کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6952083 | 1451746 | 2014 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
High accuracy and low complexity adaptive Generalized Sidelobe Cancelers for colored noise scenarios
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
پردازش سیگنال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: High accuracy and low complexity adaptive Generalized Sidelobe Cancelers for colored noise scenarios High accuracy and low complexity adaptive Generalized Sidelobe Cancelers for colored noise scenarios](/preview/png/6952083.png)
چکیده انگلیسی
In this paper, we propose to extend further the GSC and the RR-GSC for colored noise scenarios. As shown in this paper, such improvement in colored noise scenarios can be obtained by incorporating a stochastic or a deterministic prewhitening step in the GSC and RR-GSC algorithms. Since the prewhitening increases the computational complexity, a block-wise reduced rank stochastic gradient GSC beamformer is also proposed. The block-wise step allows only one prewhitening step per block while in the previous schemes one per sample was needed. Another proposed advance in colored noise scenarios is the incorporation of the Vandermonde Invariance Transform (VIT). The VIT works as a pre-beamformer which reduces the interferent power of the undesired sources and the colored noise effect. We show by means of simulations the improved results even for highly correlated scenarios.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Digital Signal Processing - Volume 34, November 2014, Pages 48-55
Journal: Digital Signal Processing - Volume 34, November 2014, Pages 48-55
نویسندگان
Ricardo Kehrle Miranda, João Paulo C.L. da Costa, Felix Antreich,