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Gps
GPS卫星的动态仿真模型 一共包括九个程序 体现了卫星的运动 定位过程(GPS yundong dingwei fangzhen)
- 2010-05-31 11:11:16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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VTB4Matlab
Matlab图像与视频处理工具（VTB4Matlab）代码,对相关专业的人来说很有用(Matlab image and video processing tool kit (VTB4Matlab) code)
- 2009-02-13 20:36:01下载
- 积分：1
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equlization-matlab-code
equlization Matlab Code
- 2011-01-24 05:48:02下载
- 积分：1
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HW1_3
system identification with OLS input selection
- 2010-05-20 18:23:52下载
- 积分：1
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the-fem-using-matlab
包括欧拉梁单元，杆件梁单元，Truss单元，边界处理等。可通用，里面有变量说明。详细可参考THE FINITE ELEMENT METHOD USING MATLAB(Euler beam element)
- 2012-06-12 20:58:03下载
- 积分：1
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kml-example
goolgle earth的kml动画 基础示例 对了解kml动画的相关内容有帮助(kml animation foundation for understanding the example goolgle earth kml animation related content helpful)
- 2014-11-05 16:07:27下载
- 积分：1
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LINESEARCH
Finds the roots of a function using the Newton method with line search
- 2014-01-10 16:40:27下载
- 积分：1
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compconv
用MATLAB仿真实现GMSK，可直接运行的。(Using MATLAB simulation GMSK, can be directly run.)
- 2009-01-02 18:42:19下载
- 积分：1
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toolboxmatlabgraphtheory
说明： matlab图论工具箱用于利用工具箱求解最短路问题(matlab toolbox for the use of graph theory to solve the shortest path problem Toolbox)
- 2009-08-12 14:13:38下载
- 积分：1
