| Liu Nan (刘楠),Song Wenlong,Dong Guanghui.[J].高技术通讯(英文),2015,21(4):465~470 |
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| Two-stage DOA estimation method for passive radar based on sparse representation |
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| DOI：10.3772/j.issn.1006-6748.2015.04.013 |
| 中文关键词: |
| 英文关键词: passive radar, GPS illuminator, direction of arriving (DOA), extensive cancellation algorithm, sparse representation |
| 基金项目: |
| Author Name | Affiliation | | Liu Nan (刘楠) | | | Song Wenlong | | | Dong Guanghui | |
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| 中文摘要: |
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| 英文摘要: |
| In a GPS illuminator based passive radar system, estimation of direction of arriving （DOA） of multiple targets is a difficult problem due to strong interference. A two-stage method combining extensive cancellation algorithm (ECA) and sparse representation is proposed. In the first stage, ECA algorithm is used to eliminate the direct-path and multi-path interference. In the second stage, sparse representation of improved weight constraints based on L1 norm is adopted to estimate DOA and suppress the interference. Simulation results show that the proposed method can effectively estimate DOA in low computation complexity without estimating the disturbance parameter. |
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