TY - GEN
T1 - Performance analysis of a spread spectrum acquisition algorithm for satellite mobile radio
AU - Flikkema, P. G.
AU - Davisson, L. D.
N1 - Publisher Copyright:
© 1992 IEEE.
PY - 1992
Y1 - 1992
N2 - The authors consider the parallel acquisition of direct-sequence spread-spectrum signals with very low signal-to-noise ratio (SNR) and with frequency and pseudonoise chip clock epoch uncertainty due to Doppler. This problem arises in the context of low-earth-orbiting satellite-based mobile radio networks where the Doppler effect induces both large initial uncertainty and considerable dynamics during the acquisition. Because the Doppler affects both the carrier frequency and the chip clock epoch, the authors search over a 2-D uncertainty region, quantized in both dimensions so that the estimated process evolves in time over a lattice. Their approach exploits the fact that the Doppler dynamics of the signal can be modeled as a Markov process. Results leading to the probability of acquisition as a function of the acquisition time are obtained.
AB - The authors consider the parallel acquisition of direct-sequence spread-spectrum signals with very low signal-to-noise ratio (SNR) and with frequency and pseudonoise chip clock epoch uncertainty due to Doppler. This problem arises in the context of low-earth-orbiting satellite-based mobile radio networks where the Doppler effect induces both large initial uncertainty and considerable dynamics during the acquisition. Because the Doppler affects both the carrier frequency and the chip clock epoch, the authors search over a 2-D uncertainty region, quantized in both dimensions so that the estimated process evolves in time over a lattice. Their approach exploits the fact that the Doppler dynamics of the signal can be modeled as a Markov process. Results leading to the probability of acquisition as a function of the acquisition time are obtained.
UR - http://www.scopus.com/inward/record.url?scp=85067184209&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85067184209&partnerID=8YFLogxK
U2 - 10.1109/MILCOM.1992.244081
DO - 10.1109/MILCOM.1992.244081
M3 - Conference contribution
AN - SCOPUS:85067184209
T3 - Proceedings - IEEE Military Communications Conference MILCOM
SP - 115
EP - 119
BT - Military Communications Conference, MILCOM 1992
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 1992 Military Communications Conference, MILCOM 1992
Y2 - 11 October 1992 through 14 October 1992
ER -