Methods of Implementation of the Review of the Space of Parametric Profiler

Abstract

Abstract The article presents the results of the theoretical justification of the method for implementing the survey of the parametric profiler. With all the advantages of using nonlinear effects and hydroacoustic systems in a parametric transmitting mode for profiling the bottom and bottom sediments, the disadvantage is the small area of the bottom surface, scanned by the transmitting array of the profiler, which leads to the need to choose the method of scanning and sensing modes of the parametric profiler for a vertical profiling scheme. The analysis of the main methods of scanning, such as scanning in two planes with a phased receiving-transmitting array, the use of several phased arrays that scan by sector and scanning by the movement of the antenna carrier, allowed us to determine the main advantages and disadvantages of each method of viewing. The results of the theoretical study allowed us to evaluate the method of scanning by the movement of the antenna carrier and obtain expressions for the stages of the full scanning cycle, as well as to calculate the values of the follow-up period in the radiation mode for the values of the number of wave periods of the difference frequency of the radiated acoustic signal and the distance from the bottom of the transmitting antenna that are most common in real conditions of profiling bottom structures.