Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Zbigniew Gajo"'
Autor:
Karol Abratkiewicz, Zbigniew Gajo
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 15255-15268 (2024)
This article deals with practical considerations on signal processing in passive radars. First, the Zak transform is used to approximate the cross-ambiguity function (CAF) commonly applied in passive coherent location (PCL). Next, an efficient method
Externí odkaz:
https://doaj.org/article/d2adf5cc60c041dfa1186fadfc94b572
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 16, Pp 9193-9206 (2023)
Flying targets are becoming increasingly maneuverable, contributing to the growing problem of their detection with active and passive radars. Rapid acceleration causes blurring of the target echo on the range-Doppler (RD) map, which reduces the signa
Externí odkaz:
https://doaj.org/article/6ddf93557e32467e8a14c37e35e0e8eb
Publikováno v:
Sensors, Vol 19, Iss 16, p 3627 (2019)
This article presents a novel approach to the estimation of motion parameters of objects in passive forward scattering radars (PFSR). In such systems, most frequency modulated signals which are used have parameters that depend on the geometry of a ra
Externí odkaz:
https://doaj.org/article/e595af99d2874d4a940ffa9df827d2b7
Publikováno v:
IEEE Sensors Journal. 21:19000-19012
The article describes algorithms for the retrieval of linear frequency modulated (LFM) pulses from a received signal which is corrupted by noise and multipath reflections from ground and stationary objects. Such a problem appears, for example, in ele
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e03cd615ba5154e09272249b5ab9c12
https://doi.org/10.1109/jsen.2021.3087319
https://doi.org/10.1109/jsen.2021.3087319
Autor:
Zbigniew Gajo
Publikováno v:
2020 Baltic URSI Symposium (URSI).
This paper concerns the problem of maximum likelihood (ML) estimation in the case of impulsive observations modeled by heavy-tailed $\alpha$ -stable distributions. To describe analytically the cost function in ML estimation criterion the Fox function
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8635a3f2ec620e67bd9625d54c278cdd
https://doi.org/10.23919/ursi48707.2020.9254052
https://doi.org/10.23919/ursi48707.2020.9254052
Autor:
Marcin Baczyk, Konrad Jedrzejewski, Krzysztof Kulpa, Zbigniew Gajo, Jacek Misiurewicz, Lukasz Maslikowski, Mateusz Malanowski
Publikováno v:
2019 IEEE Radar Conference (RadarConf).
The paper is focused on Doppler-spread clutter removal in mobile passive radar. The presented algorithm is based on CLEAN technique, which was developed for radio astronomy, but is commonly used for passive radar. The algorithm was designed for appli
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b6db77a7dd8d8f07f1043310337e1c44
https://doi.org/10.1109/radar.2019.8835846
https://doi.org/10.1109/radar.2019.8835846
Publikováno v:
2018 22nd International Microwave and Radar Conference (MIKON).
The main problem of target detection in passive radar placed on mobile platform is the Doppler spread of the clutter. Illumination signal can be treated as the random signal and using integration with BT gain only BT dynamin ∗strongest peaks to the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2f2e4009741373ad9d874e3c29cb4ed
https://doi.org/10.23919/mikon.2018.8405295
https://doi.org/10.23919/mikon.2018.8405295
Autor:
Janusz S. Kulpa, Krzysztof Kulpa, K. A. Lukin, Jacek Misiurewicz, Zbigniew Gajo, Volodymyr Kudriashov, Pavlo Vyplavin, Vladimir Palamarchuk
Publikováno v:
IEEE Transactions on Aerospace and Electronic Systems. 51:3364-3373
Detection of small changes in natural formations and human-made constructions is a promising application of synthetic aperture radar (SAR). This paper deals with a specific radar, which is a ground-based SAR using noise waveform. Being fully coherent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2db1174e38d2e005e4c222c78b32af91
https://doi.org/10.1109/taes.2015.140537
https://doi.org/10.1109/taes.2015.140537
Autor:
Anatoliy Mogila, Krzysztof Kulpa, K. A. Lukin, Zbigniew Gajo, Jacek Misiurewicz, Pavlo Vyplavin
Publikováno v:
IET Radar, Sonar & Navigation. 2:263-273
A new method for quality enhancement in a noise synthetic aperture radar (SAR) image and the first results of its application to the SAR image generated with the use of a bistatic Ka-band ground-based noise waveform SAR (GB NW-SAR) are presented. A S
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a7099b5e0360ae8610a647cdf824bd1f
https://doi.org/10.1049/iet-rsn:20070165
https://doi.org/10.1049/iet-rsn:20070165
Publikováno v:
2014 15th International Radar Symposium (IRS).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a8d66c4233e2ff36c3b71e29f171dc79
https://doi.org/10.1109/irs.2014.6869284
https://doi.org/10.1109/irs.2014.6869284