-
DOPPLER
描述多普勒效应的一个matlab程序，用于产生时域和频域波形(Doppler effect describes a matlab procedure, used to produce time-domain and frequency domain waveform)
- 2009-01-12 19:48:40下载
- 积分：1
-
RankingHeterogeneousFeaturesWithmRMRAndMutualInfor
该代码是基于互信息的非均匀特征排序算法的MATLAB实现(The code is based on the mutual information of non-uniform features of MATLAB realization of sorting algorithms)
- 2010-09-17 10:07:51下载
- 积分：1
-
rtejfgds
现有的代数特征的抽取方法绝大多数采用一维的方法，即首先将图像转换为一维向量，再用主分量分析（PCA）,Fisher线性鉴别分析（LDA）,Fisherfaces式核主分量分析（KPCA）等方法抽取特征，然后用适合的分类器分类。针对一维方法维数过高，计算量大，协方差矩阵常常是奇异矩阵等不足，提出了二维的图像特征抽取方法，计算量小，协方差矩阵一般是可逆的，且识别率较高。(existing algebra feature extraction method using a majority of the peacekeepers, First images will be converted into one-dimensional vector, and then principal component analysis (PCA), Fisher Linear Discriminant Analysis (LDA), Fisherfaces audits principal component analysis (KPCA), and other selected characteristics, then use the appropriate classification for classification. Victoria against an excessive dimension method, calculation, covariance matrix is often inadequate singular matrix, a two-dimensional image feature extraction method, a small amount of covariance matrix is usually reversible, and the recognition rate higher.)
- 2020-08-14 13:28:28下载
- 积分：1
-
11
说明： empirical formula with kaiser
clc
clear all
fs=1000
fc=250
df=50
r=0.001
f=fc/fs
dw=2*pi*(df/fs)
a=-20*log(r)
n=floor(((a-8)/(2.285*dw))+1)
if a>50
b=0.1102*(a-8.7)
elseif a>=21 && a<=50
b=0.5842*((a-21)^0.4)+0.07886*(a-21)
elseif a<21
b=0.0
end
w=kaiser(n,b)
for i=1:n
if i~=(n-1)/2
hd(i)= (2*f*sin((i-((n-1)/2))*2*pi*f))/((i-((n-1)/2))*2*pi*f)
elseif i==(n-1)/2
hd(i)=2*f
end
end
for j=1:n
h(j)=w(j)*hd(j)
end
subplot(3,1,1), plot(w)
subplot(3,1,2), plot(h)
subplot(3,1,3), plot(h,n)
- 2014-12-24 23:20:03下载
- 积分：1
-
382
J2T_reward_points_1_6
magento 最实用的分销积分插件(J2T_reward_points_1_6
Give your store an incentive points-based loyalty system with J2T Points &... J2T Reward Points+ Referral program )
- 2014-12-26 17:14:33下载
- 积分：1
-
maximum likelihood estimation
说明： 内含两个可直接运行的最大似然估计的matlab程序，有少量注释(The matlab program of maximum likelihood estimation which can be run directly has a few notes)
- 2020-10-28 17:14:29下载
- 积分：1
-
3002-(1)
介绍了一种新的全光纤激光器，脉冲的，峰值功率不是很大(We report a narrow-linewidth (∆ λ = 0.4 nm) optical pulsed MOPA (master oscillator – power amplifier) source emitting
0.41 mJ pulses (1.5 kW peak power) in the eye-safe range (λ=1548 nm). Pulse duration and repetition rate were 90 ns
and 5 kHz respectively. )
- 2014-11-12 00:30:55下载
- 积分：1
-
xianzhuxingjianyan
文章介绍了我们常用的预测方法中的回归分析方法的显著性检验的相关知识(Knowledge of the significance test article describes our prediction method of regression analysis method)
- 2013-02-22 20:53:28下载
- 积分：1
-
obj_display
包含三维obj格式的模型，并用matlab读取并显示，程序可用。(Contains a three-dimensional model of obj format, using matlab read and display, the program is available.)
- 2013-04-18 22:26:14下载
- 积分：1
-
1Dquand.tar
quantization wavelet to generate step signal
- 2010-06-10 03:50:03下载
- 积分：1
