Article

Article title REMOTE MEASURMENTS OF THE DIRECTION OF PROPAGATION AND EXTENTS OF ANISOTROPY OF MARINE EXCITEMENT IN THE DECAMETER RADIO FREQUENCY BAND
Authors V.T. Lobach
Section SECTION I. METHODS IMAGE AND SIGNAL PROCESSING
Month, Year 11, 2013 @en
Index UDC 621.311.6
DOI
Abstract Perspective direction of not contact research of parameters of a water table is the active radiolocation from a bort side of the aircraft (AC). Radar aids of a decameter wavelength range allow to decide the broad class-room of problems. Within the framework of an over-all problem of a remote measurement of parameters of marine excitement the considerable place the problem of direction finding of extending and takes extents of anisotropy of marine excitement. In the basis {fundamentals} of the solution of this problem determination function of an angular distribution of energy of waves (an angular spectrum of marine excitement) lays by the analysis of a space spectrum of a field of a signal of the reflected from a water table. Measurement of an average length of sea waves in various flight directions of A\C allows to solve problems of determination of coefficient of anisotropy and a sea direction. The functional diagram of the designed on-board device which are observing the direction extending of sea waves in-process surveyed. Results of experimental measurements of dependences of average wave length from flight direction of AC are instanced. Various sources of origination of a measuring error of a direction of propagation of sea waves are analyzed. It is shown, that in conditions of typical parameters of a flight path it is possible to limit magnitude of the aggregate root-mean-square lapse at a level of 10 grades.

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Keywords A direction of propagation; an angular spectrum; marine excitement; anisotropy; an average length; a root-mean-square lapse.
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