TY - GEN
T1 - Adaptive noise bandwidth based carrier tracking loop method in navigation receivers
AU - Bi, Yanbo
AU - Yao, Rugui
AU - Wang, Ling
PY - 2013
Y1 - 2013
N2 - A novel method based on adaptive noise bandwidth in carrier tracking loop of navigation receivers is given to improve carrier tracking performance on loop converging speed and accuracy. The relationship between noise bandwidth changes and frequency offset of the loop is analyzed, as well as variations of coherent accumulation value in the in-phase prompt code branch (called IF) at different track stages. On this basis, the normalized mean squared deviation (NMSD) of coherent accumulation value is defined and it can be used as the dependent variable for the change of the noise bandwidth. Real satellite signal simulation shows that the proposed scheme well balances dynamic stress and loop noise so that the carrier loop can continuously keep lock on the incoming signal.
AB - A novel method based on adaptive noise bandwidth in carrier tracking loop of navigation receivers is given to improve carrier tracking performance on loop converging speed and accuracy. The relationship between noise bandwidth changes and frequency offset of the loop is analyzed, as well as variations of coherent accumulation value in the in-phase prompt code branch (called IF) at different track stages. On this basis, the normalized mean squared deviation (NMSD) of coherent accumulation value is defined and it can be used as the dependent variable for the change of the noise bandwidth. Real satellite signal simulation shows that the proposed scheme well balances dynamic stress and loop noise so that the carrier loop can continuously keep lock on the incoming signal.
KW - adaptive noise bandwidth
KW - carrier tracking loop
KW - coherent accumulate
KW - normalized mean squared deviation
UR - http://www.scopus.com/inward/record.url?scp=84893261598&partnerID=8YFLogxK
U2 - 10.1109/WOCC.2013.6676368
DO - 10.1109/WOCC.2013.6676368
M3 - 会议稿件
AN - SCOPUS:84893261598
SN - 9781467356992
T3 - Proceedings - 2013 Wireless and Optical Communications Conference, WOCC 2013
SP - 199
EP - 202
BT - Proceedings - 2013 Wireless and Optical Communications Conference, WOCC 2013
T2 - 22nd Wireless and Optical Communications Conference, WOCC 2013
Y2 - 16 May 2013 through 18 May 2013
ER -