Diversity reception and equalization techniques for laser communication in space

• 作 者: 梁波 陈卫标
• 机 构: Shanghai Institute of Optics and Fine Mechanics Chinese Academy of Sciences,Shanghai Institute of Op
• 出 处: Chinese Optics Letters
• 发表日期: 2007年04期
• 关键词: equalization Rake receiver symbol fading analysed keying transmit instant format

The principle of band-limited space optical communication system using the techniques of space diversity methods and time domain Rake receiver is analyzed.The joint channel equalizer method combining diversity reception and equalization technique is presented in space laser communication.By computer simulation,the bit error rates of noncoherent space optical on-off keying signal using different space diversity methods,Rake reception with different inter-symbol interferences,joint diversity equalizations with different signal noise rates and different channel numbers are analysed.The results identify that joint diversity equalization method can enhance space optical communication performance evidently.

The principle of band-limited space optical communication system using the techniques of space diversity methods and time domain Rake receiver analysis was analyzed. The joint channel equalizer method combining diversity reception and equalization technique is presented in space laser communication. By computer simulation, the bit error Rates of noncoherent space optical on-off keying signals using different space diversity methods, Rake reception with different inter-symbol interferences, joint diversity equalizations with different signal noise rates and different channel numbers are analyzed. The results identify that joint diversity equalization method can enhance space optical communication performance evidently.