{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,5]],"date-time":"2026-06-05T03:34:07Z","timestamp":1780630447631,"version":"3.54.1"},"reference-count":62,"publisher":"World Scientific Pub Co Pte Ltd","issue":"08","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J CIRCUIT SYST COMP"],"published-print":{"date-parts":[[2023,5,30]]},"abstract":"<jats:p> Nowadays, developing the radio frequency (RF)-photonic sensors suitable for several Defence and civil applications is emerging due to its various unique advantages. In today\u2019s scientific world, the involvement of low radar cross-section (RCS) airspace targets, such as unman aerial vehicles, drones, mini-helicopters, ornithopters, bionic birds, etc., is more for the purpose of airspace traffic management\/guidance, materials delivery, legal\/illegal surveillance and Defence\/offense applications. The detection and recognition of such targets using the conventional RF sensors (which process only the main Doppler) is almost impossible. Therefore, extracting the distinctive micro-Doppler (m-D) signatures of these low-RCS targets and using them to image\/differentiate\/recognize their postures become significant which is the main contribution in this paper. A C-band continuous wave RF-photonic sensor is developed and different low-RCS targets: 2\/3 blades rotating propeller system (drones), cone like structure (warhead) and a bionic-bird (spy-bird); are operated in front of it. The different nonlinear postures, of these targets, covered in our experimental measurements are m-D extraction of a slowly moving propeller system, detection of back-and-forth movements of a rotational propeller system, discerning the moving and static rotational propeller systems, simultaneous extraction of m-D signatures of a rotational and moving targets and recognition of flapping\/gliding motions of bionic-bird. The analysis and recognition of all these postures using the experimentally generated m-D signatures are described. <\/jats:p>","DOI":"10.1142\/s0218126623501311","type":"journal-article","created":{"date-parts":[[2022,12,2]],"date-time":"2022-12-02T09:36:02Z","timestamp":1669973762000},"source":"Crossref","is-referenced-by-count":12,"title":["Development of RF-Photonic System for Automatic Targets\u2019 Nonlinear Rotational\/Flapping\/Gliding Signatures Imaging Applications"],"prefix":"10.1142","volume":"32","author":[{"given":"Nargis","family":"Akhter","sequence":"first","affiliation":[{"name":"RF Photonics Laboratory, Electronics Engineering, Defence Institute of Advanced Technology, Pune, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Harish C.","family":"Kumawat","sequence":"additional","affiliation":[{"name":"Electronics and Communication Engineering, SRM Institute of Science and Technology, Tamil Nadu, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A","family":"Arockia Bazil Raj","sequence":"additional","affiliation":[{"name":"RF Photonics Laboratory, Electronics Engineering, Defence Institute of Advanced Technology, Pune, India"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"219","published-online":{"date-parts":[[2022,12,2]]},"reference":[{"key":"S0218126623501311BIB001","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1109\/LGRS.2021.3102039","volume":"19","author":"Kumawat H. 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