**Heart rate calculation**Hi to all.
Is there a way to calculate heart rate?
Thanks.
On May 31, 11:50=A0am, "Luigi " <fi...@mathworks.com> wrote:
> Hi to all.
> Is there a way to calculate heart rate?
> Thanks.
Sure: Number of beats / duration of observaion.
Rune
Rune Allnor <allnor@tele.ntnu.no> wrote in message <55468fc9-8f3f-419d-b9d4-3e5d1f79cc39@a7g2000vby.googlegroups.com>...
> On May 31, 11:50 am, "Luigi " <fi...@mathworks.com> wrote:
> > Hi to all.
> > Is there a way to calculate heart rate?
> > Thanks.
>
> Sure: Number of...

**instantaneous heart rate**I have data from PhysioNet >>Apnea-ECG database and I would like to determine the Instantaneous heart rate which x axis is time(s) and y axis is heart rate (bpm).Currently, I use
...........................................................................
[t,ECG100]=plotATM('a01m.mat','a01m.info');
L=length(ECG100);
fs=100;
%-----------------------------Detect peak and IHR---------------------------------
ECG1=ECG100((1:36000));
[pks,locs]= findpeaks(ECG1,'minpeakheight',0.9); %%sec * 100 point = 36000
plot(ECG1);hold on;plot(locs,ECG1(locs),'ks...

**ECG heart rate..**Hi All, Am doing a project to calculate the heart rate using the ECG signal, I have obtained the ECG signal using DAQ 6009 and displayed the same. Heart rate can be calculated either from P-P interval or R-R interval. My queries are:1. How to calculate the time interval between two signal( p-p).2. If am measuring the p-p interval and omitting the R-R, then I ahve to detect signals in between a range(omitting anything below 0.4 and greater than0.8). How can I acheive this?If you have a better algorithm or if mine is cumbersome, I would apprecitae your help.Looking earnestly for your replies.
C...

**heart rate monitor**hi ,i wnat to make a heart rate monitor . can you help me please.
Hi Daniel,
We might be able to help.
Can you provide more details of where you need assistance? Is it to
"monitor" as in capture the ecg waveform? Is it to interpret the
q-r-s-t curves (height vs distance)? Do you simply want to "count"
the number of beats per minute? Are you interested in time between
Systole & Diastole?
Sorry for so many questions, but the more info you provide, the better
help we can (attempt) to provide.
And of course, are you doing this in LV???
-JLV-
JoeLabView <x@no.em...

**Measure damping rate**Hello Everyone,
I want to
measure damping by acquiring the damped vibration response.
In order to
do so I would need to get information about how fast the signal declines.
That
means, that I need for my calculations the peak value of at least two defined oscillation peaks
within the signal.
Does anyone know how to do so or is there another possiblity to aquire the damping rate.
Any help
greatly appreciated.
Yours
Franziskus
<a href="../view_profile?user.id=29584" target="top" class="auth_text" style="fo...

**Filtering for heart rate extraction.**hey guys, i am trying to design a filter to extract the signal of a beating=
heart from a voltage response to a 200khz sinusoid i am passing though a v=
olunteer.the 200kHz voltage response signal is sampled at 2e6 samples per s=
econd and the noise levels are around 0.8%. what would be the best approach=
to this problem assuming normal heart rate of 72 beats pre minute(1.2Hz)? =
thanks very much.
On Wed, 27 Feb 2013 06:44:08 -0800, zoulzubazz wrote:
> hey guys, i am trying to design a filter to extract the signal of a
> beating heart from a voltage response to a 200khz sinu...

**how to measure data bit rate ?**hi i am using simulink , i want to measure the bit rate at certain
point in my system , i tried using scope and measuring the bit
duration but the time axis resolution isnt good enough .... so is
there any block for bitrate calculation or there is a way to increase
the resolution of the scope time axis to measure the bit uration
accurately ?
...

**Making a Heart rate monitor** What to nut in a sliding window and take 10(1-10) (2-11) sample of heart rate and get the average, i new to labview so of any one hae any idea how to go about it would be a great help thanks
Hi gwhizz112,
do you have an array? If yes you can use the "Array subset" function and then the "Multiply Array Elements" function. Search for "average array" in the forum, there are lots of examples.
Mike
Re: Making a Heart rate monitor
Hi gwhizz112,
see this link for an example. <a href="http://forums.ni...

**measuring regression pass rate**Hi,
Is there a script available online something similar that can
connect to the database, get the regression database results and
display a graph of pass rate onto the web page.
Thanks in advance,
Regards,
VishnuMohan
...

**Can heart rate be negative?**Is it meaningful for (0018,1088) Heart Rate (beats per minute) to be negative? Being an IS (Integer String) a negative value is allowed, but how should a negative value be interpreted?
...

**Finding the heart rate from audio file**I need a matlab code to calculate the heart rate from a audio file(.wav) that i have .... in the code i must use wavread and FIR and IIR filters please help me
"yacoub saidi" wrote in message <je9mag$t1l$1@newscl01ah.mathworks.com>...
> I need a matlab code to calculate the heart rate from a audio file(.wav) that i have .... in the code i must use wavread and FIR and IIR filters please help me
===============
If it isn't on the File Exchange,
http://www.mathworks.com/matlabcentral/fileexchange/
then it's probably a tool that either does not exist or is not som...

**how to measure data bit rate ? #3**hi i am using simulink , i want to measure the bit rate at certain
point in my system , i tried using scope and measuring the bit
duration but the time axis resolution isnt good enough .... so is
there any block for bitrate calculation or there is a way to increase
the resolution of the scope time axis to measure the bit uration
accurately ?
...

**AR model for heart rate varibility**Hello,
I'm trying to implement an Autorregresive model for heart rate
variabilty. I took the coeffcients from a paper:
Javier Mateo and Pablo Laguna. Improved heart rate variability signal
analysis
from the beat occurrence times according to the ipfm model. IEEE
Transactions
on Biomedical Engineering, 2000.
I wrote these lines in Matlab
ruidoR =3D sqrt(404e-6)*randn(1,n)
ruidoI =3D sqrt(137e-6)*randn(1,n);
%Par=E1metros del modelo en Reposo
aR =3D [1 -1.6265 1.8849 -1.8327 1.2970 -0.7758 0.4133 -0.2136];
%Par=E1metros del modelo Incorporado
aI =3D [1 -1.8149 2.1365 -2.1703 1.7194 -...

**How to adjust the sampling rate during measuring with the PDA**Hello everybody,
Is there a possiblilty to show the current sampling rate on the screen
of the PDA, and can I use this value to integrate it into my
calculations. At the moment I just know how to set the sampling rate
for measurments with the PDA during I program the application.
Every help appreciated
Thank you for your reply
I am programming with LabView PDA-Modul
As Driver for my NI CF-6004 I am using the DAQmx Base 2.0.
By using the NI-DAQmx Base Task Configuration Utility I creat DAQmx Base Tasks.
This Tasks are setting the sampling rate.
In the PDA Modul there are only the D...

**how to measure data bit rate ? #2**hi i am using simulink , i want to measure the bit rate at certain
point in my system , i tried using scope and measuring the bit
duration but the time axis resolution isnt good enough .... so is
there any block for bitrate calculation or there is a way to increase
the resolution of the scope time axis to measure the bit uration
accurately ?
...

**Measuring maximum possible frame rate**Hello comp.dsp
[apologies if this is a little OT, but this feels like the highest SNR
group in the general area]
I am optimizing software that runs on a mobile phone for performance.
As part of this excercise, I am looking for an objective way to
measure how fast (in frames per second) my application can render
animation to the display hardware without some part of the software
stack silently dropping frames (no jerky animations for the end
user) .
Since we are talking 30 frames per second (and sometimes higher)
territory here, purely visual testing is not feasible. Also, due to
the complex...

**heart rate calculation from edf file**Hi to all,
I've an EDF file with ecg channel, how can I calculate heart rate from this channel?
Thanks to all.
Luigi
"Luigi " <files@mathworks.com> wrote in message <iqrdoe$nbm$1@newscl01ah.mathworks.com>...
> Hi to all,
> I've an EDF file with ecg channel, how can I calculate heart rate from this channel?
> Thanks to all.
> Luigi
Is your problem in reading the EDF file into MATLAB, or in calculating the heart rate from the data once you have read it into MATLAB?
Wayne
"Luigi " <files@mathworks.com> wrote in message <iqrdoe$nbm$1...

**degree of overlap/overlap rate measurement**Can anyone please tell me how to measure degree of overlap/overlap rate between two clusters of cells?
...

**Length and width measurement of the heart chamber**Hey,
i m working on fetal ultrasound heart images..i am done with segmentation..after that i got to measure the length and width of each chamber..i tried using regionprop..doesn't help much as it is an irregular shaped image..can someone help me with this?
"vishnu " <kpk848@gmail.com> wrote in message <jhbb4b$og5$1@newscl01ah.mathworks.com>...
> Hey,
>
> i m working on fetal ultrasound heart images..i am done with segmentation..after that i got to measure the length and width of each chamber..i tried using regionprop..doesn't help much as it is an i...

**AR model for heart rate varibility**Hello,
I'm trying to implement an Autorregresive model for heart rate
variabilty. I took the coeffcients from a paper:
Javier Mateo and Pablo Laguna. Improved heart rate variability signal
analysis
from the beat occurrence times according to the ipfm model. IEEE
Transactions
on Biomedical Engineering, 2000.
I wrote these lines in Matlab
ruidoR =3D sqrt(404e-6)*randn(1,n)
ruidoI =3D sqrt(137e-6)*randn(1,n);
%Par=E1metros del modelo en Reposo
aR =3D [1 -1.6265 1.8849 -1.8327 1.2970 -0.7758 0.4133 -0.2136];
%Par=E1metros del modelo Incorporado
aI =3D [1 -1.8149 2.1365 -2.1703 1.7194 -...

**FS: Vernier Heart Rate monitor**
If you have MPLI or Mac serial box, you can use vernier probes.
In this case, I have the Apple II software for the heart probe as well
as the monitor - which displays hearts rate & rhythm - taken via an ear
clip. Seems so cools for an Apple II to do this & as my heart is in
apple II, I'm offering here first - $25 for the hardware & software.
If that doesn't seem fair, it will show up on ebay eventually! I also
have a few other probes, so email if interested - OTOH, it may be that
no one even *has* the board you need to run this stuff (?!!?)
-Louis
...

**Problem using ANFIS for Heart Rate Identification**Hello,
I have NARX model and i used Akaike criterion and i estimate na=15,nb=2 and nk=4.
My data are for 8 subjects the blood pressure(BP) and the heart rate (HR).
BP=input,HR=output
So for each of 8 subjects i have matrix HR1[1X450000] BP1[1X450000]
. .
. .
HR8[1X450000] BP8[1X450000]
I want to use ANFIS for model estimation so my inputs wil be na+nb=17 a...

**Palm software for Polar heart rate monitor?**Hi,
I would like to import data from a Polar heart rate monitor (S610 with
USB infrared link) into my Palm. Is there any Palm training software
available with that capability?
Kind regards,
--
Roger Troost
ProNews2 / eComStation
Visit OS/2 Java Corner at
http://home.hccnet.nl/rjj.troost/japp4os2.htm
...

**Frame Time and Heart rate in ultrasound study**Hello
Recently few doctors complain that an ultrasound study transferred from
a new echo cart runs slowly in my software. It runs at 30 FPS in my
software where as it runs at 52 FPS on that echo cart.
So I studied all the DICOM Tags by using which we calculate the frame
rate. The frame time in all the shoots from that study was mentioned as
33.33 so FPS should be 1000/33.33 = 30FPS. This is my logic of
calculating the FPS.
The heart rate in each of the run is different and it ranges from 53 to
64. Surprisingly number of frames in each run are same(61). All other
parameters, acq...