Wavelets....

[Peter]

Is anyone working with wavelets and LabView processing toolkit?
I loose my last hair on this topic, so i could need some contact to another
victim :-).
Please email me, my native language is german, english is ok too.
Greetings, Peter

[Sam Shearman]

Peter,

I'm the product manager for signal processing software for National Instruments
and I've worked with the Toolset you mention. I'd be happy to help (or at
least find someone who can.) Please feel free to email with your questions
/ comments about the toolset.

--Sam


"Peter" wrote:
>>Is anyone working with wavelets and LabView processing toolkit?>I loose
my last hair on this topic, so i could need some contact to another>victim
:-).>Please email me, my native language is german, english is ok too.>Greetings,
Peter

[artur]

I need some help too. The qestion is: How to convert scale to frequencies (pseudofrequencies) using DWT and/or CWT.
Thanks.
Artur

[Lektronico]

I need to know how compress data (wave form) using wavelets and send compressed data over RS232

[altenbach]

---

@Lektronico wrote:

I need to know how compress data (wave form) using wavelets and send compressed data over RS232

---

(Have you noticed the age of this thread??)

You probably need to provide more details.

I guess you are looking for lossy compression. Is the signal sparse in frequencies? How does it vary over time? What kind of information needs to be retained? Why would it matter how you transmit it? Do you have the wavelet toolkit?

[mcduff]

---

@altenbach wrote:

---

---

(Have you noticed the age of this thread??)

---

Until you and I posted, everyone else on this thread only had 1 post! Not a lively group of people.

mcduff

[Lektronico]

Hi altenbach...

To be honest I don’t have much experience with wavelets, as far as I know we can use for data compression... the signal is coming from a pressure transducer in the range of 0 to 100PSI and varies over time, this signal is noisy, and we use a gps timestamp

gps_timestamp      pressure

1550707199827    26.74

1550707203498    27.22

1550707206554    27.03

My intention is sending an array of 300 pressure points it respective gps timestamp, as reduced as possible.

Regards

[altenbach]

Well, all you need is filtering and decimation. Wavelets might be too fancy for that.

Again, you haven't told us anything about the signal. How do you distinguish noise from interesting data? How quickly does the signal change over time? what's the color of the noise?