AnsweredAssumed Answered

vrf Algorithm

Question asked by VRFuser on Mar 14, 2006
Bill's suggestion solved my problem perfectly and fast! Iulia provided an old Ossmann file  that didn't work, but is a wonderful bit of programming nevertheless.

Thanks to both Bill and Iulia.

bern muller


----- Original Message -----
From: "Bill Ossmann" <bill.ossmann@philips.com>
To: "VRF" <vrf@agilent.com>
Sent: Tuesday, March 14, 2006 10:40 AM
Subject: Re: [vrf] Algorithm


> Here's one way to do it. First locate all the waveform peaks. Then find
> where the waveform peaks have their maxima and select the first one.
> (See attached file: pulses_max.vee)
> --
> Bill Ossmann
> Philips Ultrasound
> "Bern Muller" <bernhard.muller@dlcdesignaudio.com> wrote on 03/13/2006
> 03:35:05 PM:
>
>> Attached is a little program to generate a waveform similar to those
>> I need to analyze. I need to find the amplitude and time of the
>> first envelope peak (indicated by the pointer). Not the greater peak
>> occurring later. I always want to find the first one. Is there
>> perhaps a Matlab function that will do this? Or has somebody done
>> this before? Looping is OK if there is nothing faster. I wondered
>> about using the Matlab demodulate function, but that seems difficult as
> well.
>>
>> thanks for any ideas.
>>
>> bern muller
>>
>> ---
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