From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kalle Valo Date: Sat, 11 Jul 2015 16:52:37 +0000 (UTC) Subject: [ath9k-devel] ath9k: DFS - add pulse chirp detection for FCC In-Reply-To: <1434451936-8545-1-git-send-email-zefir.kurtisi@neratec.com> Message-ID: <20150711165237.57D4513F6AC@smtp.codeaurora.org> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: ath9k-devel@lists.ath9k.org > FCC long pulse radar (type 5) requires pulses to be > checked for chirping. This patch implements chirp > detection based on the FFT data provided for long > pulses. > > A chirp is detected when a set of criteria defined > by FCC pulse characteristics is met, including > * have at least 4 FFT samples > * max_bin index moves equidistantly between samples > * the gradient is within defined range > > The chirp detection has been tested with reference > radar generating devices and proved to work reliably. > > Signed-off-by: Zefir Kurtisi Thanks, applied to wireless-drivers-next.git. Kalle Valo