Zobrazeno 1 - 10
of 146
pro vyhledávání: '"long-time coherent integration"'
Publikováno v:
Remote Sensing, Vol 16, Iss 10, p 1798 (2024)
This paper addresses the problem of weak maneuvering target detection in the space-based bistatic radar system through long-time coherent integration (LTCI). The space-based bistatic radar is vulnerable to the high-order range migration (RM) and Dopp
Externí odkaz:
https://doaj.org/article/039af25be2b74394921f4b8f1c841fee
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 16, Pp 2262-2274 (2023)
Long-time coherent integration is an effective approach to improve detection performance for weak air moving targets (AMTs). The range position variation and azimuth Doppler variation will easily exceed range gate and Doppler resolution in a long obs
Externí odkaz:
https://doaj.org/article/1cfbc873098e43a1b751dc95b4890aa2
Publikováno v:
IET Radar, Sonar & Navigation, Vol 16, Iss 12, Pp 1977-1996 (2022)
Abstract Coherent integration of complex manoeuvering targets at high speed and acceleration causes range and Doppler frequency migration and lead to large computational burdens and parameter estimation error. To solve this, the geometric‐auxiliary
Externí odkaz:
https://doaj.org/article/a07ca341386d49caa8125904bcbd57ae
Akademický článek
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Publikováno v:
Leida xuebao, Vol 10, Iss 6, Pp 956-969 (2021)
In the traditional coherent radar signal processing, the cascaded processing with pulse compression followed by coherent integration cannot achieve the maximum accumulation of high-speed target’s echo energy in theory. In addition, the result of th
Externí odkaz:
https://doaj.org/article/8368dd3981e34ac798409dacb98c9037
Akademický článek
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Autor:
Renli Zhang, Nan Xu
Publikováno v:
Remote Sensing, Vol 15, Iss 17, p 4227 (2023)
In order to enhance the detection and parameter estimation capacity to the maneuvering target with complex motions, a low complexity coherent integration and parameter estimation method named SOKT-IAR-LVD is proposed in this paper. In SOKT-IAR-LVD, f
Externí odkaz:
https://doaj.org/article/9a06cf3df5b3416abad54471e2b07b83
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 14, Pp 5818-5830 (2021)
In this article, we propose a new weak maneuvering target detection method in a sea environment with a Radon-fractional Fourier transform (RFrFT) canceller, which can efficiently suppress the sea clutter and detect targets with low computations. To a
Externí odkaz:
https://doaj.org/article/79883761654147b3b9f2f24a740b3949
Publikováno v:
IEEE Access, Vol 8, Pp 30458-30466 (2020)
Long time coherent integration technique is one of the most important methods to improve the radar detection ability of a weak maneuvering target. However, the integration performance may be greatly influenced by the range migration and Doppler migra
Externí odkaz:
https://doaj.org/article/35f22cd168b84e33a0275be55bcdde53
Publikováno v:
IEEE Access, Vol 8, Pp 115646-115654 (2020)
This paper considers the coherent integration problem for a low-observable maneuvering target, where the velocity and acceleration result in range migration (RM) and Doppler frequency migration (DFM) within the coherent pulse interval. A novel method
Externí odkaz:
https://doaj.org/article/939559cfd1e74d45a5347e173d9d98cf