NDLI: Mixed-order and higher-order ambiguity functions

Content Provider	IEEE Xplore Digital Library
Author	Hacker, P. Bin Yang
Copyright Year	2011
Description	Author affiliation: System Theory and Signal Processing, Universität Stuttgart, Pfaffenwaldring 47, 70550, Germany (Hacker, P.; Bin Yang)
Abstract	Current automotive radar systems measure the distance, the relative velocity and the direction of objects in their environment. This information enables the car to support the driver. In general, objects cannot be completely separated by their distance or relative velocity, thus order and direction estimations are needed to estimate the number of objects and their direction of arrival. In this paper we start with the antenna array ambiguity function of single objects known from literature and generalize it to multiple objects. Therewith we develop criterions to evaluate the order estimation capabilities of an antenna array and its unique direction estimation of multiple objects. It is shown that some arrays are much more suitable than others for estimating the number of objects. Arrays which can be used to estimate the direction of a single object ambiguityfree are not always able to estimate the direction of two objects uniquely. The proposed criterions can be used to optimize automotive radar antenna arrays to be non-ambiguous up to multiple objects to handle complicated traffic situations correctly.
Starting Page	752
Ending Page	757
File Size	1044863
Page Count	6
File Format	PDF
ISBN	9781457708909
ISSN	19310587
e-ISBN	9781457708916
DOI	10.1109/IVS.2011.5940578
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-05
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Arrays Estimation Signal to noise ratio Radar Antenna arrays Optimization Radar antennas
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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