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Book Wind Shear Detection Technology

    Book Details:
  • Author : United States. Congress. House. Committee on Science and Technology. Subcommittee on Transportation, Aviation, and Materials
  • Publisher :
  • Release : 1984
  • ISBN :
  • Pages : 148 pages

Download or read book Wind Shear Detection Technology written by United States. Congress. House. Committee on Science and Technology. Subcommittee on Transportation, Aviation, and Materials and published by . This book was released on 1984 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Wind Shear Detection  Forward looking Sensor Technology

Download or read book Wind Shear Detection Forward looking Sensor Technology written by and published by . This book was released on 1987 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Wind Shear Detection Technology

    Book Details:
  • Author : United States. Congress. House. Committee on Science and Technology. Subcommittee on Transportation, Aviation, and Materials
  • Publisher :
  • Release : 1984
  • ISBN :
  • Pages : 0 pages

Download or read book Wind Shear Detection Technology written by United States. Congress. House. Committee on Science and Technology. Subcommittee on Transportation, Aviation, and Materials and published by . This book was released on 1984 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Test and evaluation of the airport radar wind shear detection system

Download or read book Test and evaluation of the airport radar wind shear detection system written by and published by . This book was released on 1982 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt: A wind shear detection system, developed by the Wave Propagation Laboratory (WPL) to operate with the Federal Aviation Administration (FAA) Airport Surveillance Radar ASR-(8), was installed and tested at the FAA Technical Center. Initial tests consisted of hardware and software shakedown and feasibility determinations. Second phase tests compared radar with aircraft and tower winds, evaluated the wind shear measurement capability under various weather conditions, and investigated the effectiveness of a simple two-azimuth pointing strategy. Final efforts consisted of observations in all-weather regimes and tests of a modified velocity-azimuth display (VAD) and a glide slope scan. Results showed the system to be compatible with and to operate satisfactorily with the ASR-8. The processing and spectral display of clear air and precipitation returns is feasible. The accuracy of agreement between radar-measured winds and components of the aircraft-measured winds in both radially oriented flights and runway offset flights using a two-azimuth pointing technique, a glide slope scan, and a modified VAD was examined. Radar versus tower wind agreement was also examined. Potentially dangerous wind shears associated with weather during these tests were detectable. Certain system limitations were also defined and considered. (Author).

Book A Study of the Methodology of Low Altitude Wind Shear Detection with Special Emphasis on the Low Level Wind Shear Alert System Concept

Download or read book A Study of the Methodology of Low Altitude Wind Shear Detection with Special Emphasis on the Low Level Wind Shear Alert System Concept written by F. W Wilson (Jr) and published by . This book was released on 1986 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: This basic principles study of the Low Level Wind Shear Alert System (LLWAS) addresses the question of the degree to which a change of algorithm and network geometry can improve the performance of an anemometer-based wind shear detection system to an acceptable level. The performance of the current system seems to be deficient in that it is ineffective for the detection of microburst and tha it issues many alarms in situations where pilots do not experience hazardous wind shear. The theoretical basis for this investigation is simulation testing. This process involves testing each combination of algorithm and geometry against a realistic mathematiclly generated weather model that includes wind shear events. The binary time series of (event/no event) and (detection/no detection) are computed and the systems that exhibit the best skill are determined. The systems that have the best skills have high probabilities of detection and low probabilities of false alarms. Keywords: Wind Field Divergence; Gust Front; Simulation Testing; Probability of Detection; False Alarm Ratio; Total Skill Score.

Book Low Altitude Wind Shear and Its Hazard to Aviation

Download or read book Low Altitude Wind Shear and Its Hazard to Aviation written by Committee on Low-Altitude Wind Shear and Its Hazard to Aviation and published by . This book was released on 1983 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book An Airport Wind Shear Detection and Warning System Using Doppler Radar

Download or read book An Airport Wind Shear Detection and Warning System Using Doppler Radar written by John McCarthy and published by . This book was released on 1981 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: A feasibility study was conducted to determine whether ground based Doppler radar could measure the wind along the path of an approaching aircraft with sufficient accuracy to predict aircraft performance. Forty-three PAR approaches were conducted, with 16 examined in detail. In each, Doppler derived longitudinal winds were compared to aircraft measured winds; in approximately 75 percent of the cases, the Doppler and aircraft winds were in acceptable agreement. In the remaining cases, errors may have been due to a lack of Doppler resolution, a lack of co-location of the two sampling volumes, the presence of eddy or vortex like disturbances within the pulse volume, or the presence of point targets in antenna side lobes. It was further concluded that shrouding techniques would have reduced the side lobe problem. A ground based Doppler radar operating in the optically clear air, provides the appropriate longitudinal winds along an aircraft's intended flight path. (NTRL site)

Book Engineering and Development Program Plan   Wind Shear

Download or read book Engineering and Development Program Plan Wind Shear written by United States. Federal Aviation Administration. Systems Research and Development Service and published by . This book was released on 1977 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: