Microwave single pixel imager (MSPI)
AssigneeThe Government of the United States of America, as represented by the Secretary of the Navy
InventorsJustin P. Bobak, Hatim F. Alqadah, Scott M. Rudolph, Michael W. Nurnberger
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Abstract
A microwave single pixel imager apparatus and method of using same. Sampling a targeted scene includes the following. A plurality of modulated antenna patterns is generated using a reflectarray. A plurality of antenna temperatures respectively corresponding to the plurality of modulated antenna patterns is measured. A retrieved scene corresponding to the sampled targeted scene is generated. Generating a retrieved scene corresponding to the sampled targeted scene includes the following. The plurality of modulated antenna patterns and the corresponding plurality of antenna temperatures are fed into a compressive sensing imaging algorithm.
Claims25
A method comprising:
- Sampling a scene, said sampling the scene comprising:
- generating a plurality of modulated antenna patterns using a reflectarray;
- and
- measuring a plurality of antenna temperatures respectively corresponding to the plurality of modulated antenna patterns;
- and
- generating the scene corresponding to the sampled scene, said generating the scene corresponding to the sampled scene comprising:
- feeding the plurality of modulated antenna patterns and the corresponding plurality of antenna temperatures into a compressive sensing imaging algorithm.
An apparatus comprising:
- a reflectarray comprising:
- a plurality of independently controllable reflector elements, each reflector element of the plurality of independently controllable reflector elements comprising a corresponding independently controllable reflection coefficient;
- a dielectric piston communicating with said each reflector element;
- and
- a linear solenoid actuating said dielectric piston.
An apparatus comprising:
- a reflectarray comprising a plurality of independently controllable reflector elements, each reflector element of the plurality of independently controllable reflector elements comprising a corresponding independently controllable reflection coefficient;
- and
- a computer-readable medium storing instructions that, when executed by a computer, cause the computer to cooperate with said reflectarray to carry out a method, the method comprising:
- sampling a scene, the sampling the scene comprising:
- generating a plurality of modulated antenna patterns using said reflectarray;
- and
- measuring a plurality of antenna temperatures respectively corresponding to the plurality of modulated antenna patterns;
- and
- generating the scene corresponding to the sampled scene, the generating the scene corresponding to the sampled scene comprising:
- feeding the plurality of modulated antenna patterns and the corresponding plurality of antenna temperatures into a compressive sensing imaging algorithm.
Dependencies are inferred from the claim text.