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IIR
用双线性变换法设计IIR数字滤波器
滤波就是将外界干扰的不需要的频率滤除掉,一面影响要测试数据的结果。比如如果是心电波的话,如果这是外界有很大的噪声干扰,滤波就是把不必要的信号给抑制掉,以便对心跳的正常测试。通过图比较,滤波后的明显比之前的要平滑,就是滤去干扰噪声的结果。采样间隔对实验有影响,取的过大会导致频率混叠。(Bilinear transformation method using digital filter IIR filter design is to outside interference filter out unwanted frequencies, while the impact to test data results. For example, if it is so heart waves, if this is a great noise outside interference, filtering is unnecessary signal out to the curb in order to test the normal heartbeat. Through chart comparison, after filtering than before to smooth the noise interference is the result of least squares. Sampling interval of the experiment affect take-off frequency of the General Assembly leading to aliasing.)
- 2007-11-12 11:37:16下载
- 积分:1
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three_motor
异步电机的仿真模型,基于matlab/simulink环境开发(Induction motor simulation model, based on matlab/simulink environment for development)
- 2008-07-24 12:14:36下载
- 积分:1
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matpower3.0b3
说明: 电力系统最优潮流程序,可以应用于电力市场下的最优潮流计算。适合电力系统专业的同仁使用(optimal power flow procedure can be applied to the electricity market under the optimal power flow calculation. Power systems for the professional colleagues use)
- 2005-09-10 20:16:21下载
- 积分:1
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car-following
Modified coupled map car-following model and
its delayed feedback control scheme
- 2013-10-01 04:17:01下载
- 积分:1
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labview5
使用低通滤波器从含有噪声的信号中提取有用的正弦波
(见实验指导书 实验九 数字滤波器中的第一题)
目的:用数字滤波器从含有高频噪声的采样数据中提取正弦信号。
要求:①输入信号为一正弦波,并加入一个白噪声的干扰来模拟信号传输中的随机干扰信号(用以模拟含有噪声采样序列)。
(模拟含有噪声采样序列具体可用正弦波信号叠加高频噪声来实现,为了使滤波效果明显,本实验的高频噪声是用高频均匀分布白噪声(Uniform)通过Butterworth高通滤波器过滤生成的,高通滤波器的截止频率设为10倍输入信号频率。)
②在程序中设计一个低通巴特沃斯滤波器,以滤除信号中的噪声分量,提取输入的正弦波信号 。
③可调节信号滤波器的截止频率和阶数,可显示滤波前与滤波后的时域信号。
④给出滤波前与滤波后的频谱特性的显示。
(Using low pass filter extracting useful sine wave signal containing noise(see experiment instruction digital filter in the first nine questions)Objective: to use digital filter sampling data extract containing high frequency noise sine signal.Requirements: (1) the input signal is a sine wave, and add a white noise interference to simulate the random disturbance signal of the signal transmission (to simulate contains noise sampling sequence).(simulated the sampling sequence contains noise available sine wave signal superposition of high frequency noise, in order to make the filtering effect is obvious, the experiment of high frequency noise is Uniform distribution with high frequency white noise (Uniform) by Butterworth high-pass filter to filter generated, high-pass filter cutoff frequency set to 10 times the size of the input signal frequency.)(2) in the program design a low-pass butterworth filter, in order to filter out the noise in the signal component, extract the input sine wav)
- 2014-11-23 09:08:57下载
- 积分:1
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Untitled2
多縫夫朗禾費衍射模擬,對於仿真干涉模擬有非常大的幫助(Multi-slit Fraunhofer diffraction Wo fees simulation, emulation interference simulation for a very big help)
- 2013-12-29 15:37:40下载
- 积分:1
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Bhagavatula_May2006_talk
bhagavtula development research
- 2009-04-06 03:11:08下载
- 积分:1
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GAOT
遗传算法是模拟达尔文的遗传选择和自然淘汰的生物进化过程的计算模型。它的思想源于生物遗传学和适者生存的自然规律,是具有“生存+检测”的迭代过程的搜索算法。遗传算法以一种群体中的所有个体为对象,并利用随机化技术指导对一个被编码的参数空间进行高效搜索。(Genetic algorithm is simulated Darwinian natural selection of genetic selection and evolution process model. It' s thought from biological genetics and survival of the fittest laws of nature, is a " survival+ detection" iterative process of search algorithm. Genetic algorithms in a group all the individuals targeted, and technical guidance on the use of a randomized coded efficiently search parameter space.)
- 2011-01-20 10:44:58下载
- 积分:1
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convolu
卷积码在AWGN信道下的实现
包括simulink文件与.m文件 (Convolutional Codes in AWGN channel, including the realization of documents and Simulink. M documents)
- 2007-05-17 11:49:58下载
- 积分:1
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Genomic
本代码通过对基因库中人类和家牛基因编码部分的对比和统计,分析了不同属生物间的基因遗传的异同和特性(This part of the code by comparing the gene encoding the human and cattle library chain genes were compared and statistics, and then to analyze the similarities and differences between different genera of biological and genetic characteristics of genetic)
- 2013-11-23 22:01:17下载
- 积分:1