2012 IEEE Aerospace Conference最新文献

{"title":"Aquarius/SAC-D: An international remote sensing mission to measure Sea surface salinity","authors":"A. Sen","doi":"10.1109/AERO.2012.6187021","DOIUrl":"https://doi.org/10.1109/AERO.2012.6187021","url":null,"abstract":"International Sea surface salinity mission, SSS, global water cycle, microwave remote sensing, projects, climate studies, Aquarius/SAC-D, Observatory, spacecraft and instrument testing, performance, launch, NASA, CONAE, ASI, CNES, CSA, AEB (INPE-LIT), INVAP.","PeriodicalId":6421,"journal":{"name":"2012 IEEE Aerospace Conference","volume":"424 1","pages":"1-12"},"PeriodicalIF":0.0,"publicationDate":"2012-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79546242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preparing for the first Medipix detectors in space","authors":"L. Pinsky, Anton Empl, S. Hoang, N. Stoffle, J. Jakubek, Z. Vykydal, D. Turecek, S. Pospíšil, Hisashi Kitamura, Ondrej Ploc, Y. Uchihori, Y. Nakahiro, Clif Amberboy, Jessica Hauss, Kerry Lee, E. Semones, N. Zapp, Rebecca Parker, David Cooke","doi":"10.1109/AERO.2012.6187011","DOIUrl":"https://doi.org/10.1109/AERO.2012.6187011","url":null,"abstract":"Current plans call for two separate missions to deploy Medipix2-Technology-based detectors in space for the first time. NASA is planning to deploy 5 or more Radiation Environment Monitor (REM) units, each of which will contain a Medipix2 TimePix-based detector assembly, on the International Space Station (ISS) during the spring of 2012 as part of a Station Detailed Test Objective (SDTO). These units will be mounted on a single 8-layer printed circuit board containing a USB-based interface. The entire unit will have the form of a typical USB flash-memory device, and the USB interface will provide interactive control and data readout as well as the operating power. Each of the units will be separately plugged into one of the 21 Lenovo® T-61B laptops that are currently onboard the ISS. The purpose of this test is to acquire initial on-orbit data to allow feedback into the design of the next generation of Medipix device, which is intended to support the development of a portable, standalone, wireless and battery-powered personal space radiation dosimeter. The second mission, LUCID (Langton Ultimate Cosmic ray Intensity Detector) is part of a UK outreach project being conducted by the Simon Langton School for Boys in Canterbury, UK. A small instrument containing 5 detector assemblies, also containing the TimePix versions of the Medipix2 technology will be deployed on the upcoming UK TechDemoSat 1 mission, also planned for launch in 2012. These deployments have many similar embedded control software and ground-based analysis software requirements.","PeriodicalId":6421,"journal":{"name":"2012 IEEE Aerospace Conference","volume":"83 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2012-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81077867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Update on Dependable Multiprocessor CubeSat technology development","authors":"J. Samson","doi":"10.1109/AERO.2012.6187238","DOIUrl":"https://doi.org/10.1109/AERO.2012.6187238","url":null,"abstract":"Since September 2010, when the Army SERB (Space Experiments Review Board) recommended the Dependable Multiprocessor (DM) CubeSat SERB project be merged with SMDC High Power Nano-Satellite SERB project to proceed as the SMDC TechSat project, the ongoing Honeywell DM project has supported the integrated SMDC TechSat effort. This effort included participation in the successful PDR in May 2011, participation in the successful Flat-Sat Demo in September 2011, and key risk and potential cost reduction efforts including refining the DM payload design to fit the space available in the SMDC TechSat, defining the DM/SMDC TechSat spacecraft interfaces, supporting 3D modeling of the SMDC CubeSat, and the development of the DM CubeSat Testbed, which was the basis for the DM portion of the SMDC TechSat Flat-Sat Demo. The paper includes a brief overview of DM technology and focuses on the DM CubeSat Testbed and its application in the SMDC TechSat Flat-Sat Demo.","PeriodicalId":6421,"journal":{"name":"2012 IEEE Aerospace Conference","volume":"22 1","pages":"1-12"},"PeriodicalIF":0.0,"publicationDate":"2012-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86164095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Submillimeter wave spectrometry for in-situ planetary science","authors":"B. Drouin, K. Cooper, R. Dengler, M. Chavez, W. Chun, T. Crawford","doi":"10.1109/AERO.2012.6187067","DOIUrl":"https://doi.org/10.1109/AERO.2012.6187067","url":null,"abstract":"Absorption and emission of gases in the submillimeter wavelengths is currently exploited for laboratory spectroscopy as well as remote astronomy and limb sounding. We are developing a field-ready submillimeter spectrometer that will enable in-situ sensing with a goal for characterization of biogenic gases and life tracers. Progress toward a field-ready instrument includes: the development of a brass board THz transceiver module; the development of the brass board RF/IF subsystem; an embedded computer and runtime software. Science experiments, including the study of laboratory simulations of Titan, will be performed while the final field instrument components are developed.","PeriodicalId":6421,"journal":{"name":"2012 IEEE Aerospace Conference","volume":"452 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2012-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86182911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Time management in test and flight operations: Accessing and analyzing time discontinued data","authors":"R. Popescu, J. Moffatt","doi":"10.1109/AERO.2012.6187393","DOIUrl":"https://doi.org/10.1109/AERO.2012.6187393","url":null,"abstract":"Viewed under most circumstances, linear and continuous time information is needed to characterize data and perform data analysis. When time information is non-sequential, non-linear, or outright missing from a dataset, one has a difficult time recreating the original experiment's conditions necessary to analyze and interpret science or engineering data. The reasons for time discontinuities in stored data cannot be realistically overcome. During Integration and Testing (I&T), time information is naturally fragmented by the different test configurations making it difficult at times to coordinate test simulation with wall clock time; moreover, anomalies affect both pre and post launch time information data resulting in datasets with similar timestamps, often referenced to a common basetime epoch to which a processor regresses to by default. As a result, timestamp data collected on board can jump time spans unrealistically, or be missing completely from several packet production cycles. To cope with time discontinuities in the collected data, the question becomes how one can closely recreate the respective event's continuous timeline so that the data can be interpreted with the highest accuracy possible. We present several work example cases and solutions, with their advantages and disadvantages, based on the knowledge acquired with the LASP Mission Operations and Data Systems Group (MO&DS). We define the several contexts presented given the different types of spacecraft, payloads, and systems used. We also discuss database and data processing software management constraints as applied to time data information management relevant to space operations and telemetry data storage - an effort that can be overlooked during proposal phases of a mission. Finally, we propose an approach to a time data continuity management standard for space operations I&T and Flight conditions. The goal is to outline the minimum requirements baseline for a time information data management standard that would significantly reduce the effort to manage time discontinuities. The overall discussion and solutions consider several current models and tools, such as the SPICE Toolkit, developed by the Navigation and Ancillary Information Facility (NAIF) at NASA's JPL, and used for mission planning as well as ancillary and time information data management. We also consider, in the end, the likely inevitable human in the loop with the related implications, when it comes to the complexity of time information management.","PeriodicalId":6421,"journal":{"name":"2012 IEEE Aerospace Conference","volume":"31 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2012-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73298377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Data link requirements analysis and benefits of a surface trajectory-based operation","authors":"C. Wargo, P. Hurley","doi":"10.1109/AERO.2012.6187149","DOIUrl":"https://doi.org/10.1109/AERO.2012.6187149","url":null,"abstract":"One of the envisioned improvements for achieving the goals of the Next Generation (NextGen) Air Transport Systems is based upon the use of a managed surface trajectory-based operation (STBO) for the high density airports. The STBO concept uses a time-metered conflict free taxi route that is optimized to improve capacity based upon real-time events occurring at the airport and in terminal area. The improvement is accomplished by modeling the real-time events that cause congestion in use of ramp, taxi and runway resources. The optimized taxi route is dependent upon the state of these real-time events. The use of a data link between the ground-based air traffic management automation's decision support tools (DSTs) and the aircraft avionics will be crucial to the sharing of the optimized taxi route. We present the STBO benefit results for a full approach derived from modeling the STBO approach using trial data. The approach taken to link the ground-based DSTs to improvements in cockpit avionics will set the practical limits expected for operation efficiency. The requirements for the STBO use of data link are more than just the parameters of the communication channel. For our study we have used trial results to forecast the benefits of the time-metered surface trajectory. We then assess the requirements placed upon the data link and develop a set of options in the procedures to transfer the route into the cockpit avionics. We also review the approach being taken by standards for the in-air use of data link for trajectory operations and assess the acceptability of using a similar approach for STBO. The importance of linking the Communications, Navigation, and Surveillance (CNS) to the airport and aircraft capabilities to perform time-metered operations is highlighted as being the key aspect of the pilot's ability to perform STBO surface navigation.","PeriodicalId":6421,"journal":{"name":"2012 IEEE Aerospace Conference","volume":"16 1","pages":"1-10"},"PeriodicalIF":0.0,"publicationDate":"2012-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73312250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"All subsystems are not created equal: Alternative scheduling approaches for spacecraft subsystem development","authors":"D. E. Barlow, C. Battista","doi":"10.1109/AERO.2012.6187412","DOIUrl":"https://doi.org/10.1109/AERO.2012.6187412","url":null,"abstract":"The NASA civilian space environment has changed dramatically in the last 50 years. The current environment has led to a “cost paradox” patterned by low initial cost estimates and a recent history of cost and schedule overruns. While we may not readily be able to change the current NASA environment, evaluation and selection of alternative approaches to scheduling in the application of the NASA project execution methodology can improve spacecraft delivery schedule performance and contribute to significant cost savings.","PeriodicalId":6421,"journal":{"name":"2012 IEEE Aerospace Conference","volume":"82 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2012-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88212303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"MAVEN relay operations concept","authors":"N. Chamberlain, R. Gladden, K. Bruvold","doi":"10.1109/AERO.2012.6187114","DOIUrl":"https://doi.org/10.1109/AERO.2012.6187114","url":null,"abstract":"The Mars Atmosphere and Volatile EvolutioN (MAVEN) mission will launch in late 2013 and, following a 10 month cruise to Mars, will study the upper atmosphere of the planet. In addition to the science instruments, the MAVEN spacecraft is equipped with an Electra UHF transceiver to support relay communication with landed assets. This paper describes how UHF relay service is provisioned by MAVEN. The discussion includes a description of the Electra payload, the process by which relay activities are coordinated and accounted for, the process of a typical relay session, including uplink and downlink, as well as special commands to calibrate and verify relay performance. The operational processes for providing these services are inherited largely from prior Mars missions and take advantage of existing infrastructure and lessons learned from those missions. Preliminary data volume return capabilities using adaptive data rates and low-density parity check channel coding are presented.","PeriodicalId":6421,"journal":{"name":"2012 IEEE Aerospace Conference","volume":"9 1","pages":"1-11"},"PeriodicalIF":0.0,"publicationDate":"2012-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88605642","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tracking with MIMO radar: A baseline solution","authors":"R. A. Coogle, J. D. Glass, L. D. Smith, W. Blair","doi":"10.1109/AERO.2012.6187190","DOIUrl":"https://doi.org/10.1109/AERO.2012.6187190","url":null,"abstract":"This paper describes a baseline target tracking system implemented using the GTRI/ONR Multiple-Input Multiple-Output (MIMO) Radar Benchmark platform. MIMO radar systems have been garnering a significant amount of attention for their potential to improve overall radar performance in comparison to existing systems. While there is much in the current literature regarding the performance and parameter design of MIMO radar target tracking systems, there is little that describes a complete target tracking solution. Such a solution would integrate measurement processing, data assignment, and track filtering into a single unit. The “MIMO tracker” described in this paper aims to provide a starting point for such tracking solutions. Although naive in some respects, this MIMO tracker provides a comparison tool for new MIMO target tracking algorithms. The results of running the tracker with the scenarios provided in the GTRI/ONR MIMO Radar Benchmark are also presented.","PeriodicalId":6421,"journal":{"name":"2012 IEEE Aerospace Conference","volume":"77 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2012-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77295777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High performance, high volume reconfigurable processor architecture","authors":"P. Murray, T. Randolph, D. Van Buren, D. Anderson, I. Troxel","doi":"10.1109/AERO.2012.6187234","DOIUrl":"https://doi.org/10.1109/AERO.2012.6187234","url":null,"abstract":"In support of next-generation satellite communication systems and other payload processing capabilities, SEAKR Engineering is developing a flexible, high-performance modem architecture that has reconfigurable processing resources at its core. This paper outlines the architecture design and major technological achievements required to support dynamic operational environments with an eye on supporting high volume manufacturing programs. The design of the flexible modem and its capability to dynamically reconfigure to accommodate processing load and failures will be featured.","PeriodicalId":6421,"journal":{"name":"2012 IEEE Aerospace Conference","volume":"1023 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2012-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77626311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}