Embodiments provide ground-based beamforming with mutually synchronized spatially multiplexed gateways in a wireless communications system. Some embodiments operate in context of a satellite having a focused-beam feeder antenna that communicates with multiple, geographically distributed gateway terminals (e.g....
A ground based beam forming system ( 400 ) measures and corrects amplitude and phase errors of a plurality of return path signals ( 452 ) traveling from the user terminals ( 16 ) via the satellite ( 11 ) to the at least one gateway ( 12 ), and measures and corrects amplitude and ...
Methods, systems and apparatus for ground-based beamforming of a satellite communications payload (<B>200</B>) within a satellite communications network (<B>100</B>). An embodiment of the invention comprises a satellite (<B>11</B>) communicatively coupled to at least one gateway (<B>12<...
The ground-based beam forming system (1) comprises a satellite (2) and a ground processing base (4). Said satellite (2) is equipped with first transmission / reception means (6, 7) for transmitting and receiving analog signals with remote terminals (8), and second transmitting / receiving ...
The ground-based beam-forming system (1) comprises a satellite (2) and a ground-based processing base (4) equipped with beam-forming means (20). Said satellite (2) is equipped with first transmission/reception means (6, 7) for sending and receiving analog signals with remote terminals (8...
GROUND BEAMFORMING AND INTERFERENCE CANCELLATION FOR TDMA BASED REVERSE-LINK ACCESS SCHEMES 来自 ResearchGate 喜欢 0 阅读量: 21 作者:FD Cecca,G Gallinaro 摘要: MF-TDMA is the access scheme currently used in several satellite networks for supporting the Reverse Link communication channel. The DVB-...
Launched from Cape Canaveral, Florida on April 14, 2008, DBSD G14 is the world's first satellite to utilize a two-way Ground Based Beam Forming (GBBF) system. Designed and built by Space Systems/Loral (SS/L), G1 has 250 fully configurabl... J Walker,B Day,S Xie - Aiaa Internati...
We then study a more general setting with multiple mobile ground-based terminals, and develop an algorithm for dynamically adjusting the UAV heading to maximize the approximate ergodic sum rate of the uplink channel, using a prediction filter to track the positions of the mobile ground nodes. ...
train-to-ground data dumping requirements such as vehicle-mounted video and intelligent O&M data require fast and high-bandwidth train-to-ground high-speed dumping solutions. Huawei launched the AirFlash train-to-ground wireless communication solution, which is based on 5G wireless communication techno...
High Performance Robust Adaptive Beamforming in the Presence of Array Imperfections A high performance robust beamforming scheme is pr Mao,Xiaojun,Zhai,... - 《International Journal of Antennas & Propagation》 被引量: 4发表: 2016年 Beam-Column In-Plane Resistance Based on the Concept of Equivalen...