[mailto:discuss-gnuradio-bounces+ralph=schmid@gnu.org] On Behalf Of Jawad
Seddar
Sent: Friday, 08 January, 2016 23:24
To: GNURadio Discussion List
Subject: Re: [Discuss-gnuradio] Trigger 5GHz-WLAN radar detection?
I managed to find an old document that details the output from the driver and
the pulses
you can start to detect the delta time of the pulses, but please also
consider the usual staggering of about 8% in Delta t.
interval times are definitely not constant in order to allow to
distinguish between second time round signals that fall into the next
pulse period, i.e. which come from outs
I managed to find an old document that details the output from the driver
and the pulses I generated.
I tried it with 2 different pulse characteristics :
- Pulse width of 15 μs and PRF equal to 1000 Hz
- Pulse width of 15 μs and PRF equal to 3000 Hz
Image below details the second signal (PRF = 3kH
Hi Ralph,
I did this 2 and half years ago and I basically followed the directions in
pages 60-61 of the ETSI document linked by Marcus to generate the signals.
By watching the channel on which the WiFi card was operating, I generated
the signal at the right frequency and I could see the card chan
Hi Ralph,
hm; depends, I think.
So, there's two things:
If you're referring to a channel switch announcement, that can be part
of a management frame [1]. But I think it can also be part of a beacon
frame. Or a probe response frame.
Luckily, 802.11 is not confusing the least.
Blind guess is that y
Hi,
Does anybody know how a signal must look to trigger a 5 GHz WLAN for a
frequency change? I intend testing this feature by transmitting a radar-like
signal with gnuradio, but for this I should know how this detection works,
how such a signal does look :)
Ralph.
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