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  • 1
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    Remotely piloted aircraft in the civil environment (1977)
    In:  Other Sources
    Details
    Publication Date: 2011-08-17
    Description: Remotely piloted aircraft (RPA's) are of increasing interest to the military and others, as evidenced by a number of technology and development programs that are currently funded or planned. These programs have led to a number of test aircraft with significant capabilities, and future remotely piloted aircraft are forecast to become even more capable as the technology in a number of important subsystem areas is progressing at a rapid rate. As the size, weight and cost of RPA's is reduced, the prospect of using them for civilian applications becomes more likely.
    Keywords: AIRCRAFT DESIGN, TESTING AND PERFORMANCE
    Type: Mechanism and Machine Theory; 12; 1977
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Remotely piloted aircraft in the civil environment (1977)
    In:  Other Sources
    Details
    Publication Date: 2019-04-02
    Description: Improved remotely piloted aircraft (RPAs), i.e., incorporating reductions in size, weight, and cost, are becoming available for civilian applications. Existing RPA programs are described and predicted into the future. Attention is given to the NASA Mini-Sniffer, which will fly to altitudes of more than 20,000 m, sample the atmosphere behind supersonic cruise aircraft, and telemeter the data to ground stations. Design and operating parameters of the aircraft are given, especially the optical sensing systems, and civilian RPA uses are outlined, including airborne research, remote mapping, rescue, message relay, and transportation of need materials. Civil regulatory factors are also dealt with.
    Keywords: AIRCRAFT DESIGN, TESTING AND PERFORMANCE
    Type: Mechanism and Machine Theory; 12; 5, 19; 1977
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Remotely piloted aircraft in the civil environment (1975)
    In:  Other Sources
    Details
    Publication Date: 2016-06-07
    Description: Existing remotely piloted vehicle application programs are described along with the technology of several important subsystems and the potential vehicle uses and operational concepts. Regulatory constraints and present and future study activities that may lead to demonstration and then operational programs are discussed.
    Keywords: MAN/SYSTEM TECHNOLOGY AND LIFE SUPPORT
    Type: JPL The 2nd Conf. on Remotely Manned Systems (RMS); p 47-48
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    Organization and use of a Software/Hardware Avionics Research Program (SHARP) (1975)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: The organization and use is described of the software/hardware avionics research program (SHARP) developed to duplicate the automatic portion of the STOLAND simulator system, on a general-purpose computer system (i.e., IBM 360). The program's uses are: (1) to conduct comparative evaluation studies of current and proposed airborne and ground system concepts via single run or Monte Carlo simulation techniques, and (2) to provide a software tool for efficient algorithm evaluation and development for the STOLAND avionics computer.
    Keywords: AIRCRAFT COMMUNICATIONS AND NAVIGATION
    Type: NASA-CR-137676
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 5
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    Real-time simulation of an airborne radar for overwater approaches (1982)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: Software developed to provide a real time simulation of an airborne radar for overwater approaches to oil rig platforms is documented. The simulation is used to study advanced concepts for enhancement of airborne radar approaches (ARA) in order to reduce crew workload, improve approach tracking precision, and reduce weather minimums. ARA's are currently used for offshore helicopter operations to and from oil rigs.
    Keywords: AIRCRAFT COMMUNICATIONS AND NAVIGATION
    Type: NASA-CR-166293 , NAS 1.26:166293
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 6
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    Civil mini-RPA's for the 1980's: Avionics design considerations (1975)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: A number of remote sensing or surveillance tasks (e.g., fire fighting, crop monitoring) in the civilian sector of our society may be performed in a cost effective manner by use of small remotely piloted aircraft (RPA). This study was conducted to determine equipment (and the associated technology) that is available, and that could be applied to the mini-RPA and to examine the potential applications of the mini-RPA with special emphasis on the wild fire surveillance mission. The operational considerations of using the mini-RPA as affected by government regulatory agencies were investigated. These led to equipment requirements (e.g., infra-red sensors) over and above those for the performance of the mission. A computer technology survey and forecast was performed. Key subsystems were identified, and a distributed microcomputer configuration, that was functionally modular, was recommended. Areas for further NASA research and development activity were also identified.
    Keywords: AIRCRAFT INSTRUMENTATION
    Type: NASA-CR-137679
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 7
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    Maximization of the region of exponential absolute stability. (1972)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: The problem of selecting a regulator vector which yields the largest estimate of the region of exponential absolute stability is considered. Reformulation of an extended version of the Popov frequency condition in terms of a nonnegative polynomial gives the desired algorithm in mathematical programming format.
    Keywords: ELECTRONICS
    Type: Asilomar Conference on Circuits and Systems; Nov 08, 1971 - Nov 10, 1971; Pacific Grove, CA
    Format: text
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    NASA TECHNICAL REPORTS
  • 8
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    Information processing requirements for on-board monitoring of automatic landing (1977)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: A systematic procedure is presented for determining the information processing requirements for on-board monitoring of automatic landing systems. The monitoring system detects landing anomalies through use of appropriate statistical tests. The time-to-correct aircraft perturbations is determined from covariance analyses using a sequence of suitable aircraft/autoland/pilot models. The covariance results are used to establish landing safety and a fault recovery operating envelope via an event outcome tree. This procedure is demonstrated with examples using the NASA Terminal Configured Vehicle (B-737 aircraft). The procedure can also be used to define decision height, assess monitoring implementation requirements, and evaluate alternate autoland configurations.
    Keywords: AIRCRAFT COMMUNICATIONS AND NAVIGATION
    Type: AIAA PAPER 77-1093 , Guidance and Control Conference; Aug 08, 1977 - Aug 10, 1977; Hollywood, FL
    Format: text
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    NASA TECHNICAL REPORTS
  • 9
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    Generalisation of parameter methods and D decomposition (1970)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: Parameter methods generalization and D decomposition, using function minimization methods
    Keywords: ELECTRONICS
    Type: ; VIGATION (
    Format: text
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    NASA TECHNICAL REPORTS
  • 10
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    Stability analysis of systems with time delay (1970)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: Computerized Pontryagin stability analysis of nonlinear multiple delay systems
    Keywords: ELECTRONICS
    Type: ; ADEMIE DES SCIENCES
    Format: text
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    NASA TECHNICAL REPORTS
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