IEEE transactions on information theory, 2020-12, Vol.66 (12), p.7828-7834
2020
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- Autor(en) / Beteiligte
- Titel
- Persymmetric Adaptive Array Detection of Spread Spectrum Signals
- Ist Teil von
- IEEE transactions on information theory, 2020-12, Vol.66 (12), p.7828-7834
- Ort / Verlag
- New York: IEEE
- Erscheinungsjahr
- 2020
- Quelle
- IEEE/IET Electronic Library
- Beschreibungen/Notizen
- The spread spectrum signal detection problem is examined in colored noise with an unknown covariance matrix. When the receiver is equipped with a symmetrically spaced linear array, persymmetry exists in the received data. We exploit the persymmetric structures to design adaptive detectors according to the principles of generalized likelihood ratio test (GLRT), Wald test, and Rao test. It turns out that the proposed GLRT has the same form as the proposed Wald test, and the Rao test does not exist. We prove that the proposed detector exhibits a constant false alarm rate against the unknown noise covariance matrix. Numerical examples demonstrate that the proposed detector has better performance than its non-persymmetric counterpart.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 0018-9448eISSN: 1557-9654DOI: 10.1109/TIT.2020.3014782Titel-ID: cdi_ieee_primary_9160984
- Format
- –
- Schlagworte
- Baseband, Constant false alarm rate, Covariance matrices, Covariance matrix, Detectors, generalized likelihood ratio test, Likelihood ratio, Linear arrays, Mathematical analysis, Matrix methods, persymmetry, Rao test, Receivers, Signal detection, Spread spectrum, Spread spectrum signals, Spread spectrum transmission, Symmetric matrices, Wald test