One of the most important concerns of remote sensing research has been the quantification of forest structure variables. This issue has been investigated using different remotely sensed data including optical, radar and lidar data. Moreover, the utility of multisensor data has been examined for this task. Radar images are being considered as one of the available tools for forest studies; howeve...

The objectives of this effort are to determine the extent to which Doppler radar techniques can be exploited for both qualitative and quantitative nearshore measurement applications. Of particular interest are estimates of surf zone location, extent, surface currents, and wave parameters. To date, optical (video) techniques have been the primary remote sensing technology for these applications....

-We are developing a laser radar (lidar) altimeter that uses commercial off-the-shelf fiber-optic components and traditional RF and digital signal processing techniques to achieve fine-range accuracy despite a low transmit peak power. A 1550-nm operating wavelength was selected so that available erbium-doped fiber amplifiers (EDFAs) could be used to provide optical gain. The transmitted signal,...

The acoustooptic time-and-space integrating approach to real-time synthetic aperture radar (SAR) processing is reviewed, and novel hybrid optical/electronic techniques, which generalize the basic architecture, are described. The generalized architecture is programmable and has the ability to compensate continuously for range migration changes in the parameters of the radar/target geometry and a...

Tunable optical true-time-delay modules based on highly dispersive photonic crystal fibers were demonstrated to provide continuous radio frequency squint-free beam scanning for X-band phased array antenna systems. © 2006 Optical Society of America OCIS codes: (060.2310) Fiber Optics; (280.5110) Phased-Array Radar

Citation Richardson, Jonathan M. et al. “Aerosol elastic scatter signatures in the nearand mid-wave IR spectral regions.” Laser Radar Technology and Applications XIV. Ed. Monte D. Turner & Gary W. Kamerman. Orlando, FL, USA: SPIE, 2009. 73230Q-9. © 2009 SPIE--The International Society for Optical Engineering As Published http://dx.doi.org/10.1117/12.819165 Publisher The International Society fo...

A novel method to generate optical beams using on-chip silicon nanophotonic antenna arrays with engineered phase and amplitude is demonstrated. An 8×8 nanophotonic phased array to generate and manipulate Gaussian beams is shown. ©2013 Optical Society of America OCIS codes: (130.3120) Integrated Optics Devices; (280.5110) Phased-array Radar

The central theme of our programs has been to advance the understanding of optical and quasi-optical communication, radar, and sensing systems. Broadly speaking, this has entailed: 1) developing system-analytic models for important optical propagation, detection, and communication scenarios; 2) using these models to derive the fundamental limits on system performance; and 3) identifying and est...