strict accordance with the QPSK modulation of the sub-step road Q road I have a signal, the sum of the last two, have been transferred signal, randomly generated modulated signal, carrier signal is a cosine signal.
Date : 2025-12-16 Size : 3kb User : duanaobest
[matlab] Rayleigh_fading DL : 0: In this program, several statistical fading channel simulators using the Sum-of-Sinusoids (SoS)has been implemented.A Rayleigh fading channel impulse respose using jakes model has been generated in matlab -In this program, several statistical fading channel simulators using the Sum-of-Sinusoids (SoS)has been implemented.A Rayleigh fading channel impulse respose using jakes model has been generated in matlab
Date : 2025-12-16 Size : 4kb User : ria
[matlab] liner_convolution DL : 0: 数字信号处理中实现线性卷积的M文件，包括重叠相加法和重叠保留法-the M documents for achieving a linear convolution in Digital signal processing, including the sum of overlap and duplication of reservation law
Date : 2025-12-16 Size : 1kb User : zhu
[matlab] matlab DL : 0: 包括matlab使用的经典的一百个例子。能让你从中总结出matlab的精髓-Including the use of matlab classic example of the 100. Allows you to sum up the essence of matlab
Date : 2025-12-16 Size : 22kb User : zhou
[matlab] l1_ls DL : 0: 最小化l1范数的Matlab代码。求解模型为： min lambda*|x|_1+||A*x-y||_2。其中，|x|_1表示x的1-范数，||*||_2表示2-范数。该模型在稀疏成分分析、压缩传感器等领域有广泛的用途。- l1-Regularized Least Squares Problem Solver l1_ls solves problems of the following form: minimize ||A*x-y||^2+ lambda*sum|x_i|, where A and y are problem data and x is variable (described below).
Date : 2025-12-16 Size : 3kb User : 云上
[matlab] null_beamform_cf DL : 0: MATLAB function that performers delay and sum beamforming on two input signals in the frequency domain.
Date : 2025-12-16 Size : 1kb User : sam
[matlab] MATLAB DL : 0: 主要介绍了MATLAB命令，并对其进行了一定总结。对掌握相应的函数有所帮助。-Mainly introduces the MATLAB command, and gain a certain sum. Corresponding function of the master help.
Date : 2025-12-16 Size : 25kb User : liangr
[matlab] matlab DL : 0: matlab 程序实现序列的求和相乘反折移位-matlab program to achieve the sequence fold shift by multiplying the sum
Date : 2025-12-16 Size : 29kb User : 田依文
[matlab] pisar DL : 0: Pisarenko谐波分解 matlab程序-Pisarenko Harmonic Decomposition PISAR(XT,SIN_NUM) Subplots the input signal (Xt) and the signal generated by the Pisarenko Harmonic Decomposition algorithm for a sum of SIN_NUM sinusoid waves
Date : 2025-12-16 Size : 1kb User : asklearner
[matlab] OFDMA-resource-Allocation(matlab) DL : 2: 基于OFDMA系统的多用户资源分配算法，论文配备MATLAB代码，入门的好教材。-— Orthogonal Frequency Division Multiple Access (OFDMA) basestations allow multiple users to transmit simultaneously on different subcarriers during the same symbol period. This paper considers basestation allocation of subcarriers and power to each user to maximize the sum of user data rates, subject to constraints on total power, bit error rate, and proportionality among user data rates. Previous allocation methods have been iterative nonlinear methods suitable for ofine optimization. In the special high subchannel SNR case, an iterative root-nding method has linear-time complexity in the number of users and N logN complexity in the number of subchannels. We propose a non-iterative method that is made possible by our relaxation of strict user rate proportionality constraints. Compared to the root-nding method, the proposed method waives the restriction of high subchannel SNR, has signicantly lower complexity, and in simulation, yields higher user data rates.
Date : 2025-12-16 Size : 157kb User : 王刚名
[matlab] SUM OF SIN DL : 0: SUM OF SINUSOIDAL SIGNALS
Date : 2025-12-16 Size : 21kb User : mandelli
[matlab] Fourier transform based on Riemann sum DL : 0: 基于黎曼和，已知傅里叶计算的公式，积分计算傅里叶级数(Fourier transform based on Riemann sum.)
Date : 2025-12-16 Size : 199kb User : malvina
[matlab] MATLAB DL : 0: 本章先分析说明伪谱法求解波动方程的算法原理，再给出弹性波场伪谱法数值模拟的改进算法；然后，通过直接引入P波波场变量和S波波场变量，给出可实现弹性波场的P波和S波分解的波动方程，并用伪谱法实现弹性波场的P波和S波分解的数值模拟；最后用伪谱法对井间地震的复杂波场作数值模拟，分析井间地震波场中各种波的传播规律。(In this chapter, the principle of pseudo-spectral method for solving wave equation is analyzed, and then an improved algorithm for numerical simulation of elastic wave field is given. Then, by directly introducing P-wave field variable and S-wave field variable, the wave equation which can realize P-wave and S-wave decomposition of elastic wave field is given, and the P-wave sum of elastic wave field is realized by pseudo-spectral method. Numerical simulation of S-wave decomposition; finally, pseudo-spectral method is used to simulate the complex cross-well seismic wave field and analyze the propagation law of various waves in cross-well seismic wave field.)
Date : 2025-12-16 Size : 113kb User : bingwuhen1

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