-
mtm
多频道功率谱计算程序，比常规功率分辨率更高，matlab2006a平台调试通过(multi-channel power spectrum calculation procedures than conventional power with higher resolution, matlab2006a through debugging platform)
- 2007-02-27 22:26:06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
-
Untitled3
本程序利用显式差分格式，将波动方程离散化，进而求出波动方程的数值解，不断地细化空间和时间步长，可以让数值解逼近理论解。(The program with the implicit difference method, the discrete wave equation, the numerical solution is obtained, continue to refine the long walk the numerical solution can approach the theoretical solution.)
- 2015-01-21 00:18:12下载
- 积分：1
-
activeContoursDemo
active contour snake technique for segmentaion of gray scale image
- 2015-02-02 16:16:59下载
- 积分：1
-
radar-signal-doppler-TFA
此例程为配套书籍的第六章例题6-6的相对应代码，功能为计算雷达回波信号的多谱勒时频谱，编程环境为matlab。(This routine supporting books Chapter Example 6-6 corresponding code function for calculating the radar echo signal Doppler spectrum for Matlab programming environment.)
- 2013-05-02 18:47:30下载
- 积分：1
-
TFA-Matlab
目标因子分析,用于找主因子数，由例子能清晰明了的理解(Target factor analysis, the number of factors used to find the Lord, by the example of clarity of understanding can)
- 2014-01-14 13:08:57下载
- 积分：1
-
ReserveDesign_Matlab
一个动态储备设计问题，需要用matlab的MDP工具箱进行求解。(a dynamic reserve design problem)
- 2018-08-26 22:27:44下载
- 积分：1
-
yuyinchuli
清音和浊音的平均幅度，短时过零率，基音周期，对数幅度谱，高低时部分(Voiceless and voiced the average range, short-term zero crossing rate, pitch period, the number of amplitude spectrum, high or low section)
- 2010-05-14 20:06:29下载
- 积分：1
-
quantinf-0.3.2.tar
量子信息搜索的各种例程 (various routines for quantum information research
)
- 2011-04-21 16:22:04下载
- 积分：1
-
shuxuejianmo
matlab基础，及其源代码，主要是数学建模中用的(matlab based on its source code, mainly used in the mathematical modeling)
- 2011-05-26 09:12:59下载
- 积分：1
