混沌载波通信与传统数字通信的比较.pdfVIP

23 1 V o l1 2 3 N o1 1 200 6 2 M odern Electric Pow er F eb1 200 6 : 1007- 2 322( 2006) 01- 0070- 04 : A : T N 9131 6 马会领 汪芙平 王赞基 ( 100084) Performance Compari son of Digital Communications Using Chaos as Carriers and Traditional Digital Communications M a H u iling W ang Fup ing Wang Z anji ( State K ey L ab of P ow er System D epar tm ent o f Electrica l Eng ineering T sing hua U niv ersity Beijing 1000 84 China) : son are that per fo rmance o f digital com munica tio ns using chao s as car rier s is much wo rse tha n A WG N channels; how- e ver at f requency- unselectiv e slo w-f ading channels it is much better than that o f tr aditional digital co mmunicatio ns. D And f ina lly t he per fo r mance of DCSK w ith the optimal r e- ce ive r is eva lua ted ex perimentally. T he r esult show s that the DCSK FM- DC- perf or mance o f digita l communica tio ns using chao tic car riers SK can be impro ved by so me means. Key words: cha otic ca rr ie r communica tio ns; digita l com mu- nications; g aussian additiond no ise channel ; f re quency- un- sele ctive slo w-f a ding channels; optimal r eceiver DCSK 0 : ; ; ; ;