Title :
A new non-coherent delay-lock loop
Author :
Zhang, Chengchang ; Yang, Lisheng ; Yan, Dangui
Author_Institution :
Chongqing Univ., Chongqing
fDate :
Nov. 28 2007-Dec. 1 2007
Abstract :
The Tracking, Telemetry and Command (TT&C) systems for space vehicle had gone through two main stages, which were separate systems and carrier unified systems, now its developing trend is advanced Spread Spectrum Unified TT&C(SS-UTTC) systems. The delay-locked is a key technique of Tracking, Telemetry and Command (TT&C) systems. This paper gives a new non-coherent delay-lock loop scheme based on coherent characteristic and analyses its acquisition and tracking performances for Doppler Shift and test the performance in experiment.
Keywords :
Doppler shift; delay lock loops; space vehicles; spread spectrum communication; telemetry; Doppler Shift; noncoherent delay-lock loop; space vehicle; spread spectrum unified TT&C systems; tracking, telemetry and command systems; Band pass filters; Circuits; Delay; Doppler shift; Educational institutions; Power system protection; Signal processing; Space vehicles; Spread spectrum communication; Telemetry; Doppler Shift; Non-coherent delay-lock loop; Spread Spectrum Unified TT&C System;
Conference_Titel :
Intelligent Signal Processing and Communication Systems, 2007. ISPACS 2007. International Symposium on
Conference_Location :
Xiamen
Print_ISBN :
978-1-4244-1447-5
Electronic_ISBN :
978-1-4244-1447-5
DOI :
10.1109/ISPACS.2007.4445821
