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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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Pv-tracking
本段与程序用于导航系统接收机中对信号的跟踪,用于高动态中。(This paragraph and procedures for navigation system receiver tracking signals for high dynamics.)
- 2016-05-06 21:47:15下载
- 积分:1
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a-bilnd-dection
基于子空间的盲多用户检测技术,里面包含PASTd算法和秩算法的介绍与计算。下面我会把自己的翻译也上传上来。(Subspace-based blind multi-user detection technology, which containing PASTd algorithm and rank algorithm describes calculation. I will own translation post it here.)
- 2013-02-27 21:34:42下载
- 积分:1
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CCTIME
This function Simulates the swing equation of a one-machine system and returns the critical clearing time for stability.
- 2014-10-04 18:59:27下载
- 积分:1
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mpc
使用基于状态空间的模型预测控制,对四旋翼模型进行控制,实现了稳定的控制效果。并且有simulink模型作为参考。(Using the model predictive control based on state space, the four rotor model is controlled to achieve a stable control effect. And there are Simulink model as a reference.)
- 2016-01-18 16:01:06下载
- 积分:1
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t-f_analysis
matlab时频分析工具箱 相信很多人需要的(tftb)
- 2009-06-14 22:54:36下载
- 积分:1
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BMPliangzhen
说明: 块匹配法相邻两帧matlab代码,用来进行相邻两帧块匹配(Block matching algorithm matlab code for two adjacent frames)
- 2011-03-08 10:21:50下载
- 积分:1
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a2
说明: 简单的 关于图像的二值化 锐化 滤波 基本能实现 算出不变矩!!!!!关于图像检索(Simple binary on the image sharpening filter can basically figure out the same moment to achieve! ! ! ! ! About Image Retrieval)
- 2010-05-04 14:25:50下载
- 积分:1
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jiaoxueshiyan
这是MATLAB中的三个很好的实验,通过这三个实验可以更好地理解数字图像处理的原理(This is the MATLAB three very good experiment, the adoption of these three experiments can be a better understanding of the principles of digital image processing)
- 2008-03-25 21:56:10下载
- 积分:1
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uav0
四旋翼无人机典型飞行状态的控制律设计,采用PID控制实现。(The state of the typical four-rotor UAV flight control law design, the use of PID control to achieve.)
- 2012-07-06 09:43:31下载
- 积分:1