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insdem08
inertial navigation system5
- 2008-01-09 19:37:56下载
- 积分:1
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FBP
这是一个医学图像重建程序,用的是滤波反投影算法。(Medical Image Reconstruction using Filtered Back Projection.
Matlab code (GUI)+ 4 Sinograms for testing/demonstrations.
Can be used as a laboration to compare different numbers of projections, filters and interpolation methods.)
- 2009-06-21 22:18:27下载
- 积分:1
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chap4_09_GPC_NoIden
c(q-1)=1,gpc算法,被控对象为开环不稳定费最小相位系统(c(q-1)=1,gpc,NoIden,Charged object charges for open-loop unstable minimum phase systems)
- 2012-04-12 10:38:02下载
- 积分:1
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FIR
1、验证窗函数 N 变化时,验证其频谱主瓣副瓣比、主瓣宽度的变化。
a)矩形窗函数的 N 变化时,验证其其频谱主瓣副瓣幅度比基本不会发生变化,
而主瓣宽度将会变窄。这说明,当用矩形窗函数设计滤波器时,增大 N 不能使
得阻带衰减减小,但能够减小过渡带。
b)再选取其他的窗如 hamming/hanning 窗,验证当 N 变化时,其频谱主瓣宽
度变化、主瓣副瓣比值变化情况。
2、用窗函数法设计线性相位 FIR 低通,通带截止频率 wp=0.5PI, 阻带截止频率 ws=0.6PI,
阻带衰减不小于 40dB,通带衰减不大于 3dB.
a)选取 Hanning,Hamming 窗查看设计出来的 FIR 的过渡带宽和阻带衰减是否
满足要求,二者有什么不同。
b)使用 hamming 窗,将窗长增大 1 倍,设计 FIR。验证同样的窗函数类型
(hamming),不同窗长度时,设计出来的 FIR 的过渡带宽和阻带衰减都有什么变
化。
3、不使用 Matlab 系统函数得到上一项指标的低通,并与上一项结果比较。
4 用窗函数法设计线性相位 FIR 高通,通带截止频率 wp=0.8PI, 阻带截止频率
ws=0.7PI, 阻带衰减不小于 30dB,通带衰减不大于 3dB.(An actual filter is implemented using the truncated unit impulse response sequence of the ideal filter.
For the ideal low pass filter, the unit impulse response h, N, D () is intercepted by a length of N, and the length is
The N sequence H (n), when intercepted, guarantees causality and linear phase requirements for the filter.
In order to reduce the Gibbs effect, the H (n) window is added, and the appropriate window function is selected to ensure the stopband attenuation and
Transition zone requirement. Note that the sidelobe of the window function affects the stopband attenuation of the filter, and the main lobe width affects the filter
Transition bandwidth.)
- 2017-07-06 11:55:24下载
- 积分:1
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spihtmatlab
基于matlab的spiht编码源程序,希望对大家有用.(spiht source code, we hope that the right useful.)
- 2007-03-05 21:18:47下载
- 积分:1
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GSO
萤火虫算法,一种新颖的群优化算法,目前比较流行的有两种,一种是FA,一种是GSO,本代码试GSO的实现(glowworm swarm optimization)
- 2014-08-14 10:23:20下载
- 积分:1
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lisa-vhdl2va
通过modelsim仿真检测matlab生成滤波器效果。(Generate the filter through matlab and simulated by modelsim.)
- 2013-12-12 11:17:18下载
- 积分:1
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ILC_iterativelearningcontrol
迭代学习控制:闭环以及开环控制器间切换,具有PI,D型等多型控制器,具有初态学习模块。(Iterative learning control: Closed-loop and open-loop controller to switch between, with PI, D-type and other type of controller with initial state learning modules.)
- 2013-07-15 16:24:18下载
- 积分:1
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SPARSITY-CONSTRAINT-FOR-DIRECT
A MODEL-BASED METHOD WITH JOINT SPARSITY CONSTRAINT FOR DIRECT
- 2013-11-16 10:13:38下载
- 积分:1
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matlab
动态系统仿真例子,使用matlab语言,四阶龙格-库塔发(Dynamic system simulation example, the use of matlab language, fourth-order Runge- Kutta-fat)
- 2008-05-14 22:08:11下载
- 积分:1