USA As Represented by Secretary of the Navy

Jeanne Quimby

Jia-Chi Samuel Chieh

John W Rockway

John D Rockway

Aaron Clawson

Mike Civerolo

A system includes a first low noise amplifier, a second low noise amplifier, a local analog oscillator signal, a signal splitter, a mixer, a mixer, an analog to digital converter and a digital channelizer. The first low noise amplifier outputs a first amplified analog signal based on a received analog antenna signal at a time t. The second low noise amplifier outputs a second amplified analog signal based on the received analog antenna signal at a time t. The local analog oscillator signal outputs a local analog oscillator signal. The signal splitter outputs a split analog oscillator signal and a split analog oscillator signal. The mixer outputs a first mixed signal. The mixer outputs a second mixed signal. The analog to digital converter outputs a combined digital signal. The digital channelizer outputs a received signal based on the combined digital signal.

Techniques and methods for frequency division multiplexed digital beamforming

Aspects of the present invention provide a system and method for using a filter controller and an adjustable narrow-band filter within each sub-band of a communication system. If a channel of the sub-band is being jammed, the filter controller will adjust the adjustable narrow-band filter to notch-filter out only the channel of the sub-band that is being jammed. In this manner, the remaining channel of the sub-band may be used for communication.

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San Diego, CA, United States of America

Jeanne Quimby