Optical System Design ,
Hyperspectral and Multispectral Imaging Systems ,
Focal Plane Arrays ,
Reconnaissance Imaging Systems ,
Missile Seeker Systems ,
Aerospace Engineering
Publications (6)
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The 3rd Generation Goodrich DB-110 system provides users with a three (3) field-of-view high performance Airborne
Reconnaissance capability that incorporates a dual-band day and nighttime imaging sensor, a real time recording and a
real time data transmission capability to support long range, medium range, and short range standoff and over-flight
mission scenarios, all within a single pod. Goodrich developed their 3rd Generation Airborne Reconnaissance Pod for
operation on a range of aircraft types including F-16, F-15, F-18, Euro-fighter and older aircraft such as the F-4, F-111,
Mirage and Tornado. This system upgrades the existing, operationally proven, 2nd generation DB-110 design with
enhancements in sensor resolution, flight envelope and other performance improvements. Goodrich recently flight tested
their 3rd Generation Reconnaissance System on a Block 52 F-16 aircraft with first flight success and excellent results.
This paper presents key highlights of the system and presents imaging results from flight test.
Goodrich's DB-110 Reconnaissance Airborne Pod for TORnado (RAPTOR) and Data Link Ground Station (DLGS) have been used operationally for several years by the Royal Air Force (RAF). A variant of the RAPTOR DB-110 Sensor System is currently being used by the Japan Maritime Self Defense Force (JMSDF). Recently, the DB-110 system was flown on the Predator B Unmanned Aerial Vehicle (UAV), demonstrating the DB-110 system's utility on unmanned reconnaissance aircraft. The DB-110 is a dual-band EO and IR imaging capability for long, medium, and short standoff ranges, including oblique and over-flight imaging, in a single sensor package. The DB-110 system has also proven performance for real-time high bandwidth data link imagery transmission. Goodrich has leveraged this operational experience in building a 3rd Generation DB-110 system including new Reconnaissance Airborne Pod and Ground System, to be first used by the Polish Air Force. This 3rd Generation system maintains all the capability of the current 2nd Generation DB-110 system and adds several new features. The 3rd Generation system upgrades include an increase in resolution via new focal planes, addition of a third ("super-wide") field of view, and new avionics. This paper summarizes the Goodrich DB-110 3rd Generation System in terms of its basic design and capabilities. Recent demonstration of the DB-110 on the Predator B UAV is overviewed including sample imagery.
The Goodrich DB-110 system is discussed in terms of its basic design and concept. An operational platform utilizing the DB-110 system known as the Reconnaissance Airborne Pod for the TORnado (RAPTOR) aircraft is overviewed describing the complete automatic turnkey operation of the system. Dual-band imagery from RAPTOR displays DB-110's imaging capability for long, medium, and short standoff range as well as over-flight mission performance. Additionally, enhancing the resolution and other multi-spectral and Hyper-spectral formats of the DB-110 system are introduced as evidence of future products based on the present DB-110 system.
Davis Lange, Paul Vu, Samuel Wang, Steven Jost, Michael Winn, John Roussis, Robert Cook, Darrel Endres, Gregg Dudoff, Colin Jones, Glenn Kincaid, Jeffery Heath
This paper discusses the design, architecture, and performance of a 6000 element Indium Antimonide Infrared focal plane array. The focal plane array architecture allows for any N x 1000 element sized array to be constructed from its base elements. A uniquely constructed bi-staggered detector geometry is utilized to provide 2:1 over-sampling having 10 micron effective pitch in both the across track and along track directions. Additionally, the detector geometry allows for physical pixel sizes up to 25 microns while sampling at a 10 micron effective pitch to provide alias free imaging with the high signal capture capability of a large pixel. The Indium Antimonide detectors are front-side illuminated P-on-N type mesa diodes having no measurable crosstalk. A complimentary CMOS based Multiplexor in a M x 250 segmented design having up to 10 million electrons full-well output with greater than 14 bits instantaneous dynamic range provides a flexible and low noise readout for the focal plane array. Hybridization of the Indium Antimonide detectors and multiplexor is provided via a Lockheed Martin patented beam-lead technology to provide reliable and producible long linear focal plane arrays for reconnaissance applications. Characterization of the 6000 element Infrared focal plane array is presented including dynamic impedance of the diodes, read-noise, linearity, and non-uniformity. Meadured characteristics of the CMOS multiplexor are also presented in addition to data from the hybridized modules making up the Focal Plane Array.
We used molecular beam epitaxy to codeposit IrSi3 films on p-type Si(111) and Si(100) substrates at elevated temperatures. Seemann-Bohlin x-ray diffraction reveals the formation of IrSi3 at temperatures as low as 450 degree(s)C. We find that the growth of 100 angstroms IrSi3 films on Si(111) and Si(100) substrates is similar to that of 450 angstroms IrSi3 samples. Using low-energy electron diffraction, Bragg-Brentano x-ray, and transmission electron microscope (TEM) diffraction we identify a previously unreported c-axis oriented growth mode for IrSi3 films deposited around 700 degree(s)C on Si(111) substrates. Indexing of TEM diffraction patterns suggests that the lattice constants for IrSi3 in these thin films are the same as values derived for bulk IrSi3 by other researchers. Atomic force microscopy and TEM images show the formation of continuous 100 angstroms IrSi3 films at temperatures as high as 630 degree(s)C on Si(100) substrates and the formation of epitaxial IrSi3 islands for temperatures above 670 degree(s)C on Si(111).
This paper discusses the design of a multispectral radiometer and camera implemented using a CCD imager, two Silicon photodiode radiometers and a rotating filter wheel equipped with six bandpass filters spaced throughout the visible and near-IR spectrum. One of the radiometers has a field-of-view matched to that of the camera to measure integrated scene radiance, whereas the other radiometer functions as a spot radiometer to measure small surface radiances. The system is synchronized with the 60 Hz camera video and transfers the 16-bit digitized data from the two radiometers once every video field through a parallel interface to a video data encoder. The encoder incorporates the data into the current video field for VCR recording and later playback and analysis. The system is designed for airborne use mounted underneath the wing of an aircraft. Its main purpose is to analyze the spectral radiances of various surfaces involved in high-speed videography experiments. The data obtained with the radiometer will be used to refine specifications for a high-speed, high-resolution solid state imager. However, applications extend to any field where fast, spectral measurements are required. A data set obtained for a sample application is presented to illustrate the performance of the system.
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