Title :
Code tracking performance of DS/FH spread spectrum signal for TT&C
Author :
Meng, Shengyun ; Yang, Wenge ; Lu, Weitao ; Liu, Jia ; Yu, Jinfeng
Author_Institution :
TT&C Res. Center, Acad. of Equip. Command & Technol., Beijing, China
Abstract :
The theoretical expression is presented in this study to predict the early minus late power (EMLP) code tracking performance with residual frequency shift and finite front-end bandwidth. On basis of the expression and numerical simulation, the impact on the code tacking performance of Doppler hopping caused by radio frequency hopping of DS/FH signal for TT&C as well as tracking system parameters is analyzed. Simulation results point out that measures like removing Doppler hopping and the carrier aided technique with narrow discriminator spacing as well as narrow loop bandwidth could guarantee DS/FH signal in TT&C system with required code tracking precision. Both theoretical and simulation results provide valuable references for the code tracking system design of DS/FH signal for TT&C.
Keywords :
codes; radio tracking; radiotelemetry; spread spectrum communication; DS-FH spread spectrum signal; Doppler hopping; EMLP code tracking; TT&C system; carrier aided technique; early minus late code power code tracking; narrow loop bandwidth; radio frequency hopping; tracking-telemetry-and-control system; Bandwidth; Doppler shift; Frequency estimation; Frequency synchronization; Performance analysis; RF signals; Radio frequency; Signal analysis; Spread spectrum communication; Tracking loops; Code tracking performance; DS/FH; Doppler hopping; TT&C;
Conference_Titel :
Information Management and Engineering (ICIME), 2010 The 2nd IEEE International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-5263-7
Electronic_ISBN :
978-1-4244-5265-1
DOI :
10.1109/ICIME.2010.5477657
