Method for in-orbit multiple receive antenna pattern testing

Details Method for in-orbit multiple receive antenna pattern testing Method for in-orbit multiple receive antenna pattern testing

1999-02-04

2000-12-05

Urban, Edward F.

Telecommunications

Transmitter and receiver at separate stations

Having measuring, testing, or monitoring of system or part

455 121, 455 25, H04B 1700

Patent

active

061578177

ABSTRACT:
A method of testing in-orbit communications satellite receive antennas from a single ground test station. The ground test station transmits an uplink test signal to the orbiting satellite. Telemetry circuitry onboard the satellite measures the power level of the uplink signal received and converts it to a corresponding digital value. The satellite's position is slewed over angles approximately covering the receive antenna areas of reception. The power level of the received uplink test signal and satellite orientation information are transmitted to the ground test station in the satellite's telemetry data stream. A computer at the ground test station plots the power level with respect to the satellite's corresponding orientation to map the receive antenna pattern. In an alternative embodiment, a plurality of receive antennas are tested simultaneously.

REFERENCES:
patent: 4754496 (1988-06-01), Fishkin et al.
patent: 4862514 (1989-08-01), Kedjierski
patent: 5187805 (1993-02-01), Bertiger et al.
patent: 5758260 (1998-05-01), Wiedeman
Bernard Kasstan, "Recent Advances in `In-Orbit` Communication Satellites", International Journal of Satellite Communication, vol. 13, pp. 377-401, 1995.
Kasstan, Bernard, "In-Orbit Testing of Communications Satellites: An Introduction", International Journal of Satellite Communications, Sep.-Oct. 1995, vol. 13, No. 5.
Egly et al., "In-Orbit Test of the First Hughes United States Direct Broadcast Satellite", International Journal of Satellite Communications, Sep.-Oct. 1995, vol. 13, No. 5, 301-312.
Kasstan, et al., "Recent Advances in In-Orbit Testing of Communications Satellites", International Journal of Satellite Communications, Sep.-Oct. 1995, vol. 13, No. 5, 377-401.
Moens, et al., ESA's In-orbit Test Facilities for Communications Satellites, International Journal of Satellite Communications, Sep.-Oct. 1995, vol. 13, No. 5, 403-412.

Affiliated with

Also associated with

Rating

Method for in-orbit multiple receive antenna pattern testing does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for in-orbit multiple receive antenna pattern testing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for in-orbit multiple receive antenna pattern testing will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-969289