Title :
An efficient algorithm for TDOA/FDOA estimation based on approximate coherent accumulative of short-time CAF
Author :
Zhang, Wei ; Zhang, Gengxin
Author_Institution :
Inst. of Commun. Eng., PLA Univ. of Sci. & Technol., Nanjing, China
Abstract :
Considering the huge calculation in estimation of TDOA/FDOA using conventional CAF algorithmic, a fast algorithm based on coherent accumulative of a approximate calculation of short-time CAF is proposed. Feasibility and performance of the fast algorithm is analyzed. Simulation analysis of conventional and fast CAF algorithmic under the same condition is performed. The simulation results show the effectiveness of the new algorithmic, and it can cut down time consumption around 90%.
Keywords :
time-of-arrival estimation; FDOA estimation; TDOA estimation; cross ambiguity function; frequency difference-of-arrival estimation; short-time CAF coherent accumulative algorithm; time difference-of-arrival estimation; Algorithm design and analysis; Approximation algorithms; Approximation methods; Estimation; Receivers; Satellites; Time frequency analysis; cross ambiguity function; frequency difference of arrival; time difference of arrival;
Conference_Titel :
Wireless Communications and Signal Processing (WCSP), 2011 International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4577-1009-4
Electronic_ISBN :
978-1-4577-1008-7
DOI :
10.1109/WCSP.2011.6096807
