Journal ArticleDOI
Laser satellite communication network-vibration effect and possible solutions
Shlomi Arnon,Norman S. Kopeika +1 more
- Vol. 85, Iss: 10, pp 1646-1661
TLDR
This paper reviews the present status of satellite networks, the developing efforts of optical satellite communication around the world, performance results of vibration effects on different kinds of optical communication satellite Networks, and seven approaches to overcome the problems caused by transmitter pointing vibration.Abstract:
A number of serious consortiums develop satellite communication networks. The objective of these communication projects is to service personal communication users almost everywhere on Earth. The intersatellite links in those projects use microwave radiation as the carrier. Free-space optical communication between satellites networked together can make possible high-speed communication between different places on Earth. Some advantages of an optical communication system over a microwave communication system in free space are: (1) smaller size and weight, (2) less transmitter power, (3) larger bandwidth, and (4) higher immunity to interference. The pointing from one satellite to another is a complicated problem due to the large distance between the satellite, the narrow beam divergence angle, and vibration of the pointing system. Such vibration of the transmitted beam in the receiver plane decreases the average received signal, which increases the bit error rate. We review: (1) the present status of satellite networks, (2) developing efforts of optical satellite communication around the world, (3) performance results of vibration effects on different kinds of optical communication satellite networks, and (4) seven approaches to overcome the problems caused by transmitter pointing vibration.read more
Citations
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Journal ArticleDOI
Outage Capacity Optimization for Free-Space Optical Links With Pointing Errors
A.A. Farid,Steve Hranilovic +1 more
TL;DR: A statistical model for the optical intensity fluctuation at the receiver due to the combined effects of atmospheric turbulence and pointing errors is derived and the effect of beam width, detector size, and jitter variance explicitly is considered.
Journal ArticleDOI
Optical Communication in Space: Challenges and Mitigation Techniques
Hemani Kaushal,Georges Kaddoum +1 more
TL;DR: This survey provides the reader with comprehensive details on the use of space-based optical backhaul links in order to provide high capacity and low cost backhaul solutions.
Journal ArticleDOI
Optical Communication in Space: Challenges and Mitigation Techniques
Hemani Kaushal,Georges Kaddoum +1 more
TL;DR: In this article, the authors present a comprehensive survey on various challenges faced by free space optical communication (FSO) communication system for ground-to-satellite (G2S) or satellite-toground (S2G) and inter-Satellite (I2I) links.
Journal ArticleDOI
Performance of an optical wireless communication system as a function of wavelength.
Haim Manor,Shlomi Arnon +1 more
TL;DR: This study analyzes the performance of a short-distance terrestrial OWC system as a function of wavelength and performs a simulation of the system under different weather conditions, finding a modest improvement in link availability.
Journal ArticleDOI
Impact of pointing errors on the performance of generalized atmospheric optical channels
Antonio Jurado-Navas,José María Garrido-Balsells,Jose F. Paris,Miguel Castillo-Vázquez,Antonio Puerta-Notario +4 more
TL;DR: A new and generalized statistical model to model the irradiance fluctuations of an unbounded optical wavefront propagating through a turbulent medium under all irradiance fluctuation conditions in homogeneous, isotropic turbulence is completed by including the adverse effect of pointing error losses due to misalignment.
References
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Journal ArticleDOI
Impact of random pointing and tracking errors on the design of coherent and incoherent optical intersatellite communication links
TL;DR: The impact of pointing and tracking errors on the design of direct-detection pulse-position modulation and heterodyne noncoherent frequency-shift keying systems is analyzed and it is shown that in the limit of large spatial tracking errors, the advantage in receiver sensitivity for theheterodyne system is quickly offset by the smaller antenna gain and the higher power penalty due to tracking errors.
Journal ArticleDOI
Capacity, Cutoff Rate, and Coding for a Direct-Detection Optical Channel
TL;DR: In this article, it was shown that when Pierce's pulse-position modulation scheme with 2L positions is used on a self-noise-limited direct-detection optical communication channel, there results a 2L-ary erasure channel that is equivalent to the parallel combination of L "completely correlated" binary erasure channels.
Proceedings ArticleDOI
In-orbit measurements of microaccelerations of ESA's communication satellite Olympus
TL;DR: In this paper, a set of three orthogonally arranged microaccelerometers is installed on a large communication satellite OLYMPUS to characterize and observe the behavior of different mechanisms in space and to get measurements of the vibration levels which are of relevance for the design of optical communication payloads.
Journal ArticleDOI
Beam width and transmitter power adaptive to tracking system performance for free-space optical communication
TL;DR: A mathematical model of a communication system that adapts optimally the transmitter beam width and the transmitted power to the tracking system performance is derived and it can be seen that a four-element adaptive transmitter telescope is sufficient to compensate for vibration amplitude doubling.
Journal Article
Beam pointing error as a significant design parameter for satellite-borne, free-space optical communications systems
J. D. Barry,G. S. Mecherle +1 more
TL;DR: It is shown that the system beamwidth and antenna diameter are limited by the probability of burst error, and typical terminal designs have less temporal communication system availability than one specifically designed to account for the influence of burst errors.
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