کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4977752 | 1451933 | 2017 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
On improvement of joint estimation of DOA and PPS coefficients impinging on ULA
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
پردازش سیگنال
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
This paper considers joint estimation of the direction-of-arrival (DOA) and coefficients of polynomial-phase signal (PPS) that impinge an uniform linear sensor array (ULA). Recently introduced method referred to as the polynomial beamformer (PB) being the maximum likelihood estimator for these parameters suffers from high computational complexity due to a multidimensional search. Hence, its applicability is limited only to the second-order PPSs while it is unfeasible for higher-order PPSs as it is heavily reliant on the PPS order. A low complexity estimator that utilizes similar strategy as the PB is proposed in this paper. Statistical study shows that the proposed approach outperforms the state-of-the-art methods in terms of signal-to-noise ratio (SNR) threshold and mean-squared error (MSE).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Signal Processing - Volume 134, May 2017, Pages 209-213
Journal: Signal Processing - Volume 134, May 2017, Pages 209-213
نویسندگان
Predrag RakoviÄ, Marko SimeunoviÄ, Igor DjuroviÄ,