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Hi Guru(s),
In Energy Detector (ED), I choose a window of observation, and collect how much energy is there (=integrate for that interval)
How do I figure out "start time" for each observation? In other words, in multipath environment, how do I calculate initial delay (tau0)
I have a ray...
Hello There,
I am trying to learn how to calculate power delay profile in a ray-tracing situation like this:
3-Dimensional room, Origin (0, 0, 0) at a corner.
room_dim = [ 2 3 2] ;
receiver_pos = [ 0 1 1 ] ; src_pos = [ 1 1 1 ] ;
(distance between the Tx and Rx is sqrt((1-0)**2 + (1-1)**2 +...
Thank you, Mityan.
You made may day.
I will have to abandon the idea of using CIR then. I need to use ED because the environment I am thinking is heavy with multipath and scattering.
Cheers.
In the context of Ultra Wideband, an Energy Detector (ED) collects energy (which is just amplitude squared) from within what they call "integration window". By the time everything is done, we only have a single numeric value, and we we use some kind of threshold to decide whether that is...
No, I am sure there are papers using "order of reflection" and meaning how many times a ray is bounced before reaching its destination.
https://www.cs.umd.edu/~djacobs/CMSC427/RayTracing.pdf
mentions some "order", but still confusing.
This one too...
In acoustics or ray tracing or may be even geometry, what is meant by "order of reflection"?
Say, I have a ray or sound source ("transmitter"), and a sink or receiver or microphone at the other end.
When I say, I want to consider only first order reflection, I understand it means a ray/path...
Dear Santosh,
"Understanding Ultra Wide Band Radio Fundamentals", though not "ebook", has many matlab samples.
The sample sources are available from the publishers page. Please Google it.
Re: Hello Wideband/UWB Gurus, how to measure "energy samples" from Energy Detector?
Hi OxEthan:
I think IEEE 802.15.4a channel model is not applicable in my case. I think the channel model in my last post is the best fit...
I just don't know how to code that channel model into Matlab or C or...
Re: Hello Wideband/UWB Gurus, how to measure "energy samples" from Energy Detector?
OxEthan: thank you. I will check that book.
The energy detector seems to measure amplitude.. but what do I know.
Actually, I also found a propagation model just for this kind of situation. Here...
Re: Hello Wideband/UWB Gurus, how to measure "energy samples" from Energy Detector?
I know that the TPMS have been here for a while. But I haven't found any systems that use UWB.
FSK: 434
**broken link removed**
ASK: 315, 433, 868MHz carriers
https://www.sensorland.com/HowPage040.html
I...
Re: Hello Wideband/UWB Gurus, how to measure "energy samples" from Energy Detector?
First, the energy detector:
I don't know anything about it myself (yet)-- I decided to use this because literature say that it is less complex and thus good for an application in my mind.
Found the following...
Hello Wideband/UWB Gurus, how to measure "energy samples" from Energy Detector?
(Under a vehicle's belly, ) I attach a sensors (which act like a Tx) to the vehicle's tires- one sensor for each tire. As the vehicle moves, tire revolves and makes a circular "region". I have a dedicated receiver...
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