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13 February 2008 Bit error distribution measurements in the atmospheric optical fading channel
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Abstract
On/Off-Keying (OOK) data transmission in the atmospheric optical channel suffers from slow fading of the received power. Fading is produced by index of refraction turbulence and transmitter and receiver terminal alignment errors produced by tracking errors. Standard bit-error-ratio measurement techniques count the number of errors during a fixed time. Variation of measurement duration can change the measurement result significantly. Further measurement times are normally longer than fading events. Therefore no information about the distribution of bits in error in a data-stream can be measured with standard bit-error-rate testers. However the error distribution is important for the design of error correction methods like forward error correction. Therefore a special device has been developed to measure the error distribution. A description of this device is given in this paper. Further first measurements results are presented.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Michal Kubicek, Hennes Henniger, and Zdenek Kolka "Bit error distribution measurements in the atmospheric optical fading channel", Proc. SPIE 6877, Free-Space Laser Communication Technologies XX, 68770B (13 February 2008); doi: 10.1117/12.762684; https://doi.org/10.1117/12.762684
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