Title :
Free space laser communications based on Orthogonal On-Off Keying(O3K)
Author_Institution :
Dept. of Electr. Eng., Univ. of North Dakota, Grand Forks, ND, USA
Abstract :
Orthogonal On-Off Keying is proposed for free space laser communication. In the proposed technique, the input digital signal is mapped into a block of orthogonal code. The encoded data, which is in orthogonal space, modulates the laser beam by means of On-Off Keying. At the receive side, the data is recovered by means of code correlation. This modulation technique offers synchronization and error control coding without any additional circuits.
Keywords :
amplitude shift keying; correlation methods; error correction codes; orthogonal codes; space communication links; synchronisation; code correlation; digital signal; error control coding; free space laser communications; orthogonal code; orthogonal on-off keying; synchronization; Correlation; Encoding; Equations; Error correction; Laser beams; Modulation; Synchronization; Coding; Communication; Modulation;
Conference_Titel :
Electro/Information Technology (EIT), 2011 IEEE International Conference on
Conference_Location :
Mankato, MN
Print_ISBN :
978-1-61284-465-7
DOI :
10.1109/EIT.2011.5978628
