Zobrazeno 1 - 10
of 1 015
pro vyhledávání: '"coherent integration"'
Publikováno v:
Radioengineering, Vol 33, Iss 1, Pp 1-11 (2024)
Weak target detection is a great challenging in radar field. To detect the weak targets with beam migration, a novel tri-dimensional time model (i.e. fast time, slow time, and beam time) and a novel tri-dimensional signal model which based on the tim
Externí odkaz:
https://doaj.org/article/08ab378655674c219ce7f2a42fdfa9cf
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 11485-11502 (2024)
Global navigation satellite system (GNSS)reflected signals have been widely used in remote sensing applications. To overcome the low-power budget of GNSS reflected signals, traditional detection strategies involve extending the coherent processing in
Externí odkaz:
https://doaj.org/article/7cbddff5ff03401d95b99f7d22169145
Publikováno v:
Remote Sensing, Vol 16, Iss 19, p 3601 (2024)
To detect moving weak targets in the dual function radar communication (DFRC) system of an orthogonal frequency division multiplexing (OFDM) waveform, a modified hybrid integration method is addressed in this paper. A high-speed aircraft can cause ra
Externí odkaz:
https://doaj.org/article/9b6f93362ac547f3bba82af19825c91d
Publikováno v:
Sensors, Vol 24, Iss 19, p 6236 (2024)
Long-time coherent integration using frequency hopping signals is a challenging problem for passive bistatic radar due to its frequency hopping characteristics. Apart from range walk, range curve, and Doppler frequency migration, Doppler diffusion ca
Externí odkaz:
https://doaj.org/article/b7ab0b2e50a549e8b577c847eaadbe3f
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
Publikováno v:
Remote Sensing, Vol 16, Iss 7, p 1148 (2024)
In this paper, the possibility of improving target detection performance in passive bistatic radar by exploiting a frequency agile (FA) signal is investigated, namely frequency agile signal-based passive bistatic radar (FAPBR) coherent integration. S
Externí odkaz:
https://doaj.org/article/db138eeb628b4d91ac2690048d4aeb3d
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