Return-Path: Received: (qmail 22542 invoked from network); 1 Dec 2000 15:44:27 -0000 Received: from unknown (HELO murphys-inbound.servers.plus.net) (212.159.14.225) by 10.226.25.101 with SMTP; 1 Dec 2000 15:44:27 -0000 Received: (qmail 22517 invoked from network); 1 Dec 2000 15:47:08 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by murphys with SMTP; 1 Dec 2000 15:47:08 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.16 #1) id 141sHS-00067B-00 for rsgb_lf_group-outgoing@blacksheep.org; Fri, 01 Dec 2000 15:39:22 +0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from d06lmsgate-3.uk.ibm.com ([195.212.29.3]) by post.thorcom.com with esmtp (Exim 3.16 #1) id 141sHH-000672-00 for rsgb_lf_group@blacksheep.org; Fri, 01 Dec 2000 15:39:14 +0000 Received: from d06relay01.portsmouth.uk.ibm.com (d06relay01.portsmouth.uk.ibm.com [9.166.84.147]) by d06lmsgate-3.uk.ibm.com (1.0.0) with ESMTP id PAA52832 for ; Fri, 1 Dec 2000 15:30:12 GMT X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from usa.net (ss6.bld.socks.ibm.com [9.14.4.71]) by d06relay01.portsmouth.uk.ibm.com (8.8.8m3/NCO v4.95) with ESMTP id PAA112706 for ; Fri, 1 Dec 2000 15:38:24 GMT Message-ID: <3A27C5B1.74B04845@usa.net> Date: Fri, 01 Dec 2000 16:37:21 +0100 From: "Alberto di Bene" Organization: Undisclosed X-Mailer: Mozilla 4.76 [en] (Win95; U) X-Accept-Language: en MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org Subject: Re: LF: Synchronised QRSS : another (stupid ?) idea References: <3.0.1.16.20001201145804.2c971846@mail.cc.kuleuven.ac.be> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Rik Strobbe wrote: > [snip] > If the FFT window slides over a transmitted dot the FFT result (for that > specific frequency) will increase, reach a maximum when the FTT bin > completely overlaps with the dot and then will decrease again. With other > words, a certain pattern will be created and if we know when the dot begins > (synchronisation) and the duration of the dot it might be possible to do a > kind of pattern recognition. > [snip] Rik, IMHO, if the SNR is high enough to allow for such a pattern recognition, then you won't have any need for it... if the goal is to be able to extract dots and dashes from static crashes, it is hard to beat the pattern recognition features of the humain brain. But I may be plainly wrong (it happened before...) 73 Alberto I2PHD