[3] [3] P. F. Szajowski, G. Nykolak, J. J. Auborn et al.. Key elements of high-speed WDM terrestrial free-space optical communications systems[C]. SPIE, 2000, 3932:2～14

[4] [4] E. Korevaar, J. Schuster, P. Adhikari et al.. Description of STRV-2 lasercom experimental operations[C]. SPIE, 1997, 2990:60～69

[5] [5] S. M. Haas, J. H. Shapiro. Capacity of wireless optical communication[J]. IEEE J. Sel. Area Commun., 2003, 21(8):1346～1357

[6] [6] Motti Gabay, Shlomi Arnon. Quantum key distribution by a free-space MIMO system[J]. J. Lightwave Technol., 2006, 24(8):3114～3120

[7] [7] P. W. Wolniansky, G. J. Foschini, G. D. Golden et al.. V-BLAST: An architecture for realizing very high data rates over the rich-scattering wireless channel[C]. URSI International symposium on signals, systems and electronics. ISSSE 98.PISA,ITALY: ISSSE, 1998. 295～300

[11] [11] I. I. Kim, H. Hakakha, P. Adhikari. Scintillation reduction using multiple transmitters[C]. SPIE, 1997, 2990:102～113

[12] [12] S. G. Wilson, M. Brandt-Pearce, Q. Cao et al.. Free-space optical MIMO transmission with Q-ary PPM[J]. IEEE Trans. Commun., 2005, 53(8):1402～1412

[13] [13] Mohinder Jankiraman. Space-Time Codes and MIMO Systems[M]. Artech House, 2004. 137～140