Adaptive Interference Canceller in a Digital Phase Array
First Claim
1. A digital phased array comprising:
- a plurality of antenna elements forming a main array of the digital phased array;
a plurality of mixers configured to down-convert data received at respective ones of the antenna elements;
a plurality of analog-to-digital converters configured to digitize data provided by corresponding ones of the mixers; and
a digital signal processor configured to;
receive digitized data including at least one interference signal and at least one desired signal;
determine an angle of arrival of the at least one interference signal;
steer a beam of the main array toward the at least one interference signal based on the determined angle of arrival; and
perform interference cancelation relative to the at least one interference signal.
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Accused Products
Abstract
A digital phased array may include a plurality of antenna elements forming a main array of the digital phased array, a plurality of mixers configured to down-convert data received at respective ones of the antenna elements, a plurality of analog-to-digital converters configured to digitize data provided by corresponding ones of the mixers, and a digital signal processor. The digital signal processor may be configured to receive digitized data including at least one interference signal and at least one desired signal, determine an angle of arrival of the at least one interference signal, steer a beam of the main array toward the at least one interference signal based on the determined angle of arrival, and perform interference cancelation relative to the at least one interference signal.
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Citations
20 Claims
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1. A digital phased array comprising:
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a plurality of antenna elements forming a main array of the digital phased array; a plurality of mixers configured to down-convert data received at respective ones of the antenna elements; a plurality of analog-to-digital converters configured to digitize data provided by corresponding ones of the mixers; and a digital signal processor configured to; receive digitized data including at least one interference signal and at least one desired signal; determine an angle of arrival of the at least one interference signal; steer a beam of the main array toward the at least one interference signal based on the determined angle of arrival; and perform interference cancelation relative to the at least one interference signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method comprising:
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receiving digitized data including at least one interference signal and at least one desired signal from a plurality of antenna elements forming a main array of a digital phased array, the digitized data being down-converted and digitized prior to provision to a digital signal processor; utilizing the digital signal processor to determine an angle of arrival of the at least one interference signal; utilizing the digital signal processor to steer a beam of the main array toward the at least one interference signal based on the determined angle of arrival; and utilizing the digital signal processor to perform interference cancelation relative to the least one interference signal. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A computer program product comprising a computer-readable storage medium having computer-executable program code instructions stored therein, the computer-executable program code instructions comprising program code instructions for:
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receiving digitized data including at least one interference signal and at least one desired signal from a plurality of antenna elements forming a main array of a digital phased array, the digitized data being down-converted and digitized prior to provision to a digital signal processor; utilizing the digital signal processor to determine an angle of arrival of the at least one interference signal; utilizing the digital signal processor to steer a beam of the main array toward the at least one interference signal based on the determined angle of arrival; and utilizing the digital signal processor to perform interference cancelation relative to the at least one interference signal. - View Dependent Claims (17, 18, 19, 20)
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Specification