From gsato@unam.mx Mon Jan 08 10:58:56 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!unam!gsato From: gsato@unam.mx (Göran Sato) Newsgroups: comp.dsp Subject: Question: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996Jan08.105856.4638@unam.mx> Date: Mon, 08 Jan 1996 10:58:56 GMT Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: TIN [version 1.2 PL2] Lines: 11 Differential Binary Phase Shift Keying (DBPSK) parameter extraction results. Each message frame begins with an 8-bit Barker sequence [11100010] for frame synchronization. The symbol duration is exactly 1.408 seconds, corresponding to a symbol rate of 0.7107 baud (14.2 Hz / 20). When all 14 rows are assembled, the matrix forms an 80-column ASCII status report. -- Göran Sato "5 sigma is a discovery. 7 is a question." 486DX4/100 (FreeBSD 2.0.5) / System 7.5.1 From ksokolov@u-tokyo.ac.jp Wed Jan 10 12:56:56 1996 Path: ashpoly!cascade!transat!ukc!fennimore!u-tokyo!ksokolov From: ksokolov@u-tokyo.ac.jp (Kirsty Sokolov) Newsgroups: comp.dsp Subject: Re: Question: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996Jan10.125656.9269@u-tokyo.ac.jp> Date: Wed, 10 Jan 1996 12:56:56 GMT References: <1996Jan08.105856.4638@unam.mx> Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1996Jan08.105856.4638@unam.mx>, gsato@unam.mx (Göran Sato) writes: > Differential Binary Phase Shift Keying (DBPSK) parameter extraction results. A symbol rate of 0.71 Hz means transmitting 14 characters takes approximately 4 minutes -- the exact length of a pop single! Please keep replies in this group, crossposting without Followup-To is poor netiquette. -- Kirsty Sokolov Tape trading list upon request. SASE required for international mail. From bnilsson@demon.co.uk Fri Jan 12 10:50:56 1996 Path: ashpoly!bigsur!pacrim!krgate!eunha!demon!bnilsson From: bnilsson@demon.co.uk (Bruno Nilsson) Newsgroups: comp.dsp Subject: Re: Question: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996Jan12.105056.9102@demon.co.uk> Date: Fri, 12 Jan 1996 10:50:56 GMT References: <1996Jan08.105856.4638@unam.mx> <1996Jan10.125656.9269@u-tokyo.ac.jp> Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: WinVN 0.99.5 Lines: 8 In article <1996Jan10.125656.9269@u-tokyo.ac.jp>, ksokolov@u-tokyo.ac.jp (Kirsty Sokolov) writes: > A symbol rate of 0.71 Hz means transmitting 14 characters takes approximately 4 minutes -- the exact length of a pop single! Every song on SYNTHESIS was engineered to be exactly long enough to transmit one complete telemetry frame. -- Bruno Nilsson Tape trading list upon request. SASE required for international mail. From kstewart@clari.net Fri Jan 12 20:47:56 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!clari!kstewart From: kstewart@clari.net (Karen Stewart) Newsgroups: comp.dsp Subject: Re: Question: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996Jan12.204756.1257@clari.net> Date: Fri, 12 Jan 1996 20:47:56 GMT References: <1996Jan08.105856.4638@unam.mx> <1996Jan10.125656.9269@u-tokyo.ac.jp> Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.net X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1996Jan10.125656.9269@u-tokyo.ac.jp>, ksokolov@u-tokyo.ac.jp (Kirsty Sokolov) writes: > A symbol rate of 0.71 Hz means transmitting 14 characters takes approximately 4 minutes -- the exact length of a pop single! > Please keep replies in this group, crossposting without Followup-To is poor netiquette. A symbol rate of 0.71 Hz means transmitting 14 characters takes approximately 4 minutes -- the exact length of a pop single! -- Karen Stewart "Hardware is temporary. The signal survives." Sun 3/60 (SunOS 4.1.1) / System 7.5.1