<Do you have clear overhead view of the animal enclosure? Why not optical tracking via one or more video cameras?>
Yes, a very simple practical approach - thank you!
< Some of us may be concerned that your requirements push the limits of the state of the art, but your questions are relatively basic. >
No intention of pushing the state of the art, only to define the limits of standard process.
< write a spec>
Yes. I will, though for now:
Range: 800mm...
<https://www.mysick.com/partnerPortal/ProductCatalo...
I've never been clear how Sick does it; I presume it's doing an FMCW approach.>
Thank you for this lead, FMCW appears to be very relevant.>
< 2. Triangulation uses ASA to determine range, without using wavelength whatsoever. >
Surely, Triangulation need not be limited to ASA? Putting aside Wavelenght, what is the most expedient way of finding distance?
< At a previous job we tested something like this on a very large scale (though the transponder was about the size of a thumb/flash drive) and it worked very well. >
Can I ask, what was the means for determination of distance from transponders, was it Radiolocation involving RSSI, TOA and AOA...
< you'll have to find this theory and show it to us. If I have a radio wave with strength 2V/m and wavelength 300mm how do I determine how far the transmitter is from me? >
1. Take the case where the 300mm wave starts at peak amplitude, and arrives at the receiver 180 degrees out of phase...
<<"If the amplitude could be measured and the wavelenght is known then * in theory * it ought to be possible to measure how many wavelengths (and parts thereof) the distance is."
Well, then I'm afraid you'll have to find this theory and show it to us. If I have a radio wave with strength 2V/m...
<Wavelength has nothing to do with measured distance. Wavelength MIGHT tell you something about velocity, but only if you know what the transmitted wavelength is.>
If the amplitude could be measured and the wavelenght is known then * in theory * it ought to be possible to measure how many...
< Check out differential GPS for an off the shelf solution. >
Thank you for this suggestion, though I am looking for something very short range, within a a few metres of the receiver and very very accurate positioning (within a few mm)
No, of course not. I am not suggesting the wavelenght is determined by the distance, I wish to do the opposite, to determine the distance, given that I know the wavelenght,
Hello
Is it possible to determine the distance to a transmitter, from receiver by analysing the wavelength of the signal received?
For example, this process used to determine the location of an airplane. However, is it possible to use the same principles to determine distance or location in a...
