Virtual Array Receiver Options for 64-ary Pulse Position Modulation (PPM)
NASA is developing technology for 64 64-ary PPM using relatively large PPM time slots (10 ns) an and relatively simple d electronic electronic-based receiver logic. In this paper we describe photonic photonics-based receiver options for the case of much higher data rates and inherently shorter decision times. The receivers take the form of virtual ( array or quadrant) arrays with associated comparison tests. Previously we explored this concept for 4-ary and 16-ary PPM at data rates of up to 10 Gb/s. The lessons learned are applied to the case of 64 64-ary PPM at 1.25 Gb/s s. Various receiver designs are compare, and t the optimum design, based on virtual array he arrays, is s, evaluated using numerical simulations.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 947249
- Report Number(s):
- LLNL-CONF-409943; TRN: US200909%%136
- Resource Relation:
- Journal Volume: 7199; Conference: Presented at: SPIE Photonics West, San Jose, CA, United States, Jan 24 - Jan 29, 2009
- Country of Publication:
- United States
- Language:
- English
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