• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国政府科技报告 >Real-Time DOA Estimation of Wideband Signals with Multidimensional Arrays viaSignal Subspace Techniques
【24h】

Real-Time DOA Estimation of Wideband Signals with Multidimensional Arrays viaSignal Subspace Techniques

机译：基于信号子空间技术的多维阵列实时DOa估计宽带信号

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

2D Unitary ESPRIT is developed as a closed-form 2-D angle estimation algorithmfor use in conjunction with a uniform rectangular array (URA). In the final stage of the algorithm, the real and imaginary parts of the i-th eigenvalue of a matrix are one-to-one related to the respective direction cosines of the i-th source relative to the two major array axes. Reduced dimension beamspace implementations of 2D Unitary ESPRIT are developed along with adaptations for other array configurations including two orthogonal linear arrays. A novel approach to angle estimation in beamspace is also developed based on the observation that beamspace noise eigenvectors may be transformed to vectors in the element-space noise subspace. The transformed noise eigenvectors are bandpass, facilitating multirate processing involving modulation to baseband, filtering, and decimation. As these operations are linear, the Root-MUSIC (ESPRIT) based algorithm merely premultiples each beamspace noise (signal) eigenvector by a precomputed transformation matrix. Compared to previous beamspace implementations of Root-MUSIC or ESPRIT, this approach places no restrictions on the structure of the matrix beamformer. Extensions for the URA are developed based on Multidimensional multirate processing. (AN).

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号