M-ARY POISSON DETECTION AND OPTICAL COMMUNICATIONS.
Abstract
The paper presents an investigation of the problem of maximum likelihood detection of one of M poisson processes in a background of additive poisson noise. When the observables correspond to counts of emitted photoelectrons, the problem models a discrete version of a coherent M-ary optical communication system using photon counters in the presence of background radiation. Consideration is given to an average distance and a detection probability criterion. The advantages of an M-ary pulsed intensity set (poisson intensities wholly concentrated in a single counting interval) are demonstrated. The performance of such intensity sets is exhibited in terms of error probabilities, pulse widths, signal-to-noise ratio, and channel capacity. Behavior as a function of number of intensities M is also discussed. By appropriate conversion these latter results may be used for determining power requirements in an optical pulse position modulation system. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1968
- Accession Number
- AD0835642
Entities
People
- R. M. Gagliardi
- S. Karp
Organizations
- University of Southern California