The Experimental Determination of Atmospheric Absorption from Aircraft Acoustic Flight Tests |
Contents
SUMMARY | 1 |
TEST PROCEDURES AND INSTRUMENTATION | 10 |
Errors in Meteorological Measurements | 20 |
1 other sections not shown
Common terms and phrases
1/3-OCT FREQ BAND 1/3-OCTAVE FREQUENCY BAND 115 DEGREES SOLID 24 26 PREFERRED 26 PREFERRED 1/3-OCTAVE 35 SOLID LINE 85 DEGREES 866 Absorption Coefficients accuracy acoustic data acoustic flight test acoustic tests airplane altitude analysis ARP 866 Absorption atmospheric absorption coefficients BAND NUMBER Figure calculated climb angle Coefficients for Test Composite Plots computed Condition 12 DEGREES 105 DEGREES DEGREES 25 DEGREES 30 DEGREES SOLID LINE DIRECTIVITY ANGLE DEG distance dynamic range effects Experimental and ARP flightpath FREQ BAND 75 FREQUENCY BAND NUMBER gradients Grant County Airport LINE IS MEAN meteorological measurements microphone grid Microphone height Microphones for Test Moses Lake NASA noise floor number of microphones October 22 overhead Plot of Differences PREFERRED 1/3-OCTAVE FREQUENCY radar radiosonde regression line relative humidity runway series 15 sideline microphones slope stadimetric camera Summary Plot surface temperature and humidity Test Condition test series wind speeds ما ها