From: Zefir Kurtisi <zefir.kurtisi@neratec.com>
To: Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de>
Cc: linux-wireless <linux-wireless@vger.kernel.org>,
ath9k-devel@lists.ath9k.org, rodrigue@qca.qualcomm.com,
adrian@freebsd.org, nbd@openwrt.org, jonbither@gmail.com,
kgiori@qca.qualcomm.com, mathias.kretschmer@fokus.fraunhofer.de,
Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Subject: Re: [RFCv2] Add spectral scan support for Atheros AR92xx/AR93xx
Date: Tue, 18 Dec 2012 17:02:52 +0100 [thread overview]
Message-ID: <50D093AC.9020501@neratec.com> (raw)
In-Reply-To: <20121218134611.GA7053@pandem0nium>
On 12/18/2012 02:46 PM, Simon Wunderlich wrote:
> [...]
>
> Yes, that helped very much, especially the varying data part was something I had no
> clue about. This might also fix the "weird high numbers in the middle of the dump"
> problem I was seeing.
>
If you mean the bin at center frequency, it is because spectral is blind there. To
remove discontinuity, that bin is interpolated, see line
+ // DC value is invalid -> interpolate
+ *dc_pwr = (dc_pwr[-1] + dc_pwr[1]) / 2;
> I'll change the patch according to your explanations, so that only 56 byte data samples
> are returned (at least for HT20).
>
> Thank you very much!
> Simon
>
Good luck!
Zefir
next prev parent reply other threads:[~2012-12-18 16:02 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-06 16:36 [ath9k-devel] [RFCv2] Add spectral scan support for Atheros AR92xx/AR93xx Simon Wunderlich
2012-12-06 16:36 ` Simon Wunderlich
2012-12-06 16:36 ` [ath9k-devel] [RFCv2] ath9k: add spectral scan feature Simon Wunderlich
2012-12-06 16:36 ` Simon Wunderlich
2012-12-13 14:07 ` [RFCv2] Add spectral scan support for Atheros AR92xx/AR93xx Simon Wunderlich
2012-12-13 17:25 ` Felix Fietkau
2012-12-13 22:06 ` Simon Wunderlich
2012-12-13 23:04 ` Felix Fietkau
2012-12-14 0:24 ` Tobias Steinicke
2012-12-14 0:30 ` Adrian Chadd
2012-12-16 3:48 ` Adrian Chadd
2012-12-16 4:06 ` Adrian Chadd
2012-12-17 13:22 ` Simon Wunderlich
2012-12-17 18:48 ` Adrian Chadd
2012-12-18 11:08 ` Zefir Kurtisi
2012-12-18 13:46 ` Simon Wunderlich
2012-12-18 16:02 ` Zefir Kurtisi [this message]
2012-12-28 3:11 ` Adrian Chadd
2012-12-31 5:33 ` Adrian Chadd
2012-12-31 8:46 ` Simon Wunderlich
2012-12-31 14:38 ` Adrian Chadd
2012-12-31 7:48 ` Adrian Chadd
2012-12-31 8:40 ` Simon Wunderlich
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