کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4977504 1451927 2017 39 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Detection of weak maneuvering target based on keystone transform and matched filtering process
ترجمه فارسی عنوان
شناسایی هدف مانور ضعیف بر اساس تبدیل اسکناس و فرآیند فیلتر همگرا
کلمات کلیدی
هدف مانور ضعیف، محدوده مهاجرت، مهاجرت فرکانس داپلر، تبدیل کیستون، فرآیند فیلتر مطابق،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر پردازش سیگنال
چکیده انگلیسی
Detection of weak maneuvering target often suffers from the problems of the range migration (RM) and the Doppler frequency migration (DFM) within the coherent pulse interval. In order to eliminate the RM and DFM, a new coherent integration method based on keystone transform (KT) and matched filtering process (MFP), i.e., KT-MFP, is proposed. Specifically, this method firstly corrects the linear RM caused by the unambiguous velocity via KT and then the MFP, which jointly searching in the fold factor and acceleration domain, is carried out to remove the residual RM and compensate the DFM. At last, coherent integration of the target's energy is achieved through the slow time Fourier transform (FT). The advantage of the proposed method is that it can obtain superior coherent integration and detection performance for both the slow-moving and fast-moving target, in comparison with the existing algorithms. In addition, KT-MFP could avoid the blind speed sidelobe (BSSL) effect. Numerical simulations are performed to assess the performance from different aspects, i.e., computational complexity, coherent integration for a low-speed target, detection performance for a low-speed target, coherent integration for a high-speed target, detection performance for a high-speed target and coherent integration for multi-targets.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Signal Processing - Volume 140, November 2017, Pages 127-138
نویسندگان
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