Title :
Maximum likelihood speed and distance estimation for OFDM radar
Author :
Braun, Martin ; Sturm, Christian ; Jondral, Friedrich K.
Author_Institution :
Commun. Eng. Lab., Karlsruhe Inst. of Technol. (KIT), Karlsruhe, Germany
Abstract :
A distance and speed estimation algorithm for OFDM based radar is analysed statistically. The maximum likelihood estimator is derived and compared to previous results. A connection to spectral analysis is drawn, simplifying the analysis of the estimator in question. Finally, a method to evaluate the performance of the algorithm is presented and conclusions for the structure of the OFDM signals are drawn. It is shown that the estimation algorithm works well above an SNR threshold, but rapidly degrades below.
Keywords :
OFDM modulation; maximum likelihood estimation; radar applications; OFDM radar; SNR threshold; maximum likelihood distance estimation; maximum likelihood speed estimation; spectral analysis; Computer architecture; Hardware; Horn antennas; Maximum likelihood estimation; Narrowband; OFDM; Radar antennas; Radio frequency; Receiving antennas; Transmitting antennas;
Conference_Titel :
Radar Conference, 2010 IEEE
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4244-5811-0
DOI :
10.1109/RADAR.2010.5494616
