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| 2-D AOAs Estimation of Wideband Chirp Signalsin Direction-dependent Sensor Complex Gain Condition |
| Yin Ji-hao Wang Ling Chen Tian-qi |
| School of E.E. UESTC, Chengdu 610054, China |
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Abstract A novel method is proposed to estimate 2-dimensional (2-D) angles of arrival (AOAs) of wideband chirp signals in direction-dependent sensor complex gain condition. In this method, via the algebraic structure of wideband chirp signal’s time-varying manifold, a manifold time-frequency transform is presented to obtain closed-form 2-D angles estimation and sensor errors elimination. The efficacy of the proposed method is verified by simulation results.
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Received: 19 March 2007
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Corresponding Authors:
Yin Ji-hao
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2008, Vol. 30 
