SERT 2 control center

Control center with integrated computer for real time processing and display of information from SERT 2 spacecraf

Signal-to-noise ratio of Gaussian-state ghost imaging

The signal-to-noise ratios (SNRs) of three Gaussian-state ghost imaging configurations--distinguished by the nature of their light sources--are derived. Two use classical-state light, specifically a joint signal-reference field state that has either the maximum phase-insensitive or the maximum phase-sensitive cross correlation consistent with having a proper $P$ representation. The third uses nonclassical light, in particular an entangled signal-reference field state with the maximum phase-sensitive cross correlation permitted by quantum mechanics. Analytic SNR expressions are developed for the near-field and far-field regimes, within which simple asymptotic approximations are presented for low-brightness and high-brightness sources. A high-brightness thermal-state (classical phase-insensitive state) source will typically achieve a higher SNR than a biphoton-state (low-brightness, low-flux limit of the entangled-state) source, when all other system parameters are equal for the two systems. With high efficiency photon-number resolving detectors, a low-brightness, high-flux entangled-state source may achieve a higher SNR than that obtained with a high-brightness thermal-state source.Comment: 12 pages, 4 figures. This version incorporates additional references and a new analysis of the nonclassical case that, for the first time, includes the complete transition to the classical signal-to-noise ratio asymptote at high source brightnes

Processing and Transmission of Information

Contains reports on two research projects.Lincoln Laboratory, Purchase Order DDL-B158Department of the ArmyDepartment of the NavyDepartment of the Air Force under Contract AF 19(122)-45

JALBTCX Coastal Mapping for the USACE

The Joint Airborne Lidar Bathymetry Technical Center of Expertise (JALBTCX) provides spatial data to support the U.S. Army Corps of Engineers (USACE) National Coastal Mapping Program (NCMP) and hurricane damage evaluation and response. The NCMP was designed to provide topographic and bathymetric elevation data with accompanying digital, geo-referenced imagery to USACE District engineers and scientists. The data support monitoring and maintenance of federal navigation and shore protection projects, and regional sediment management. The main source of these data is the CHARTS system, which is owned by the U.S. Naval Oceanographic Office and operated through the JALBTCX. The NCMP leverages other federal entities’ funding, equipment, and mapping programs to efficiently provide these data to the USACE, and avoid duplication of coastal mapping initiatives.El “Joint Airborne Lidar Bathymetry Technical Center of Expertise" (JALBTCX) (Centro Técnico de Pericia Conjunta de Batimetrla por Lidar Aerotransportado) proporciona datos espaciales para apoyar el Programa Cartogrâflco Costero Nacional (NCMP) del Cuerpo de Ingenieros del Ejército de EE.UU. (USACE) y para efectuar una evaluaciôn y dar una respuesta a los dahos ocasionados por los huracanes. El NCMP fue creado para proporcionar datos de elevaciones topogrâficas y batimétricas acompahados de imâgenes geo-referenciadas digitales a los ingenieros y cientlficos del Distrito USACE. Los datos apoyan la gestion y el mantenimiento de los proyectos de navegaciôn federal y de protecciôn de la costa, y la administraciôn de los sedimentos a nivel regional. La fuente principal de estos datos es el sistema CHARTS, que es propiedad del Servicio Oceanogrâfico de la Marina de EE.UU. y que esta manejado a través del JALBTCX. El NCMP tiene influencia en la financiaciôn de otras entidades federates, de equipo y programas de cartografia, para proporcionar eficazmente estos datos al USACE, y evitar una duplicaciôn de iniciativas cartogrâficas costeras.Le JALBTCX (Joint Airborne Lidar Bathymetry Technical Center of Expertise ou « Centre expert technique mixte de bathymétrie Lidar aéroportée ») fournit des données spatiales à l ’appui du NCPM (National Coastal Mapping Program ou « Programme national de cartographie côtière ») de l ’USACE (Army Corps of Engineers des USA) ainsi que pour l’évaluation des dommages provoqués par les ouragans et des réponses devant être apportées. Le NCMP est conçu pour fournir des données sur les élévations topographiques et bathymétriques ainsi que sur l'imagerie numérique géoréférencée; ces données sont destinées aux ingénieurs et scientifiques du District USACE. Ces informations contribuent à la supervision et à l ’actualisation des projets en matière de navigation fédérale et de protection du littoral, ainsi qu'à la gestion régionale des sédiments. La principale source de données est le système CHARTS qui appartient à I’ « U.S. Naval Oceanographic Office » et qui est exploité par l'intermédiaire du JALBTCX. Le NCMP influence d'autres organismes fédéraux du point de vue du financement, des équipements, et des programmes de cartographie afin de fournir avec efficacité ces données à USACE, et pour éviter la duplication des initiatives en matière de cartographie côtière

Assessment of Coastal Morphological Change

Source: ICHE Conference Archive - https://mdi-de.baw.de/icheArchiv

Processing and Transmission of Information

Contains research objectives.Lincoln Laboratory, Purchase Order DDL B-00306U. S. ArmyU. S. NavyU. S. Air Force under Air Force Contract AFI 9(604)-520

Resume of John McReynolds Wozencraft, 1969

Naval Postgraduate School Faculty Resum

List Decoding of Matrix-Product Codes from nested codes: an application to Quasi-Cyclic codes

A list decoding algorithm for matrix-product codes is provided when $C_1,..., C_s$ are nested linear codes and $A$ is a non-singular by columns matrix. We estimate the probability of getting more than one codeword as output when the constituent codes are Reed-Solomon codes. We extend this list decoding algorithm for matrix-product codes with polynomial units, which are quasi-cyclic codes. Furthermore, it allows us to consider unique decoding for matrix-product codes with polynomial units