Title :
Joint signal parameter estimation of wideband frequency hopped transmissions using 2D antenna arrays
Author :
Liu, Xiangqian ; Li, Zang ; Sidiropoulos, Nicholas D. ; Swami, Ananthram
Author_Institution :
Dept. of Elec. & Comp. Eng., Louisville Univ., KY, USA
Abstract :
The paper proposes a blind method for joint estimation of hop timing, hop frequency, and 2D direction-of-arrival (azimuth and elevation angles) of multiple wideband frequency hopped transmissions. Based on the principle of dynamic programming and trilinear decomposition of data collected from a multiple invariance sensor array, the method does not require knowledge of the actual hop patterns, and it remains operational even with multiple (unknown) hop rates, frequency offsets, and asynchronism. Simulation results illustrating the performance of the method are also presented.
Keywords :
antenna arrays; array signal processing; direction-of-arrival estimation; dynamic programming; frequency estimation; frequency hop communication; matrix decomposition; parameter estimation; 2D antenna arrays; 2D direction-of-arrival estimation; azimuth angle-of-arrival; dynamic programming; elevation angle-of-arrival; hop frequency estimation; hop timing estimation; matrix decomposition; multiple invariance sensor array; signal parameter estimation; trilinear decomposition; wideband frequency hopped transmissions; Antenna arrays; Azimuth; Broadband antennas; Dynamic programming; Frequency estimation; Parameter estimation; Sensor arrays; Timing; Transmitting antennas; Wideband;
Conference_Titel :
Signal Processing Advances in Wireless Communications, 2003. SPAWC 2003. 4th IEEE Workshop on
Print_ISBN :
0-7803-7858-X
DOI :
10.1109/SPAWC.2003.1319036
