scholarly journals Systems Engineering of a Terabit Elliptic Orbit Satellite and Phased Array Ground Station for IoT Connectivity and Consumer Internet Access

IEEE Access ◽  
2016 ◽  
Vol 4 ◽  
pp. 9941-9957 ◽  
Author(s):  
Rick L. Sturdivant ◽  
Edwin K. P. Chong
Author(s):  
Rick L. Sturdivant ◽  
Enson Chang ◽  
David Bartholomew ◽  
Ryan A. Brown ◽  
Sarah de Pillis-Lindheim ◽  
...  

Author(s):  
Alaa Nadim Salman ◽  
Shokri Almekdad ◽  
Mohamad Alhariri

Successfully achieving the mission of the unmanned aerial vehicle (UAV) requiring a high gain data link between the UAV and the ground control station (GCS). The antenna of the ground station must has a narrow, precisely guided beam towards the UAV. Widening the beamwidth in phased array will be on the expense of reducing the gain and increasing the possibility of receiving the interference signal, this may lead to the failure in achieving the desired link. This paper presents a new method to achieve an automatic forming of the reception beam and automatic tracking of the UAV’s signal in the digital phased array without the need of the complex digital signal processing algorithms used in smart antenna. The proposed approach is based on the complex vector multiplication and phase conjugation technique. The UAV will stay on the beak of the array factor. The resulted array is a combination between retrodirective array and phased array, with beamwidth equal to the field of view without reducing the gain and with null steering ability.


IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 161542-161550
Author(s):  
Changseong Kim ◽  
Jun Heo ◽  
Kyung-Young Jung ◽  
Hosung Choo ◽  
Yong Bae Park

Author(s):  
Jacek Wilk-Jakubowski

Modern satellite VSAT networks can be applied not only to provide satellite radio and television broadcasting, but also to other domains, such as a two-way Internet access. For this objective it has become necessary to develop appropriate standards and data transmission techniques. An unquestionable advantage of satellite systems is reception range, which translates into possibility of building networks in almost any place on Earth. Depending on the application, such networks can use many topologies. The aim of the article is to review distributed information in this area, as well as to determine the directions of development of the next generation VSAT networks. For this purpose, the literature review has been provided, with due regard to the IEEE Xplore digital library databases, and supported by practical examples.


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