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AssigneeMacdonald, Dettwiler and Associates Inc.
InventorsHaiqing WU, Steve HATZIGEORGIOU, Michel TREMBLAY, Brent STOUTE
Estimating the term…
A calibration system of architecture, apparatus, algorithms and method for optimizing leakage performance of a multi-port amplifier (MPA) for satellite communications. The calibration system comprises simple onboard apparatus and generally on-ground algorithms implementation connected via telecommand and telemetry links. The isolation performance of the MPA is monitored by using a commandable frequency generator and a flexible narrowband receiver. The high performance is achieved by direct and efficient optimization of the aggregate leakage of the MPA. The calibration system may be applied but not limited to Ku and Ka-band high throughput satellite systems.
A system for calibrating a multi-port amplifier transmitting traffic signals using a plurality of high power amplifiers connecting to an input hybrid matrix and an output hybrid matrix, all located onboard a spacecraft, the system comprising a plurality of input couplers connecting upstream to the input hybrid matrix, a plurality of complex gain adjusters connecting between the input hybrid matrix and the plurality of high power amplifiers, a plurality of output couplers connecting downstream of the output hybrid matrix, and a calibration apparatus including a calibration unit connecting to the plurality of input and output couplers, and a processing unit connecting to the calibration unit for implementing and running calibration algorithms.
A method of error correction parameter estimation for calibrating a multi-port amplifier transmitting traffic signals, the method comprising the steps of:
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