Northrop Grumman Systems Corporation

Northrop Grumman Corporation

Michael Steven Muñoz

Garrick Jon Harmon

Zoltan Zvi Stroll

Cyrus Dhalla

Nicholas Francis Di Camillo

Cyrus Asfandiar Dhalla

A filterbank system is provided for reordering subbands of a wideband digital signal. The filterbank system extracts the subbands from a wideband digital input signal into an even channel number group of even channel number subbands and an odd channel number group of odd channel number subbands. The separation of even and odd channel number subbands provides an even channel grouping with guard bands between the even channel number subbands and an odd channel number grouping with guard bands between the odd channel number subbands. The filterbank system then reorders the even channel number subbands and the odd channel number subbands. The reordered subbands are then combined by combining the reordered even channel number subbands and odd channel number subbands into a wideband digital output signal.

Efficient and flexible oversampled filterbank with near perfect reconstruction constraint

A communications system, a communications station, a method of controlling the power to transmitters in a communications station, and a storage medium storing instructions for controlling power to a communications satellite. The power consumed by each transmitter is determined, and desired power settings are determined. The power consumed is compared with the desired power settings. If the power settings are not proper, then it is determined whether the desired power is available. If so, then the power settings are adjusted. If not, then load priorities of the transmitters are determined, and if there is sufficient power to provide for the determined load priorities, the power settings are adjusted. The communications station includes variable gain amplifiers (---n), to provide intermediate signals; high gain amplifiers (---n) for amplifying the intermediate signals to output signals; monitoring power supplies (---n) for determining the power provided by the high gain amplifiers, and a power profile processor () for adjusting the gain of the variable gain amplifiers.

Transmission power control in a satellite communication system

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Redondo Beach, CA, United States of America

Michael Steven Muñoz