Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Y A, Gaffar"'
Publikováno v:
Electronics Letters. 56:729-732
Fractional-N phase locked loops (PLLs) offer a low-cost solution to the precision frequency ramp requirements of frequency-modulated continuous-wave (FMCW) radar. In this application, however, the infamous spurious signals generated by these PLLs hav
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d5cb1fcf695968278804a5526c4f65d9
https://doi.org/10.1049/el.2020.0764
https://doi.org/10.1049/el.2020.0764
Publikováno v:
2019 IEEE Radar Conference (RadarConf).
The radioCamera is a fully polarimetric, C-Band imaging radar (SAR) for sub 20 kg drones, under development by droneSAR (Pty) Ltd. While designing this 1 kg system, a number of unconventional FMCW architectures had to be explored in simulation and pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c29b182ac1bd69c83b169ef22e081ad3
https://doi.org/10.1109/radar.2019.8835721
https://doi.org/10.1109/radar.2019.8835721
Publikováno v:
2018 International Workshop on Computing, Electromagnetics, and Machine Intelligence (CEMi).
In this paper, a three-layer homogeneous medium (air, vegetation, and ground) is developed with the electrical properties (relative permittivity and conductivity) estimated using experimental measurements. This is the first step toward the developmen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f428f1bd65335a52360ace78359506a2
https://doi.org/10.1109/cemi.2018.8610631
https://doi.org/10.1109/cemi.2018.8610631
Autor:
Nadia G. Elhefnawy, Mohamed S. Eladawy, Tawheeda Y. Abdel-Gaffar, Mohamed A. El-Etriby, Sahar M. Nour El-Din, Rabah M. Shawky, Rasha Elsherif, Magda S. ElMoneiri
Publikováno v:
Egyptian Journal of Medical Human Genetics. 11:143-151
BackgroundOver recent years it has become apparent that the hepatocyte mitochondrion functions both as a cause and as a target of liver injury. Resultant dysfunction of mitochondria yields deficient oxidative phosphorylation, increased generation of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f152253e2ecf1052069b57cf8551397b
https://doi.org/10.1016/j.ejmhg.2010.10.006
https://doi.org/10.1016/j.ejmhg.2010.10.006
Publikováno v:
IEEE Geoscience and Remote Sensing Letters. 5:560-563
Inverse synthetic aperture radar (ISAR) is an imaging technique that is dependent on an object's rotational motion over a coherent processing interval. Maritime vessels and aircraft possess 3-D rotational motion, whereas it is only their ISAR contrib
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ccc7af71bbd633fbf8ae53aa4b3015d
https://doi.org/10.1109/lgrs.2008.2001851
https://doi.org/10.1109/lgrs.2008.2001851
Publikováno v:
2015 IEEE Radar Conference.
In modern radar systems with high range resolution, the statistical properties of clutter have a significant effect on the performance of the radar. Analyzing the radar returns from various clutter terrains is essential when aiming to optimize the de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::01d2ef3f450d7072005a7b3cddc8b2bf
https://doi.org/10.1109/radarconf.2015.7411869
https://doi.org/10.1109/radarconf.2015.7411869
Autor:
M. Y. Abdul Gaffar, Jacques E. Cilliers, R. De Wind, Asem Melebari, Amer Melebari, Waleed Alomar
Publikováno v:
2015 IEEE Radar Conference.
A major challenge in radar design is to not overflow the processor with false detections. This paper investigates the performance of Constant False Alarm Rate (CFAR) algorithms on maintaining a fixed false alarm rate when windowing is used to reduce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d8b8acf6e496a9ea7fa9451866e483dd
https://doi.org/10.1109/radarconf.2015.7411889
https://doi.org/10.1109/radarconf.2015.7411889
Publikováno v:
2015 IEEE Radar Conference.
A major challenge in radar detection is to optimize both the detection performance and computation cost. In Constant False Alarm Rate (CFAR) algorithms, different detectors can be implemented like linear, square law or Bessel detectors. These detecto
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e6ffe0e5d0513b61bd4b5a52e50c74c
https://doi.org/10.1109/radarconf.2015.7411913
https://doi.org/10.1109/radarconf.2015.7411913
Publikováno v:
2015 European Radar Conference (EuRAD).
A priori knowledge of the clutter statistics is required in maximizing a radar detection range. Much research has been done in analyzing various types of land clutter terrains including urban, forest and crops terrains. However, analysis of palm tree
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::094d5bd0c044f045cb3391b1f78b6479
https://doi.org/10.1109/eurad.2015.7346248
https://doi.org/10.1109/eurad.2015.7346248
Publikováno v:
Eastern Mediterranean Health Journal. 8:521-536
This study looked at the frequency and determinants of unplanned births among women in Beheira governorate, Egypt, and the effects on antenatal and postnatal care sought by the mother for herself and her child. Unintended births comprised 23.6%; 13.8
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef40369a427b3637068af81a45d36735
https://doi.org/10.26719/2002.8.4-5.521
https://doi.org/10.26719/2002.8.4-5.521