AVIATION SAFETY RESEARCH AND TRANSPORTATION/HAZARD AVOIDANCE AND ELIMINATION

Data collected by the Scanning Laser Doppler Velocimeter System (SLDVS) was analyzed to determine the feasibility of the SLDVS for monitoring aircraft wake vortices in an airport environment. Data were collected on atmospheric vortices and analyzed. Over 1600 landings were monitored at Kennedy International Airport and by the end of the test period 95 percent of the runs with large aircraft were producing usable results in real time. The transport was determined in real time and post analysis using algorithms which performed centroids on the highest amplitude in the thresholded spectrum. Making use of other parameters of the spectrum, vortex flow fields were studied along with the time histories of peak velocities and amplitudes. The post analysis of the data was accomplished with a CDC-6700 computer using several programs developed for LDV data analysis.

  • Corporate Authors:

    Raytheon Company

    528 Boston Post Road, Electro-Optics Department
    Sudbury, MA  USA  01776
  • Authors:
    • Sonnenschein, C
    • Dimarzio, C
    • Clippinger, D
    • Toomey, D
  • Publication Date: 1976-8

Media Info

  • Pagination: 54 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00159192
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: NASA-CR-150208 Final Rpt., ER76-4220
  • Contract Numbers: NAS8-30795
  • Files: TRIS
  • Created Date: Aug 31 1978 12:00AM