Data Communications to Trains From High-Altitude Platforms

• Published in: IEEE transactions on vehicular technology Vol. 56; no. 4; pp. 2253 - 2266
• Main Authors: White, G.P., Zakharov, Y.V.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.07.2007; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Antenna arrays; Antennas; Antennas and propagation; Applied sciences; Array signal processing; Arrays; Data communication; Detection, estimation, filtering, equalization, prediction; Direction of arrival estimation; Estimates; Exact sciences and technology; high-altitude platforms (HAPs); Information, signal and communications theory; Interference constraints; Kalman filters; Line-of-sight propagation; Links; Platforms; Radiocommunications; Rail transportation; Railroad tunnels; Satellite telecommunications. Space telecommunications; Signal and communications theory; Signal, noise; smart antennas; Stations; stratospheric platforms; Systems, networks and services of telecommunications; Telecommunications; Telecommunications and information theory; Tracking; tracking filters; Trains; Transmission and modulation (techniques and equipments); Line of sight propagation; Direction-of-arrival estimation; Parameter estimation; Array signal processing; Base station; Signal estimation; Adaptive antenna arrays; Iterative method; Shadow; stratospheric platforms; High altitude platform; Beam forming; Accuracy; Tracking filters; Kalman filtering; Rail transportation; smart antennas; Data communication; Antenna array; high-altitude platforms (HAPs); High rate transmission; Target tracking; Wide band transmission; Rail vehicle; Extended Kalman filter; Signal to interference plus noise ratio

The problem of providing simultaneous high data rate communication links to multiple moving railway trains from high-altitude platforms (HAPs) using a "smart" antenna array is addressed. Solutions are provided subject to system-level constraints: the number and position of interferers (tra...