Title :
Joint hop timing and DOA estimation for multiple noncoherent frequency hopped signals
Author :
Liu, Xiangqian ; Sidiropoulos, Nicholas D. ; Swami, Ananthram
Author_Institution :
Dept. of Electr. & Comput. Eng., Minnesota Univ., USA
Abstract :
A dynamic programming (DP) method coupled with two dimensional (2D) harmonic retrieval is proposed for joint estimation of hop timing and direction-of-arrival (DOA) of multiple frequency hopped spread spectrum (FHSS) signals using an antenna array, without knowledge of hopping patterns and hop rates of the users.
Keywords :
array signal processing; direction-of-arrival estimation; dynamic programming; frequency estimation; frequency hop communication; maximum likelihood estimation; multi-access systems; spread spectrum communication; timing; 2D harmonic retrieval; DOA estimation; FHSS signals; ML estimation; antenna array; direction-of-arrival estimation; dynamic programming; hop frequency estimation; hop timing estimation; multiple access wireless communications; multiple frequency hopped spread spectrum signals; Antenna arrays; Direction of arrival estimation; Directive antennas; Dynamic programming; Frequency estimation; Power harmonic filters; Spectrogram; Spread spectrum communication; Timing; Two dimensional displays;
Conference_Titel :
Sensor Array and Multichannel Signal Processing Workshop Proceedings, 2002
Print_ISBN :
0-7803-7551-3
DOI :
10.1109/SAM.2002.1191021
