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Decoupled Estimation of DOA and Angular Spread for Spatially Distributed Sources

This study presents a decoupled estimation method for Direction of Arrival (DOA) and angular spread of signals from spatially distributed sources. Utilizing the COMET estimation framework and the Extended Invariance Principle (EXIP), we develop a robust estimation model based on Hadamard matrix products and transforms. The results indicate enhanced accuracy in estimating angular spread and DOA through covariance matching estimators. Key contributors include Huang W.J. and Tsai H.C., with references to foundational works in IEEE signal processing.

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Decoupled Estimation of DOA and Angular Spread for Spatially Distributed Sources

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  1. Decoupled Estimation of DOA and Angular Spread for a Spatially Distribution Source 指導教授：黃文傑 W.J. Huang 學生：　　蔡漢成 H.C. Tsai

  2. Outline • COMET Estimation • EXIP • Decouple Estimation

  3. Data Model

  4. c.f. Hadamard matrix product & Hadamard Transform

  5. COMET Estimation COvariance Matching EsTimators

  6. EXIP EXtended Invariance Principle Unstructured model (11)

  7. (13)

  8. is Toeplitz Matrix

  9. Decouple Estimation

  10. if

  11. Estimation of w0

  12. Angular Spread Estimation

  13. Conclusion

  14. Reference Decoupled Estimation of DOA and Angular Spread for a Spatially Distribution Source Olivier Besson ,Member,IEEE,and Petre Stoica,Fellow,IEEE IEEETRANSACTIONSONSIGNALPROCESSING,VOL.48,NO.7,JULY2000

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