Virtual array receiver options for 64-ary pulse position modulation (PPM)

Antonio J. Mendez; Vincent J. Hernandez; Robert M. Gagliardi; Corey V. Bennett

doi:10.1117/12.809623

24 February 2009 Virtual array receiver options for 64-ary pulse position modulation (PPM)

Antonio J. Mendez, Vincent J. Hernandez, Robert M. Gagliardi, Corey V. Bennett

Proceedings Volume 7199, Free-Space Laser Communication Technologies XXI; 71990S (2009) https://doi.org/10.1117/12.809623
Event: SPIE LASE: Lasers and Applications in Science and Engineering, 2009, San Jose, California, United States

Abstract

NASA is developing technology for 64-ary PPM using relatively large PPM time slots (10 ns) and relatively simple electronic-based receiver logic. In this paper we describe 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-ary PPM at 1.25 Gb/s. Various receiver designs are compared, and the optimum design, based on virtual arrays, is evaluated using numerical simulations.

Citation Download Citation

Antonio J. Mendez, Vincent J. Hernandez, Robert M. Gagliardi, and Corey V. Bennett "Virtual array receiver options for 64-ary pulse position modulation (PPM)", Proc. SPIE 7199, Free-Space Laser Communication Technologies XXI, 71990S (24 February 2009); https://doi.org/10.1117/12.809623

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