论文信息 - An ultraviolet laser communication system using frequency-shift keying modulation scheme

An ultraviolet laser communication system using frequency-shift keying modulation scheme

A communication system based on an ultraviolet (UV) laser at 266 nm is presented to improve the communication distance. The pulse frequency-shift keying (FSK) modulation scheme is studied and improved in order to reduce the bit error rate (BER), and is put into practice on a field programmable gate array (FPGA). The mathematical models of the modulation and demodulation are established. A test platform is set up to measure the energy density and pulse response under different distances and receiver elevation angles. It is shown that the omnibearing communication can be realized, and the bit rate is limited to 12.5 Mbit/s. The BER is estimated to be less than 10−7 at distance of 300 m in line-of-sight (LOS) communication model and to be less than 10−6 at distance of 80 m in non-line-of-sight (NLOS) communication model.

[1] D. E. Sunstein,et al. A scatter communications link at ultraviolet frequencies. , 1968 .

[2] George Kennedy. Electronic Communication Systems , 1970 .

[3] Jeffrey H. Shapiro,et al. Non-line-of-sight single-scatter propagation model , 1991 .

[4] Gary A. Shaw,et al. NLOS UV communication for distributed sensor systems , 2000, SPIE Optics + Photonics.

[5] Mohammad Noshad,et al. NLOS UV communication systems using spectral amplitude coding , 2011, 2011 IEEE GLOBECOM Workshops (GC Wkshps).

[6] Min Zhang,et al. Theoretical and experimental research on diversity reception technology in NLOS UV communication system. , 2012, Optics express.

[7] Shoufeng Tong,et al. A simplified NLOS UV communication model , 2012, 2012 International Conference on Optoelectronics and Microelectronics.

[8] Qing Li,et al. Performance analysis of short-range NLOS UV communication system using Monte Carlo simulation based on measured channel parameters. , 2012, Optics express.