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3-D-FDTD-code-with-PEC-boundaries
matlab有限元
3-D FDTD code with PEC boundaries (matlab finite element
3-D FDTD code with PEC boundaries)
- 2014-09-17 09:15:30下载
- 积分：1
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Steel-reinforced-concrete-beam
钢骨混凝土梁，mathcad格式。Steel reinforced concrete beam(Steel reinforced concrete beam)
- 2015-01-22 08:14:34下载
- 积分：1
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FDTD_TE
在MATLAB环境下，用FDTD方法，用高斯点源仿真TE波在空间的传输。(In the MATLAB environment, using FDTD method, the Gaussian point source simulation of the transmission of TE waves in space.)
- 2010-07-10 15:12:02下载
- 积分：1
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ILC_PID_paratemer
ILC算法中PID学习率中PID参数的选择优化程序(Select the PID algorithm optimization program ILC learning rate in PID parameters)
- 2021-03-02 17:09:33下载
- 积分：1
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denoisingFilters
denoising filters such as Average, Median, Gaussian, Wiener, Min-order-statistic, Maxorder-statistic and Median-order-statistic are used. Based on the images obtained by the mentioned
filters, it is become obvious clear that for the given noisy image the Min filter acted much better than
the other filters. Order-statistic Median and Gaussian filters are the ones that have a second and third
good result respectively. That is way can conclude that the existing noise in the given image was Salt
noise.
- 2013-12-11 17:12:40下载
- 积分：1
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Antenna
EM Numerical Modeling of a Monopole
- 2017-03-19 11:01:43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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wm
说明： 中继位置不同 分配功率相同 的放大协同通信 基于蒙特卡洛仿真(Relay different positions assigned the same zoom power cooperative communication based on Monte Carlo simulation)
- 2011-10-16 19:44:13下载
- 积分：1
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fourth_order_music1
阵列信号处理_空间谱估计原理的一些基本算法——MusicEspritMp(Array signal processing _ the principle of spatial spectrum estimation of some of the basic algorithm- MusicEspritMp)
- 2007-08-10 20:25:54下载
- 积分：1
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sc
说明： 前半部分仿真可能是对的 ，但是后面求频偏估计均方误差与定时估计均方误差的图像时，就不对了。希望告诉们能给我解答一下(code about OFDM)
- 2010-10-22 16:07:06下载
- 积分：1
