Measuring technique discriminates between jet noise and core noise of jet engine. Results of experimentation confirmed that core noise and jet noise can be separated by examining cross-correlation of far-field microphone signals and that crossover point between core noise and jet noise moves toward higher velocities at higher angles with respect to jet axis.
Acoustical measurement separates core noise and jet noise
NASA Tech Briefs ; 4 , 4
1980-06-01
Miscellaneous
No indication
English
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