Innovative Multi-Target Estimating with Clutter-Suppression Technique for Pulsed Radar Systems
| العنوان: | Innovative Multi-Target Estimating with Clutter-Suppression Technique for Pulsed Radar Systems |
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| المؤلفون: | Yuan Pin Cheng, Jo-Yen Nieh |
| المصدر: | Sensors, Vol 20, Iss 2446, p 2446 (2020) Sensors Volume 20 Issue 9 Sensors (Basel, Switzerland) |
| بيانات النشر: | MDPI AG, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | moving target indication, Computer science, 0211 other engineering and technologies, 02 engineering and technology, matched filter, lcsh:Chemical technology, Biochemistry, Moving target indication, Article, Analytical Chemistry, symbols.namesake, 020210 optoelectronics & photonics, 0202 electrical engineering, electronic engineering, information engineering, Chirp, Waveform, Computer vision, lcsh:TP1-1185, Electrical and Electronic Engineering, linear frequency modulation, Instrumentation, 021101 geological & geomatics engineering, Pulse-Doppler radar, business.industry, Matched filter, comb filter, pulse compression, clutter suppression, Atomic and Molecular Physics, and Optics, Doppler shift compensation, Pulse compression, symbols, Clutter, Artificial intelligence, business, Doppler effect, Frequency modulation |
| الوصف: | Linear frequency modulation (LFM) waveforms have high Doppler-shift endurance because of the relative wide modulation bandwidth to the Doppler variation. The Doppler shift of the moving objects, nevertheless, constantly introduces obscure detection range offsets despite the exceptional Doppler tolerance in detection energy loss from LFM. An up-down-chirped LFM waveform is an efficient scheme to resolve the true target location and velocity by averaging the detection offset of two detection pairs from each single chirp LFM in opposite slopes. However, in multiple velocity-vary-target scenarios, without an efficient grouping scheme to find the detection pair of each moving target, the ambiguous detection results confine the applicability of precise target estimation by using these Doppler-tolerated waveforms. A succinct, three-multi-Doppler-shift-compensation (MDSC) scheme is applied to resolve the range and velocity of two moving objects by sorting the correct LFM detection pair of each target, even though the unresolvable scenarios of two close-by targets imply a fatal disability of detecting objects under a cluttered background. An innovative clutter-suppressed multi-Doppler-shift compensation (CS-MDSC) scheme is introduced in this research to compensate for the critical insufficient of resolving two overlapping objects with different velocities by solely MDSC. The CS-MDSC has been shown to successfully overcome this ambiguous scenario by integrating Doppler-selective moving target indication (MTI) filters to mitigate the distorting of near-zero-Doppler objects. |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 1424-8220 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ae1c23735b5b266472ccde08aa8fb0fd https://www.mdpi.com/1424-8220/20/9/2446 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....ae1c23735b5b266472ccde08aa8fb0fd |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14248220 |
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