Measuring source location in a steadystate waveguide
Abstract
This paper presents a result which implies that a horizontal rather than a vertical array design is best for estimating the source depth in an infinite homogeneous horizontal waveguide. Since a horizontal array configuration is best for estimating the source bearing, the same horizontal array can be processed to estimate depth. The optimal array depth, however, for bearing estimation can be different from the optimal array depth for source depth measurement. In order to present these results, the physics of the received signal must be considered.
 Publication:

NASA STI/Recon Technical Report N
 Pub Date:
 October 1975
 Bibcode:
 1975STIN...7622437H
 Keywords:

 Beam Waveguides;
 Signal Processing;
 Maximum Likelihood Estimates;
 Partial Differential Equations;
 Signal To Noise Ratios;
 Statistical Analysis;
 Communications and Radar