Raytheon Company

Larisa Angelique Natalya Stephan

William B Noble

Daniel G Thompson

Julia L Karl

David W Tang

David O Lahti

Paul Yue

Steven G Danielson

Harry B Marr

Harry Bourne Marr, Jr

Thomas F Brukiewa

Walter F Schoonover, Jr

James Skora

Methods and apparatus to provide clutter rejecting built-in-test and/or fault isolation of individual array elements in assignment-based AESAs. BIT beam states for array element testing can be stored in AESA memory for rapid assignment sequencing of RF waveform generators and receive processing. Simultaneously transmitted signals for BIT sequences have unique signal characteristics that allow test signal clutter rejection on the receive side processing.

Clutter rejecting built in test for assignment-based AESA systems

Methods and apparatus to provide built-in-test and/or fault isolation of individual array elements in assignment-based AESAs. BIT beam states for array element testing can be stored in AESA memory for rapid assignment sequencing of RF waveform generators and receive processing. Assignment-based selection can be used for AESA BIT beam states.

Built-in-test (BIT) for assignment-based AESA systems

A system includes a library of elements to create a model describing a waveform parameter technique. A constraint checker verifies that the created model is correct by construction by needing no verification after compilation. The constraint checker also implements a valid programmable device build according to the waveform parameter technique. A placement decision module receives the verified models produces a placement decision for placing the waveform parameter technique based on the verified model in a programmable device. A synthesis tool receives the verified model from the placement decision module and synthesizes the waveform parameter technique based on the verified model. A link/loader receives the placement decision from the placement decision module and receives the synthesized technique from the synthesis tool. The link/loader also places the waveform parameter technique in the programmable device according to the placement decision.

Runtime creation, assignment, deployment and updating of arbitrary radio waveform techniques for a radio waveform generation device

A system for controlling an active electronically scanned array (AESA) antenna, which enables the AESA antenna to switch rapidly between different antenna states, includes memories () connected to a common address bus (). Each memory () is also connected to a digitally controlled RF signal transmission block () within the AESA antenna, and stores digital control words for the digitally controlled RF signal transmission block (). When a new address is provided on the address bus (), each memory () outputs a new digital control word to its respective digitally controlled RF signal transmission block (), causing a change in the state of the AESA antenna.

Memory based electronically scanned array antenna control

Embodiments of a system and method for runtime creation, assignment, deployment and updating of arbitrary radio waveform techniques for a radio waveform generation device are generally described herein. In some embodiments, a parser is arranged to parse packet data files to generate channel properties associated with at least one of a plurality of techniques. A user application may be coupled to the parser and arranged to process the channel properties into channelized waveform data according to the at least one of the plurality of techniques. A packetizer may be coupled to the user application and arranged to packetize the channelized waveform data. A digital-to-analog converter may be arranged to convert the channelized waveform data to analog RF signals representing the waveform corresponding to the at least one of the plurality of techniques.

Disclosed subject matter relates to techniques for allowing multiple transmit/receive assignments to share antenna resources in an efficient manner. The techniques may be used with, for example, transmit/receive assignments that are non-deterministic in nature. In some implementations, transmit/receive assignments each have a corresponding priority value. Transmit/receive assignments are permitted to contend for available antenna resources based, at least in part, on priority.

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Los Angeles, CA, United States of America

Larisa Angelique Natalya Stephan