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- George C. Valley, George A. Sefler, T. Justin Shaw
- Optics letters
- 2012

We demonstrate an optical mixing system for measuring properties of sparse radio frequency (RF) signals using compressive sensing (CS). Two types of sparse RF signals are investigated: (1) a signalâ€¦ (More)

- Carlos Collado, Jordi Mateu, T. Justin Shaw, Juan M. Oâ€™Callaghan
- 2002

This article describes a procedure for the calculation of the intermodulation behavior of the TM01 0 mode in high temperature superconducting (HTS) disk resonators from a description of the local HTSâ€¦ (More)

- Sylvia A. Hobart, T. Justin Shaw
- Eur. J. Comb.
- 1999

where J is the all ones matrix and I is the identity. These matrix conditions are equivalent to the combinatorial conditions that the graph is both inand out-regular, and that the number of directedâ€¦ (More)

- T. Justin Shaw, George C. Valley
- 2010 18th European Signal Processing Conference
- 2010

The conventional method for determining target angle of arrival with an array of sensors is to digitize the output of each sensor at the Nyquist sampling rate for the system bandwidth and use digitalâ€¦ (More)

The first integration of a 24 x 25 array of processors for high speed optimal path planning is reported. Based on programmed terrain costs (traversal time), the IC determines, in parallel, theâ€¦ (More)

- Jordi Mateu, Carlos Collado, T. Justin Shaw, Juan M. Oâ€™Callaghan
- 2002

We have developed a method to calculate the distribution of fundamental and spurious fields in a metallic cylindrical cavity with superconducting endplates in which signals at two differentâ€¦ (More)

- Shawna K Tazik, Megan Pearl, +5 authors Michael L Myrick
- The Analyst
- 2015

Our laboratories have recently developed a flow-through imaging photometer to characterize and classify fluorescent particles between 3 and 47 Î¼m in size. The wide aperture of the objective lens (0.7â€¦ (More)

- T. Justin Shaw
- 2012

Compressive sensing (CS) has been widely investigated as a method to reduce the sampling rate needed to obtain accurate measurements of sparse signals (Donoho, 2006; Candes & Tao, 2006; Baraniuk,â€¦ (More)

For a given terrain to be traversed, it is computationally intensive to determine the fastest route between two points, and for defense or civilian emergency dispatching applications, computationâ€¦ (More)

- George C. Valley, George A. Sefler, T. Justin Shaw
- 2016 Optical Fiber Communications Conference andâ€¦
- 2016

We review photonic subsystems for undersampling and compressive sensing of GHz-band RF signals. We focus on methods for performing the compressive measurement and on the properties of RF signalsâ€¦ (More)