Title :
Vibration sensitivity of the parametric acoustic receiving array
Author :
Reeves, C. ; Maki, Voldi E. ; Goldsberry, Tommy G. ; Rohde, David F.
Author_Institution :
University of Texas, Austin, TX.
Abstract :
A parametric (nonlinear) receiving array exhibits sensitivity to motion of its transducers in a manner significantly different from that of conventional arrays. An understanding of this sensitivity is necessary for the proper evaluation of the benefits of parametric arrays in many applications of interest. In this paper a theory relating motion of the array transducers to the array output signal is developed, and predictions from the theory are compared with experimental observations on both 5 m and 340 m parametric arrays used for low frequency reception. Several methods of counteracting the detrimental effects of transducer motion are discussed.
Keywords :
Acoustic arrays; Acoustic propagation; Acoustic sensors; Acoustic signal detection; Acoustic transducers; Acoustic waves; Frequency; Phase modulation; Sonar equipment; Vibrations;
Conference_Titel :
Acoustics, Speech, and Signal Processing, IEEE International Conference on ICASSP '78.
DOI :
10.1109/ICASSP.1978.1170528
