نتایج جستجو برای: ultra

تعداد نتایج: 58116  

Journal: :IJWMC 2007
William Stewart Yang Xiao Bo Sun Hsiao-Hwa Chen

The IEEE 802.15.3 specification is proposed for short-range high-speed Wireless Personal Area Networks (WPANs). Furthermore, it is proposed by the IEEE 802.15.3 a task group for Ultra-Wideband (UWB) transmission, which is an emerging wireless technology for future indoor and outdoor applications. This paper gives a survey on various security aspects and mechanisms in the IEEE 802.15.3 WPANs. It...

2011
Saleh Alshehri Sabira Khatun Adznan B. Jantan Raja Syamsul Azmir Raja Abdullah Rozi Mahmud Zaiki Awang

2007
Kiyoo Itoh Masashi Horiguchi Hitoshi Tanaka

In undergoing this life, many people always try to do and get the best. New knowledge, experience, lesson, and everything that can improve the life will be done. However, many people sometimes feel confused to get those things. Feeling the limited of experience and sources to be better is one of the lacks to own. However, there is a very simple thing that can be done. This is what your teacher ...

Journal: :IEICE Transactions 2013
Yoshihiro Niwa Shouhei Kidera Tetsuo Kirimoto

Ultra wideband radar is one of the most promising techniques for non-invasive imaging in a dielectric medium, which is suitable for both medical screening and non-destructive testing applications. A novel imaging method for such an application is proposed in this brief paper, which has been extended from the advanced range points migration method to a multi-static observation model with circula...

Journal: :Wireless Personal Communications 2007
Mario E. Magaña Yuhao Chang

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