Teledyne Brown Engineering Research Articles

DATA PROCESSING FOR THE SPACE-BASED DESIS HYPERSPECTRAL SENSOR

Abstract. The German Aerospace Center (DLR) and Teledyne Brown Engineering (TBE) have established a collaboration to develop and operate a new space-based hyperspectral sensor, the DLR Earth Sensing Imaging Spectrometer (DESIS). DESIS will provide spacebased hyperspectral data in the VNIR with high spectral resolution and near-global coverage. While TBE provides the platform and infrastructure for operation of the DESIS instrument on the International Space Station, DLR is responsible for providing the instrument and the processing software. The DESIS instrument is equipped with novel characteristics for an imaging spectrometer such high spectral resolution (2.55 nm), a mirror pointing unit or a CMOS sensor operated in rolling shutter mode. We present here an overview of the DESIS instrument and its processing chain, emphasizing the effect of the novel characteristics of DESIS in the data processing and final data products. Furthermore, we analyse in more detail the effect of the rolling shutter on the DESIS data and possible mitigation/correction strategies.

THE NEW HYPERSPECTRAL SENSOR DESIS ON THE MULTI-PAYLOAD PLATFORM MUSES INSTALLED ON THE ISS

The new hyperspectral instrument DLR Earth Sensing Imaging Spectrometer (DESIS) will be developed and integrated in the Multi-User-System for Earth Sensing (MUSES) platform installed on the International Space Station (ISS). The DESIS instrument will be launched to the ISS mid of 2017 and robotically installed in one of the four slots of the MUSES platform. After a four month commissioning phase the operational phase will last at least until 2020. The MUSES / DESIS system will be commanded and operated by the publically traded company TBE (Teledyne Brown Engineering), which initiated the whole program. TBE provides the MUSES platform and the German Aerospace Center (DLR) develops the instrument DESIS and establishes a Ground Segment for processing, archiving, delivering and calibration of the image data mainly used for scientific and humanitarian applications. Well calibrated and harmonized products will be generated together with the Ground Segment established at Teledyne. The article describes the Space Segment consisting of the MUSES platform and the instrument DESIS as well as the activities at the two (synchronized) Ground Segments consisting of the processing methods, product generation, data calibration and product validation. Finally comments to the data policy are given.

THE NEW HYPERSPECTRAL SENSOR DESIS ON THE MULTI-PAYLOAD PLATFORM MUSES INSTALLED ON THE ISS

Abstract. The new hyperspectral instrument DLR Earth Sensing Imaging Spectrometer (DESIS) will be developed and integrated in the Multi-User-System for Earth Sensing (MUSES) platform installed on the International Space Station (ISS). The DESIS instrument will be launched to the ISS mid of 2017 and robotically installed in one of the four slots of the MUSES platform. After a four month commissioning phase the operational phase will last at least until 2020. The MUSES / DESIS system will be commanded and operated by the publically traded company TBE (Teledyne Brown Engineering), which initiated the whole program. TBE provides the MUSES platform and the German Aerospace Center (DLR) develops the instrument DESIS and establishes a Ground Segment for processing, archiving, delivering and calibration of the image data mainly used for scientific and humanitarian applications. Well calibrated and harmonized products will be generated together with the Ground Segment established at Teledyne. The article describes the Space Segment consisting of the MUSES platform and the instrument DESIS as well as the activities at the two (synchronized) Ground Segments consisting of the processing methods, product generation, data calibration and product validation. Finally comments to the data policy are given.

Statistical Modeling of Combat Mortality Events by Using Subject Matter Expert Opinions and Operation Iraqi Freedom Empirical Results from the Navy-Marine Corps Combat Trauma Registry

In 12 Navy—Marine Corps medical logistics studies and analyses conducted by the Naval Health Research Center (NHRC) and Teledyne Brown Engineering (TBE) over the past 5 years, estimates of battlefield mortality have been a major metric of interest to medical planners. An ongoing concern is how mortality is related to delays in treatment for medical logistics reasons. In this paper, we describe how NHRC and TBE have been developing a statistically based model for mortality since 2003, first starting with panel results from a group of military medical doctors and continuing here with an analysis of empirical injury data from Operation Iraqi Freedom (OIF). The panel results and statistical analysis of life-threatening injury data in OIF from early 2004 to mid-2006 indicate that the Weibull distribution describes the timing of high risk of mortality events in a reasonable manner within surgical medical treatment facilities. The quest for a best-fitting probability distribution with parameters dependent on the casualty flow chain of treatment and evacuation in the theater is ongoing. In reality, combining analytical and subject matter expert (SME) results to model mortality is necessary given the breadth of theater medical delivery systems and general paucity of adequate empirical data in many of the segments of patient flow.

Design of a solid optical interconnect for massive neural networks: [formula omitted] Teledyne Brown Engineering, Mail Stop 19, Cummings Research Park, Huntsville, AL 35807 USA

Design of a solid optical interconnect for massive neural networks: [formula omitted] Teledyne Brown Engineering, Mail Stop 19, Cummings Research Park, Huntsville, AL 35807 USA

Ada information hiding—additional notes

article Free Access Share on Ada information hiding—additional notes Author: D R Clarson Teledyne Brown Engineering, 788 Shrewsbury Avenue, Tinton Falls, NJ Teledyne Brown Engineering, 788 Shrewsbury Avenue, Tinton Falls, NJView Profile Authors Info & Claims ACM SIGAda Ada LettersVolume VIIIssue 1Jan./Feb. 1987 pp 89–93https://doi.org/10.1145/24611.24617Online:01 January 1987Publication History 0citation108DownloadsMetricsTotal Citations0Total Downloads108Last 12 Months1Last 6 weeks0 Get Citation AlertsNew Citation Alert added!This alert has been successfully added and will be sent to:You will be notified whenever a record that you have chosen has been cited.To manage your alert preferences, click on the button below.Manage my AlertsNew Citation Alert!Please log in to your account Save to BinderSave to BinderCreate a New BinderNameCancelCreateExport CitationPublisher SiteeReaderPDF

The Use of Cluster Analysis in the Assessment of Spills of Hazardous Materials

The macrobenthic community of Clinch River, near Carbo, Virginia, has twice been subjected to acute stress caused by major industrial spills from a power plant. The first spill, which resulted in a high pH shock, was from a fly-ash retaining pond in 1967. The second was an acid spill in 1970 with consequent low pH shock. Stream surveys were made in 1969, 1970 and 1971. This paper reports the results of Q-mode cluster analysis of presence-absence data on the total aquatic insect fauna, several orders of insects considered separately, and Gastropoda from those surveys. Recovery from the effects of the fly-ash spill by all elements of the fauna studied except the Gastropoda was well under way by the summer of 1969. Nevertheless, the insect fauna in samples from the area affected by the spill was still different from that in unpolluted reaches of the stream, although it was not possible to discriminate between remnant effects of the spills and chronic stress due to the day-to-day operation of the power plant, The spill of acid in 1970 eliminated many elements of the fauna from about 30 km of the river. Again, by the end of the summer recovery was well under way for all groups except the Gastropoda. Cluster analysis was particularly useful in determining the effects of type of substrate, time of sampling, longitudinal succession, and flooding on the composition of the macrobenthic community. It is suggested that one effect of flooding may be to make the fauna more homogeneous so there is a more nearly equal distribution of macrobenthic organisms among the stations from which samples were collected. INTRODUCTION Since 1967, the Clinch River in southwestern Virginia has been subjected to two major industrial spills and several episodes of flooding that have had serious deleterious effects on the fish population and on the community of macrobenthic invertebrates (Table 1). These spills and floods and their effects on density and diversity of the aquatic community have been discussed previously (Cairns et al., 1971; Cairns et al., 1972; Crossman et al., 1973). The paper by Crossman et al. also presented cluster analysis of some of the data on aquatic insects. The purpose of this presentation is to make more extensive use of I Present address: Teledyne Brown Engineering, Huntsville, Alabama. 2 Work was done while author was Visiting Professor in Department of Biology, Virginia Polytechnic Institute and State University, Blacksburg 24061.