A CFAR Circuit with Multiple Detection Cells for Automotive UWB Radars

URI http://harp.lib.hiroshima-u.ac.jp/hiroshima-cu/metadata/8564
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Title
A CFAR Circuit with Multiple Detection Cells for Automotive UWB Radars
Author
氏名 TAKAHASHI Satoshi
ヨミ タカハシ サトシ
別名 高橋 賢
Subject
automotive radar
radar clutter
CFAR
automatic target detection
spatial correlation
Abstract

Future high-resolution short-range automotive radar will have a higher false alarm probability than the conventional low-resolution radar has. In a high-resolution radar, the reception signal becomes sensitive to the difference between intended and unintended objects. However, automotive radars must distinguish targets from background objects that are the same order of size; it leads to an increase in the false alarm probability. In this paper, a CFAR circuit for obtaining the target mean power, as well as the background mean power, is proposed to reduce the false alarm probability for high-resolution radars working in automotive environments. The proposed method is analytically evaluated with use of the characteristic function method. Spatial correlation is also considered in the evaluation, because the sizes of the both target and background objects approach the dimension of several range cells. Result showed the proposed CFAR with use of two alongside range cells could reduce the ratio of 6.4 dB for an example of an automotive situation.

Description Peer Reviewed
Journal Title
IEICE TRANSACTIONS on Communications
Volume
E93-B
Issue
6
Spage
1574
Epage
1582
Published Date
2010-06-01
Publisher
(社)電子情報通信学会(IEICE)
ISSN
0916-8516
NCID
AA10826261
NAID
130000261737
Language
eng
NIIType
Journal Article
Text Version
出版社版
Rights
copyright©2010 IEICE
Relation URL
Old URI
Set
hiroshima-cu