Capon and Apes Spectrum Estimation for Real-valued Signals
نویسندگان
چکیده
This paper considers the problem of estimating the spectrum of real-valued signals. We propose real-valued versions of the Capon and the APES spectral estimators. The estimators are derived as members of the Matched-Filterbank (MAFI) estimator class as introduced in [1]. Furthermore, we show that the real-valued estimators will be unbiased, whereas the complex-valued estimators will have a (slight) bias for real-valued data. Finally, we conclude the paper with a numerical example illustrating the performance of the proposed estimators.
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