如何对信号进行小波变换

我试图对一些输入信号进行小波变换，但我不能使用matlab脚本，因为我只允许使用VEE学生版。
小波变换中的公式过于复杂，我认为甚至无法用VEE编写.VEE本身得到fft（快速傅里叶变换）但没有WT（小波变换）。
无论如何，我想在VEE打开fft的编码，以便做我自己的WT，但无济于事。
请帮忙。
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     以下为原文

  I am trying to do wavelet transformation on some input signals but I can't use matlab script because I am only allowed to use VEE student version. The formula in wavelet transform is too complex which I think can't even be written in VEE.The VEE itself got fft(fast Fourier Transform) but does't have WT(wavelet transform). Anyway I thought of opening the coding for fft in VEE in order to do my own WT but to no avail. Pls help. Thanks.
     

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你对DWT（离散小波变换）还是CWT（连续小波变换）感兴趣？Allan A Thomson CEng MIMechEHYPERLINK“mailto：allan.strathardo@virgin.net”allan.strathardo@virgin.netHYPERLINK“http：//www.strathardo。
com“www.strathardo.comMobile：+44（0）7786 917603 -----原始消息-----来自：HYPERLINK”mailto：kolopipo@yahoo.com“fdg Fgj To：HYPERLINK”mailto：vrf @ agilent
.com“VRF发送时间：2008年9月25日星期四1:07 AMS主题：[vrf]对信号进行小波变换我试图对某些输入信号进行小波变换，但我不能使用matlab脚本，因为我只允许使用
VEE学生版。
小波变换中的公式过于复杂，我认为甚至无法用VEE编写.VEE本身得到fft（快速傅里叶变换）但没有WT（小波变换）。
无论如何，我想在VEE打开fft的编码，以便做我自己的WT，但无济于事。
请帮忙。
谢谢.---您目前订阅了vrf：allan.strathardo@virgin.net要订阅，请发送电子邮件至：“vrf-request@lists.it.agilent.com”，邮件正文中包含subscribe一词。
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     以下为原文

  Are you interested in DWT (discrete wavelet trasform) or CWT (continuous wavelet transfrom)?
 
Allan A Thomson   CEng MIMechE
HYPERLINK "mailto:allan.strathardo@virgin.net"allan.strathardo@virgin.net
HYPERLINK "http://www.strathardo.com"www.strathardo.com
Mobile: +44 (0)7786 917603

----- Original Message -----
From: HYPERLINK "mailto:kolopipo@yahoo.com"fdg Fgj
To: HYPERLINK "mailto:vrf@agilent.com"VRF
Sent: Thursday, September 25, 2008 1:07 AM
Subject: [vrf] Doing wavelet transformation on signals

I am trying to do wavelet transformation on some input signals but I can't use matlab script because I am only allowed to use VEE student version. The formula in wavelet transform is too complex which I think can't even be written in VEE.The VEE itself got fft(fast Fourier Transform) but does't have WT(wavelet transform). Anyway I thought of opening the coding for fft in VEE in order to do my own WT but to no avail. Pls help. Thanks.
     

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您好，从您之前的问题来看，您似乎想要进行简单的一维离散小波变换。可以使用嵌套的FOR循环结构在Vee（或任何语言）中轻松快速地实现这些变换（以及其他人在之前的帖子中提供的信息）
这个论坛的用户。）一个简单的谷歌搜索“什么是小波变换”产生以下链接：http：//en.wikipedia.org/wiki/Discrete_wavelet_transformhttp：//users.rowan.edu/~polikar/WAVELETS/WTtutorial
.htmland如果您详细阅读，以下内容可能也很有用：http：//www.ebi.ac.uk/~gpau/misc/dwt97.c请注意，对于大多数快速数值转换方法，“由于分解过程，
输入信号必须是2n的倍数，其中n是电平数。“
（可能需要用0填充数组数据。）如果您不熟悉或不理解DWT算法（以及FFT和大多数其他常见类型的数学分析算法），我会推荐您使用任何版本的“数字食谱”
“。
如果你是一名工科学生，你应该已经拥有了这份副本，虽然早期版本是免费的在线http://www.tr.com/Good运气好，最好的问候，Preston YoungSenior电气工程师Photodigm Inc.Richardson，TX
75081此信息仅供其所针对的个人或实体使用，并且可能包含机密和/或特权材料。
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未经授权拦截此电子邮件违反了联邦刑法.-----原始消息-----来自：HYPERLINK“mailto：kolopipo@yahoo.com”fdg Fgj To：HYPERLINK“mailto：vrf @ agilent
.com“VRF发送时间：2008年9月24日星期三7:07 PMS主题：[vrf]对信号进行小波变换我正在尝试对某些输入信号进行小波变换，但我不能使用matlab脚本，因为我只允许使用
VEE学生版。
小波变换中的公式过于复杂，我认为甚至无法用VEE编写.VEE本身得到fft（快速傅里叶变换）但没有WT（小波变换）。
无论如何，我想在VEE打开fft的编码，以便做我自己的WT，但无济于事。
请帮忙。
谢谢.---您目前订阅了vrf：web51_pyoung@mail25.7p-1.com要订阅，请发送电子邮件至：“vrf-request@lists.it.agilent.com”，并在邮件中添加“subscribe”字样
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     以下为原文

  Hello,
 
From your previous questions, It appears that you want to do simple 1D discrete wavelet transforms.
These can be easily and quickly imlemented in Vee (or any language) with nested FOR loop structures (and the information kindly provided in previous posts by the other users of this forum.)
 
A simple google search of "What are wavelet transforms" yields the following links:
http://en.wikipedia.org/wiki/Discrete_wavelet_transform
http://users.rowan.edu/~polikar/WAVELETS/WTtutorial.html
and if you read in detail, the following is probably also useful:
http://www.ebi.ac.uk/~gpau/misc/dwt97.c
 
Note that for most fast numerical transform methods, "Due to the decomposition process, the input signal must be a multiple of 2n where n is the number of levels." (Padding the array data with 0's may be necessary.)
 
If you are not familiar or do not understand the DWT algorithms (as well as the FFT and most other common types of math analysis algorithms), I refer you to any version of "Numerical Recipes."  If you are an engineering student, you should already own a copy of this, although the earlier revisions are free online.
http://www.nr.com/
 
Good luck, and best regards,
 
Preston Young
Senior Electrical Engineer
Photodigm Inc.
Richardson, TX 75081
 
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----- Original Message -----

From: HYPERLINK "mailto:kolopipo@yahoo.com"fdg Fgj
To: HYPERLINK "mailto:vrf@agilent.com"VRF
Sent: Wednesday, September 24, 2008 7:07 PM
Subject: [vrf] Doing wavelet transformation on signals

I am trying to do wavelet transformation on some input signals but I can't use matlab script because I am only allowed to use VEE student version. The formula in wavelet transform is too complex which I think can't even be written in VEE.The VEE itself got fft(fast Fourier Transform) but does't have WT(wavelet transform). Anyway I thought of opening the coding for fft in VEE in order to do my own WT but to no avail. Pls help. Thanks.
     

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尝试一些附加，取决于您是否希望使用DWT分析其系数或过滤和重建信号。
我删除了用于显示三维图形的matlab位。如果你对DWT进行了一些研究，你会很快掌握它，请阅读Paul S Addison的“插图小波变换手册”。
国际标准书号0 7503 0692 0.我有更复杂的例子，但他们在不同阶段使用matlab.Allan A Thomson CEng MIMechEHYPERLINK“mailto：allan.strathardo@virgin.net”allan.strathardo@virgin.netHYPERLINK“http：//www.strathardo
.com“www.strathardo.comMobile：+44（0）7786 917603 -----原始消息-----来自：HYPERLINK”mailto：kolopipo@yahoo.com“fdg Fgj To：HYPERLINK”mailto：allan。
strathardo@virgin.net“Allan（home）发送时间：2008年9月25日星期四7:33 PMS主题：Re：[vrf]对信号进行小波变换我对DWT尤其是Daubechies Wavelet感兴趣。
我不能使用matlab，所以对我来说这个转换有点困难.--- 2008年9月25日星期四，Allan（家）写道：来自：Allan（家）主题：回复：[vrf]做
信号上的小波变换：“fdg Fgj”，“VRF”日期：2008年9月25日，星期四，6：11 PMA你对DWT（离散小波变换）或CWT（连续小波变换）感兴趣吗？Allan A Thomson CEng MIMechEHYPERLINK“mailto
：allan.strathardo@virgin.net“allan.strathardo@virgin.netHYPERLINK”http://www.strathardo.com“www.strathardo.comMobile：+44（0）7786 917603 -----原始信息---
- 来自：HYPERLINK“mailto：kolopipo@yahoo.com”fdg Fgj To：HYPERLINK“mailto：vrf@agilent.com”VRF发送时间：2008年9月25日星期四1:07 AMS主题：[vrf]对信号进行小波变换
我试图对一些输入信号进行小波变换，但我不能使用matlab脚本，因为我只允许使用VEE学生版。
小波变换中的公式过于复杂，我认为甚至无法用VEE编写.VEE本身得到fft（快速傅里叶变换）但没有WT（小波变换）。
无论如何，我想在VEE打开fft的编码，以便做我自己的WT，但无济于事。
请帮忙。
谢谢.---您目前订阅了vrf：allan.strathardo@virgin.net要订阅，请发送电子邮件至：“vrf-request@lists.it.agilent.com”，邮件正文中包含subscribe一词。
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     以下为原文

  Try some of the attached, depending on if you wish to use the DWT to analyse its coeficients or to filter and reconstruct a signal. I removed the matlab bits used to display 3d plots etc. if you have studied the DWT a bit you will get your head around it very quickly,
 
Try reading "The illustrated wavelet transform handbook" by Paul S Addison.  ISBN 0 7503 0692 0.
 
I have more sophisticated examples but they use matlab at various stages.
 
Allan A Thomson   CEng MIMechE
HYPERLINK "mailto:allan.strathardo@virgin.net"allan.strathardo@virgin.net
HYPERLINK "http://www.strathardo.com"www.strathardo.com
Mobile: +44 (0)7786 917603

----- Original Message -----
From: HYPERLINK "mailto:kolopipo@yahoo.com"fdg Fgj
To: HYPERLINK "mailto:allan.strathardo@virgin.net"Allan (home)
Sent: Thursday, September 25, 2008 7:33 PM
Subject: Re: [vrf] Doing wavelet transformation on signals

I am interested in DWT especially Daubechies Wavelet. I can't use matlab so is a bit tough for me to do this transformation.

--- On Thu, 9/25/08, Allan (home) wrote:


From: Allan (home)
Subject: Re: [vrf] Doing wavelet transformation on signals
To: "fdg Fgj" , "VRF"
Date: Thursday, September 25, 2008, 6:11 PM


Are you interested in DWT (discrete wavelet trasform) or CWT (continuous wavelet transfrom)?
 
Allan A Thomson   CEng MIMechE
HYPERLINK "mailto:allan.strathardo@virgin.net"
allan.strathardo@virgin.net
HYPERLINK "http://www.strathardo.com"
www.strathardo.com
Mobile: +44 (0)7786 917603

----- Original Message -----
From: HYPERLINK "mailto:kolopipo@yahoo.com"
fdg Fgj
To: HYPERLINK "mailto:vrf@agilent.com"
VRF
Sent: Thursday, September 25, 2008 1:07 AM
Subject: [vrf] Doing wavelet transformation on signals

I am trying to do wavelet transformation on some input signals but I can't use matlab script because I am only allowed to use VEE student version. The formula in wavelet transform is too complex which I think can't even be written in VEE.The VEE itself got fft(fast Fourier Transform) but does't have WT(wavelet transform). Anyway I thought of opening the coding for fft in VEE in order to do my own WT but to no avail. Pls help. Thanks.
     

--- You are currently subscribed to vrf as: allan.strathardo@virgin.net To subscribe please send an email to: "vrf-request@lists.it.agilent.com" with the word subscribe in the message body. To unsubscribe send a blank email to "leave-vrf@it.lists.it.agilent.com". To send messages to this mailing list, email "vrf@agilent.com". If you need help with the mailing list send a message to "owner-vrf@it.lists.it.agilent.com". Search the "unofficial vrf archive" at "http://www.vrfarchive.com/vrf_archive". Search the Agilent vrf archive at "http://vee.engineering.agilent.com".



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