DocumentCode :
85398
Title :
Cramer-Rao lower bound for frequency estimation for coherent pulse train with unknown pulse
Author :
Pourhomayoun, Mohammad ; Fowler, Mark L.
Author_Institution :
Dept. of Electr. & Comput. Eng., Binghamton Univ., Binghamton, NY, USA
Volume :
50
Issue :
2
fYear :
2014
fDate :
Apr-14
Firstpage :
1304
Lastpage :
1312
Abstract :
Previous results for the Cramer-Rao lower bound (CRLB) of the frequency of a coherent pulse train make severely simplifying assumptions not always valid in real-world applications. Here, the CRLB is derived for the case that the pulse is arbitrary but unknown. This paper poses and answers the important question: Does a priori knowledge of the pulse shape confer a fundamental advantage (i.e., lower CRLB) as compared to the case of known pulse shape? The surprising answer is that such prior knowledge provides very little advantage in any expected real-world scenarios.
Keywords :
Doppler radar; frequency estimation; pulse shaping; radar signal processing; CRLB; Cramer-Rao lower bound; coherent pulse train; frequency estimation; priori knowledge; pulse shape; unknown pulse; Energy measurement; Frequency estimation; Frequency modulation; Pulse measurements; Shape; Signal to noise ratio; Vectors;
fLanguage :
English
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9251
Type :
jour
DOI :
10.1109/TAES.2014.130024
Filename :
6850156
Link To Document :
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