A mobile phased array antenna satellite terminal and associated demonstrations with ACTS

Martzaklis, Konstantinos S.; Raquet, C. A.

doi:10.2514/6.1996-1162

Cited by 2 publications

(2 citation statements)

References 2 publications

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“…It is technologically feasible to realize the software radio architecture [5], that is attracting much interest as a means of improving radio technologies by software. Unlike conventional analog-based phased arrays [6,7], a DBF antenna CCC8756-6621/98/070001- 13 © 1998 Scripta Technica Electronics and Communications in Japan, Part 1, Vol. 81, No.…”

Section: Introductionmentioning

confidence: 99%

“…It is technologically feasible to realize the software radio architecture [5], that is attracting much interest as a means of improving radio technologies by software. Unlike conventional analog-based phased arrays [6,7], a DBF antenna does not need hard-wired beam forming networks, including microwave phase shifters, variable attenuaters, power dividers, or combiners. Furthermore, it does not need direction-finding sensors for tracking a desired signal.…”

Section: Introductionmentioning

confidence: 99%

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A land-mobile satellite tracking experiment with a DBF self-beam steering array antenna

Tanaka¹,

Horie²,

Sekiguchi³

et al. 1998

Electron. Comm. Jpn. Pt. I

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This paper discusses a land‐mobile satellite experiment and its results, on a self‐beam steering array antenna implemented by using a digital beam forming (DBF) technique with a compact digital signal processing circuit using ASICs. This antenna allows automatic and open‐loop beam steering toward an unknown signal arrival direction by simple spatial signal processing. Beam‐space maximal‐ratio combining was employed as the steering algorithm. The antenna was mounted on a test van and the basic performance was demonstrated by receiving a signal in the 1.5‐GHz band in a land‐mobile satellite channel with the Japanese ETS‐V satellite. The experiment showed stable beam steering and automatic tracking under real mobile conditions. Reacquisition of the signal arrival after shadowing was also fast enough. Moreover, steering for the direct signal arrival was not affected even with the arrival of a strong, reflected multipath signal. The possibility for optimal combination of multipath signals was demonstrated by multidirectional steering patterns. © 1998 Scripta Technica. Electron Comm Jpn Pt 1, 81(7): 1–13, 1998

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Section: Introductionmentioning

confidence: 99%

“…It is technologically feasible to realize the software radio architecture [5], that is attracting much interest as a means of improving radio technologies by software. Unlike conventional analog-based phased arrays [6,7], a DBF antenna does not need hard-wired beam forming networks, including microwave phase shifters, variable attenuaters, power dividers, or combiners. Furthermore, it does not need direction-finding sensors for tracking a desired signal.…”

Section: Introductionmentioning

confidence: 99%

A land-mobile satellite tracking experiment with a DBF self-beam steering array antenna

Tanaka¹,

Horie²,

Sekiguchi³

et al. 1998

Electron. Comm. Jpn. Pt. I

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Direct data distribution from low-Earth orbit

Budinger¹,

Fujikawa²,

Kunath³

et al.

Proceedings of ICC'97 - International Conference on Communications

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Along with small (1.8 meter), low-cost tracking tenuinals on the ground, the D 3 system enables affordable distribution of data to the end user or archive facility through mterol_rability with commercial terrestrial telccommunic,_ionsnetworks. The D 3 system is applicable to both government and commercial science and communications spacccraR in LEO. The features and benefits of the D3 system concept are described. Starting with typical orbital characteristics, a set of baseline requirements for represmtative applications is developed, including requirements for onboard storage and tracking terminals, and sample link budgets are presented. Characteristics of tbe transmit array amenna and digital cacoder/modulator are described. The architecture and components of the tracking terminal arc described, including technologies for the next generation terminal.Candidate flights of opportunity for risk mitigation and space demonstration of the D 3 features are identified.

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A mobile phased array antenna satellite terminal and associated demonstrations with ACTS

Cited by 2 publications

References 2 publications

A land-mobile satellite tracking experiment with a DBF self-beam steering array antenna

A land-mobile satellite tracking experiment with a DBF self-beam steering array antenna

Direct data distribution from low-Earth orbit

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