|
From: | Sebastian Müller |
Subject: | Re: [Discuss-gnuradio] gr-radar and FMCW radar imlementation for measuring range with high resolution |
Date: | Thu, 8 Feb 2018 10:02:07 -0800 |
Hi Tilen, Am 8. Februar 2018 um 16:31:37, Tilen Matkovič (address@hidden) schrieb:
Generally I’m not sure if you will achieve this with the B210 hardware you mention later. Keep in mind the range resolution equation for radar: dr >= c/(2*B) For a range resolution of 1 cm you’ll need a signal bandwidth of 15 GHz [1], while the URSP has a maximum frequency coverage of up to 6 GHz, which means your center frequency plus half the bandwidth must be less equal 6 GHz. Common radars, for instance in automotive applications, work on a center frequency near 100 GHz, allowing much higher bandwidths!
I’m not aware of any other projects, but I’ve used gr-radar myself. It definitely works in the real world, which you can see on Stefan’s Youtube channel [2].
The original setup for gr-radar consisted of two USRP N210, connected with a MIMO cable. It never ran on a B10, though there were some attempts, that seem to never have been further pursued [3]. Also, since you’re using omnidirectional antennas with FMCW, you’ll detect a lot of static objects in *all* azimuth angles, while gr-radar was designed for one target only IIRC. So assuming it theoretically could work on a B210 (please let us know!!), I would propose to use beam antennas and try to use the dual CW waveform, which only detects moving objects. Let us know about any progress :)
Regards, |
[Prev in Thread] | Current Thread | [Next in Thread] |