Accession Number:

ADA076929

Title:

Chicago Monostatic Acoustic Vortex Sensing System. Volume I. Data Collection and Reduction.

Descriptive Note:

Final rept. Jan 76-Sep 77,

Corporate Author:

TRANSPORTATION SYSTEMS CENTER CAMBRIDGE MA

Personal Author(s):

• Burnham,D. C.

Report Date:

1979-10-01

Pagination or Media Count:

33.0

Abstract:

A Monostatic Acoustic Vortex Sensing System MAVSS was installed at Chicagos OHare International Airport to measure the strength and decay of aircraft wake vortices from landing aircraft. The MAVSS consists of an array of acoustic antennas which measure the vertical profile up to 60 m altitude of the vertical component of the wind. The decay in wake vortex strength is measured as the vortex passes over successive antennas in the array. Volume I describes the MAVSS principles of operation, the hardware developed, and data reduction methods employed.

Descriptors:

• *ACOUSTIC DETECTION
• *VORTEX SHEDDING
• *AIRCRAFT LANDINGS
• COMMERCIAL AIRCRAFT
• HAZARDS
• FIELD EFFECT TRANSISTORS
• REMOTE DETECTORS
• DATA REDUCTION
• WAKE
• DATA ACQUISITION
• JET TRANSPORT AIRCRAFT
• INTERNATIONAL AIRPORTS
• AIRPORTS
• ELECTROACOUSTIC TRANSDUCERS
• ILLINOIS
• DECAY SCHEMES
• OPERATIONAL AMPLIFIERS

Subject Categories:

• Acoustic Detection and Detectors
• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE