Computationally Efficient Angle Estimation Using Maximum Likelihood In A Digital Beam-Forming Radar

We present a new signal processing method that uses maximum likelihood estimation (MLE) to estimate target angle-of-arrival (AOA) for a digital beam-forming phased array radar. We describe the motivations for abandoning conventional monopulse estimation, and contrast our proposed method to other rec...

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Bibliographic Details
Published in2007 IEEE Radar Conference pp. 337 - 342
Main Authors Yong Liu, Wong, G., Kennedy, W.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.04.2007
Subjects
Array signal processing
digital beam-forming
Maximum likelihood detection
Maximum likelihood estimation
Phase estimation
Phased arrays
Radar antennas
Radar signal processing
Signal processing algorithms
Signal to noise ratio
Spaceborne radar
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Summary:We present a new signal processing method that uses maximum likelihood estimation (MLE) to estimate target angle-of-arrival (AOA) for a digital beam-forming phased array radar. We describe the motivations for abandoning conventional monopulse estimation, and contrast our proposed method to other recently proposed MLE approaches. In particular, we describe a method which eases the computational burden associated with maximum likelihood AOA estimation, making it feasible for use in real-time signal processors for phased array radar systems. We discuss improvements in beam-shape loss and AOA estimate accuracy for search radar applications.
ISBN:9781424402830
1424402832
ISSN:1097-5659
2375-5318
DOI:10.1109/RADAR.2007.374238