Abstract
In a previous paper [E. C. Shang et al., J. Acoust. Soc. Am. Suppl. 1 74, S78 (1983)], the theoretical framework of the passive harmonic source ranging in waveguides based on the mode filtering technique has been proposed. The main purpose of the present paper is to study the range information loss due to the effects of (1) phase fluctuation and (2) the inaccurate description of the environment (waveguide mismatching) by numerical modeling. The phase fluctuation effect is investigated through a two‐dimensional Gaussian distribution function. The mismatching effect is investigated by using a numerical normal mode Code INRL, 1980). Source range information loss caused by incorrect description of the sediment type of the bottom and the sound velocity profile in the water column are calculated. Examples for a 100‐m water depth shallow water in frequency range of 100–500 Hz are presented. [Work supported by NRC.]
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
