| タイトル | DOT Transmit Module |
| 本文（外部サイト） | http://hdl.handle.net/2060/20130012669 |
| 著者（英） | Nguyen, Huy; Gin, Jonathan W.; Nguyen, Danh H.; Sahasrabudhe, Adit; Quirk, Kevin J.; Patawaran, Ferze D. |
| 著者所属（英） | Jet Propulsion Lab., California Inst. of Tech. |
| 発行日 | 2013-04-01 |
| 言語 | eng |
| 内容記述 | The Deep Space Optical Terminal (DOT) transmit module demonstrates the DOT downlink signaling in a flight electronics assembly that can be qualified for deep space. The assembly has the capability to generate an electronic pulse-position modulation (PPM) waveform suitable for driving a laser assembly to produce the optical downlink signal. The downlink data enters the assembly through a serializer/ deserializer (SERDES) interface, and is encoded using a serially concatenated PPM (SCPPM) forward error correction code. The encoded data is modulated using PPM with an inter-symbol guard time to aid in receiver synchronization. Monitor and control of the assembly is via a low-voltage differential signal (LVDS) interface |
| NASA分類 | Man/System Technology and Life Support |
| レポートNO | NPO-47723 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
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