کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
11002936 1451698 2018 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fast sparse spectral estimation for super-resolution SAR sparse imaging
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر پردازش سیگنال
پیش نمایش صفحه اول مقاله
Fast sparse spectral estimation for super-resolution SAR sparse imaging
چکیده انگلیسی
This paper proposes a fast algorithm for sparse spectral estimation to achieve super-resolution SAR (synthetic aperture radar) sparse imaging of complex targets. The fast algorithm used the Newton method and fast Fourier transform (FFT) based preconditioned conjugate gradient (PCG) method to estimate sparse spectral parameters efficiently. Finally, a sparse SAR imaging was obtained based on sparse spectral parameters. It can suppress imaging sidelobe clutter and speckle with a super-resolution. The experiments with simulated and real targets were used to demonstrate the computational efficiency and super-resolution sparse imaging capability of the proposed algorithm.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Digital Signal Processing - Volume 82, November 2018, Pages 230-236
نویسندگان
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