کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
848747 909250 2015 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Design of LFM cancelling system based on group delay
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Design of LFM cancelling system based on group delay
چکیده انگلیسی

This paper presents an active stealth system for the linear frequency modulation (LFM) signal which based on the group delay of it. The cancelling system structure is given and the conditions that can be generated for cancelling the radar echo are presented. By making the LFM signal and its delayed signal multiplication to obtained the frequency difference between them. And then frequency shift the LFM signal using the difference. Finally, according to the target's RCS database by amplitude and phase modulation to get the cancelling signal which having the same frequency as the echo pulse but with the opposite phase. Theoretical analysis and simulation show that the system can workable when the phase error and the time delay is relatively large.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optik - International Journal for Light and Electron Optics - Volume 126, Issue 4, February 2015, Pages 382–385
نویسندگان
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