Title :
Direct geolocation of stationary wideband radio signal based on time delays and Doppler shifts
Author :
Weiss, Anthony J. ; Amar, Alon
Author_Institution :
Sch. of Electr. Eng., Tel Aviv Univ., Tel Aviv, Israel
Abstract :
Contrary to the suboptimal (two-step) geolocation procedures, we propose a maximum likelihood estimation for the position of a stationary transmitter which its delayed and Doppler shifted signal is observed by moving receivers. The position is estimated based on the same data used in common methods. However, it is performed in a single step by maximizing a cost function that depends on the unknown position only.
Keywords :
Doppler shift; delay circuits; maximum likelihood estimation; time-of-arrival estimation; Doppler shifts; ambiguity function; differential Doppler; direct geolocation; maximum likelihood estimation; stationary transmitter; stationary wideband radio signal; time delays; Computer science; Delay effects; Delay estimation; Doppler shift; Frequency estimation; Mathematics; Maximum likelihood estimation; Radio transmitters; Receivers; Wideband; Ambiguity function; Differential Doppler; Emitter location; Maximum likelihood estimation;
Conference_Titel :
Statistical Signal Processing, 2009. SSP '09. IEEE/SP 15th Workshop on
Conference_Location :
Cardiff
Print_ISBN :
978-1-4244-2709-3
Electronic_ISBN :
978-1-4244-2711-6
DOI :
10.1109/SSP.2009.5278630
