-
OFDM
说明： 一篇关于ofdm的论文，对毕业设计等都有好处(ofdm )
- 2010-05-01 20:43:29下载
- 积分：1
-
03607_28
DFT进行频谱分析时的三种现象
1、混叠：对连续信号采样，要求连续信号是带限的，采样频率要足够高。Fs应满足Nyquist采样定理才不产生混叠。
采样前加低通滤波器防混叠
2、频谱泄漏：DFT对时域信号进行了截断（相当于采样信号乘了一个窗函数），时域的乘积相当于频域卷积，改变了原信号频谱。
改用其他窗函数（非矩形）改善泄漏。
3、栅栏现象：DFT 只给出了频谱在采样点上的取值，采样点间的频谱内容丢失。(DFT spectrum analysis of a three phenomena, aliasing : continuous signal sampling, requiring continuous signal is band-limited, the sampling frequency should be high enough. Fs meet the Nyquist Sampling Theorem would not have aliasing. Sampling former low-pass filter plus anti-aliasing 2, spectrum leakage : DFT right time domain signal a disconnect (equivalent to a sampling signal by a window function). time domain is equivalent to the product of frequency-domain convolution, changes in the spectrum of the original signal. Window functions to switch to other (non-rectangular) to improve leakage. 3, fenced phenomenon : DFT spectrum is given only at the sampling point value, sampling points of the spectrum as lost.)
- 2007-05-08 16:22:17下载
- 积分：1
-
binary
C program of binary search
- 2015-03-06 14:58:59下载
- 积分：1
-
Benders
this program is benders method in math
- 2020-11-07 10:09:49下载
- 积分：1
-
bicincrease.m
this is matlab code for bic (bayesian information criterion)
- 2010-06-24 21:20:43下载
- 积分：1
-
histeqconv
here is the code for histogram equilization and convolution for image processing from gonzalvez book also the code for image rotation and image masking
- 2010-10-30 13:05:54下载
- 积分：1
-
itsmydemodulator
This file includes demodulation algorithm who is using and studying the matlab simulink. I hope this zip file would be helpful for them.
- 2012-11-26 23:05:49下载
- 积分：1
-
data_region
DATA REGION is about matlab and OFDM
- 2009-03-31 20:41:23下载
- 积分：1
-
pca
说明： PCA降维方法,这是一个针对图像处理的PCA降维处理方法(The method of PCA,whic is used in the image processing.)
- 2010-04-03 14:43:37下载
- 积分：1
-
LSDA
Locality Sensitive Discriminant Analysis
- 2012-06-19 21:35:30下载
- 积分：1
