| Presentation | 1993/11/19 A Study on Economical RF ODU for 10Mbps Digital Signal Transmission Koji Yamamoto, Takumi Tashiro, Yasunori Yamashita, Kohei Ohata, Hideki Mizuno, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A low cost satellite communication earth station is strongly demanded to make the satellite communication more widely used.This paper focused on the Ku-band local oscillator(LO)and studied about the possibility to use the′low cost oscilator′DRO,instead of the highly stabilized ′expensive oscillator′ such as PLO on usual ear th station. First of all,the characterisfics of the phase noise and the temperature stability of the DRO are evaluated theoretically then the available transmission rate is suggested.Then,as the LO of the RX,the DRO build in′consumer use′LNB(CS-receiver)and also the con sumer use DRO for the Ku-band up converter as the LO of the TX are evaluated on the experimental manner.With these components,the relation of the BER to the Eb, NO of the digital communication system is also evaluated through the pseudo satellite communication link.Then found out that for the system which transmission rate is 1OMbps and above,the DRO is acceptable only if temperature stability is achieved. Finally,a new architecture of the ODU for acquiring the stability performance of the DRO is presented.Also indicated that the new ODU brings cost reduction and higher reliability. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Satellite Communication / earth station / cost redaction / DRO / BER / architectare of the ODU |
| Paper # | SAT93-73,CS93-142 |
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| Conference Information | |
| Committee | SAT |
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| Conference Date | 1993/11/19(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Satellite Telecommunications (SAT) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Economical RF ODU for 10Mbps Digital Signal Transmission |
| Sub Title (in English) | |
| Keyword(1) | Satellite Communication |
| Keyword(2) | earth station |
| Keyword(3) | cost redaction |
| Keyword(4) | DRO |
| Keyword(5) | BER |
| Keyword(6) | architectare of the ODU |
| 1st Author's Name | Koji Yamamoto |
| 1st Author's Affiliation | NTT() |
| 2nd Author's Name | Takumi Tashiro |
| 2nd Author's Affiliation | NTT |
| 3rd Author's Name | Yasunori Yamashita |
| 3rd Author's Affiliation | NTT |
| 4th Author's Name | Kohei Ohata |
| 4th Author's Affiliation | NTT |
| 5th Author's Name | Hideki Mizuno |
| 5th Author's Affiliation | NTT |
| Date | 1993/11/19 |
| Paper # | SAT93-73,CS93-142 |
| Volume (vol) | vol.93 |
| Number (no) | 336 |
| Page | pp.pp.- |
| #Pages | 7 |
| Date of Issue | |