국가지식-학술정보
Time-Varying Subspace Tracking Algorithm for Nonstationary DOA Estimation in Passive Sensor Array
Time-Varying Subspace Tracking Algorithm for Nonstationary DOA Estimation in Passive Sensor Array
- 한국음향학회
- The Journal of the Acoustical Society of Korea
- Vol.20 No.1E
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2001.017 - 13 (7 pages)
- 0
커버이미지 없음
In this paper we propose a new subspace tracking algorithm based on the PASTd (Projection Approximation Subspace Tracking with deflation). The algorithm is obtained via introducing the variable forgetting factor which adapts itself to the time-varying subspace environments. The tracking capability of the proposed algorithm is demonstrated by computer simulations in an abruptly changing DOA scenario. The estimation results of the variable forgetting factor PASTd(VFF-PASTd) outperform those of the PASTd in the nonstationary case as well as in the stationary case.
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