From mtakahashi@pipeline.com Sat Aug 12 12:53:06 1995 Path: ashpoly!cascade!transat!ukc!fennimore!pipeline!mtakahashi From: mtakahashi@pipeline.com (Mike Takahashi) Newsgroups: comp.dsp Subject: [FLAME] DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Aug12.125306.6756@pipeline.com> Date: Sat, 12 Aug 1995 12:53:06 GMT Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com X-Newsreader: Netscape 1.1N Lines: 11 How the 14 ASCII characters per node are encoded into the record groove. The symbol duration is exactly 1.408 seconds, corresponding to a symbol rate of 0.7107 baud (14.2 Hz / 20). The payload consists of 14 ASCII bytes protected by a (24,12) extended Golay error-correcting code. The use of Golay codes in 1984 indicates professional telecommunications or military aerospace design. -- Mike Takahashi *PLONK* filter active for trolls. Mac IIci / 68882 FPU - NetBSD 1.0 From fsmirnov@hanse.de Sun Aug 13 14:28:06 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!hanse!fsmirnov From: fsmirnov@hanse.de (Freya Smirnov) Newsgroups: comp.dsp Subject: Re: [FLAME] DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Aug13.142806.6031@hanse.de> Date: Sun, 13 Aug 1995 14:28:06 GMT References: <1995Aug12.125306.6756@pipeline.com> Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de X-Newsreader: WinVN 0.99.5 Lines: 11 In article <1995Aug12.125306.6756@pipeline.com>, mtakahashi@pipeline.com (Mike Takahashi) writes: > How the 14 ASCII characters per node are encoded into the record groove. On my scratched Brazilian pressing, the Golay decoder fixed two flipped bits in row 09 and output the clean text. Top-posters will be placed in my ~/.killfile without notice. -- Freya Smirnov Opinions expressed are solely my own and not those of Hanse-Netzwerk Hamburg. ------------------------------------------------------------