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matlab
几个关于有限元分析的代码,《结构分析的有限元法与matlab编程》-徐荣桥(Several finite element analysis on the code, " Structural Analysis of the finite element method and matlab programming" - Xu Rong Bridge)
- 2011-04-24 17:42:53下载
- 积分:1
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BPSKpinlv
二相编码雷达脉冲雷达信号的参数提取。在二相编码雷达脉冲信号上加入噪声,然后在提取改信号的频率(Second phase coding parameter extraction radar pulse radar signals. Join noise in the two-phase encoded radar pulses, and then change the frequency of the signal extraction)
- 2015-08-14 15:46:34下载
- 积分:1
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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
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ahb_master_monitor
AHB master monitor for verification
- 2015-04-03 19:38:06下载
- 积分:1
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213131313
说明: MATLAB函数速查手册,说明了大部分函数的功能(Quick Guide MATLAB function, indicating that the majority of functionality)
- 2011-02-22 21:53:10下载
- 积分:1
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KF-simple-scale
说明: 卡尔曼滤波简单例程,一维情况。An Introduction to Kalman Filter中的例子。(Kalman filter is simple routines, one-dimensional situation. An Introduction to Kalman Filter in the example.)
- 2011-03-02 16:41:37下载
- 积分:1
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matlab_R
matlab与R的命令对比,双剑合璧,充分发挥各自的优势。(matlab command comparison with R, two-pronged, give full play to their strengths.)
- 2010-06-03 03:27:41下载
- 积分:1
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RPHtools
RPH tool is Matlab algoritm for Rock physics analysis
- 2013-09-01 00:43:12下载
- 积分:1
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cndlV2.m
修改版的matlab画K线的程序,实现了涨为红色,跌为绿色(Modified version of the matlab draw K-line procedures, the rose is red, or green
)
- 2013-08-29 13:56:38下载
- 积分:1
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apf_sch
Parallel active power filter
- 2010-08-10 01:28:45下载
- 积分:1