کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6958181 1451937 2017 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Nonlinear processing for enhanced delay-Doppler resolution of multiple targets based on an improved radar waveform
ترجمه فارسی عنوان
پردازش غیرخطی برای افزایش تاخیر - وضوح داپلر چندین هدف بر اساس یک شکل موج پیشرفته رادار
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر پردازش سیگنال
چکیده انگلیسی
In this paper, an improved radar waveform scheme is put forward and a family of nonlinear processing methods is applied for enhanced delay-Doppler resolution in multiple targets scene. A double V-chirp waveform is first proposed to overcome the disadvantages of traditional V-chirp waveform used in the delay-Doppler resolution and detection. Then, a combined operation based on a family of nonlinear processing methods is employed to further enhance the delay-Doppler resolution. Next, a paraboloid function is given as a filter in order to raise the power of the non-center targets presented in the delay-Doppler maps while keeping the delay-Doppler resolution. Finally, numerical simulations in the paper prove the performance improvement of proposed waveform and methods. Besides, discussions about the most suitable chirps' number for the waveform, the influence of targets position and chirp rates chosen, and the design trade-off of double V-chirp waveform in hardware transmitting and detection performance loss are also illustrated in this section, which make the model adaptive to more complex situations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Signal Processing - Volume 130, January 2017, Pages 355-364
نویسندگان
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