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Bozeman, MT, United States

Grant
Agency: Department of Defense | Branch: Navy | Program: SBIR | Phase: Phase I | Award Amount: 79.88K | Year: 2014

We proposed to analyze and demonstrate phase noise detection of emitters across a wide bandwidth>20 GHz with a novel RF sensor, and to identify and develop a set of approaches to make passive measurements of the signatures and phase noise of non-cooperative antenna platform systems, utilizing the emissions from the antenna and/or the reflections off the antenna from jammers and other transmitters. We will determine technical feasibility through modeling and simulation. We aim to demonstrate these techniques, and promote transition of these techniques to SEWIP Block2/3.


Grant
Agency: Department of Defense | Branch: Navy | Program: SBIR | Phase: Phase II | Award Amount: 150.00K | Year: 2012

Navy electronic support (ES) functions require receivers making true wideband RF / microwave measurements on transient & frequency hopping signals over 1-40 GHz and beyond, including spectral mapping (SM) and direction finding (DF) with low latency. Wideband digitizers in RF/Microwave receivers are expensive, create ~50 Gs/s of data to be handled in real time by large computer systems, and have insufficient performance over wideband stares for Naval operations. The S2 Corp extreme bandwidth analyzer and correlator (EBAC) hardware is an RF / microwave receiver capable of SM and DF to be improved and tested on this effort. The EBAC is comprised of RF / microwave, photonic, cryogenic and electronic / digital components. RF signals are optically modulated at the antenna and fiber optically connected to other receiver components. On this program, we aim to improve the performance of our hardware, and field test it to demonstrate the capabilities. The technical goals for both SM and DF hardware in laboratory and field tests is over 16 GHz bandwidth, 60 dB spur free dynamic range, ~2 ms reconfiguration latency, variable frame rate from 2-200 kHz, variable resolution bandwidth from 0.04-10 MHz, and direction finding accuracy of


Grant
Agency: Department of Defense | Branch: Navy | Program: SBIR | Phase: Phase II | Award Amount: 1.95M | Year: 2012

Navy electronic support (ES) functions require receivers making true wideband RF / microwave measurements on transient & frequency hopping signals over 1-40 GHz and beyond, including spectral mapping (SM) and direction finding (DF) with low latency. Wideband digitizers in RF/Microwave receivers are expensive, create ~50 Gs/s of data to be handled in real time by large computer systems, and have insufficient performance over wideband stares for Naval operations. The S2 Corp extreme bandwidth analyzer and correlator (EBAC) hardware is an RF / microwave receiver capable of SM and DF to be improved and tested on this effort. The EBAC is comprised of RF / microwave, photonic, cryogenic and electronic / digital components. RF signals are optically modulated at the antenna and fiber optically connected to other receiver components. On this program, we aim to improve the performance of our hardware, and field test it to demonstrate the capabilities. The technical goals for both SM and DF hardware in laboratory and field tests is over 16 GHz bandwidth, 60 dB spur free dynamic range, ~2 ms reconfiguration latency, variable frame rate from 2-200 kHz, variable resolution bandwidth from 0.04-10 MHz, and direction finding accuracy of


Patent
Montana State University and S2 Corporation | Date: 2015-03-27

A method and apparatus includes an optical source for a single order single-sideband suppressed-carrier optical signal with a bandwidth that scales from over 4 gigaHertz or is at least 8 GHz from an optical carrier frequency. In an example embodiment, an apparatus includes a stable laser source configured to output an optical carrier signal at a carrier frequency. The apparatus includes a radio frequency electrical source configured to output an electrical radio frequency signal with a radio frequency bandwidth less than one octave. The apparatus also includes an optical modulator configured to output an optical signal with the optical carrier signal modulated by the radio frequency signal in a plurality of orders (harmonics) of optical frequency sidebands. The apparatus further includes an optical filter configured to pass one single order optical frequency sideband of the optical signal, which sideband does not overlap the sideband of any other harmonic.


Grant
Agency: NSF | Branch: Standard Grant | Program: | Phase: | Award Amount: 149.84K | Year: 2012

This Small Business Innovation Research (SBIR) Phase I project will use and adapt a photonic signal processor for extreme bandwidth spread spectrum wireless communications. The intellectual merit of the proposed project focuses on applying prior knowledge and the core photonic analog optical signal processing technology with new approaches and extensions of spread spectrum techniques to an important emerging commercial application, namely high bandwidth wireless communication at high frequencies. The widespread demand for wireless communication has created contention for RF spectrum, and has motivated extending communications to unlicensed bands and higher frequencies. The objectives of the project are to 1) perform transmitter analysis and encoding schemes, 2) to show spread spectrum communication functionality in laboratory hardware based demonstrations over the frequencies of 3.1-10.6 GHz, and 3) to study desired parameters and tradeoffs for the implementation and commercialization of communications links. The anticipated results of the research are demonstrations that show these capabilities, with increased knowledge of the requirements and tradeoffs of the proposed technique.

The broader impact / commercial potential of this project are in the field of wideband, wireless communications. From this technology development effort, there are significant market opportunities for the emerging 60-90 GHz E band wireless market. The enabling photonic signal processing technology has applicability for commercial, military and intelligence community in the form of full spectrum surveillance, spectrum analysis, direction finding, navigation, and imaging, along with the proposed communications approach proposed. Benefits of the proposed communication approach include transmissions at high data rates, asynchronous burst mode operation, providing secure, low probability of intercept transmissions and overcoming multipath issues.

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