METHOD OF AIDING NAVIGATION WITH ACOUSTIC SIGNAL

PURPOSE:To safely guide a navigating ship, by providing a pair of acoustic signals in symmetric positions with respect to a narrow canal, and sounding both the acoustic signals at the same sound period and same sound level with one of the acoustic signals sounded at a given delay time so as to guide...

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Bibliographic Details
Main Author TAKEYASU ISABUROU
Format Patent
LanguageEnglish
Published 09.07.1984
Subjects
ANALOGOUS ARRANGEMENTS USING OTHER WAVES
DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES
EQUIPMENT FOR SHIPPING
LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES
MEASURING
PERFORMING OPERATIONS
PHYSICS
RADIO DIRECTION-FINDING
RADIO NAVIGATION
RELATED EQUIPMENT
SHIPS OR OTHER WATERBORNE VESSELS
TESTING
TRANSPORTING
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Summary:PURPOSE:To safely guide a navigating ship, by providing a pair of acoustic signals in symmetric positions with respect to a narrow canal, and sounding both the acoustic signals at the same sound period and same sound level with one of the acoustic signals sounded at a given delay time so as to guide the ship on a line of the same sound level. CONSTITUTION:Acoustic signals are provided at a lighthouse 3 and a light beacon 4 which are located in symmetric positions with respect to a narrow canal between a cape 1 and offshore sunken rocks 2 as being a navigation route. Each of the acoustic signals is sounded at the same sound period and same sound level with one of the acoustic signals sounded at a given delay time. Both the sounds are caught by a pilot in a ship, and accordingly a line X of the same sound level, that is a navigation route may be easily detected, thereby safely guide the navigating ship.
Bibliography:Application Number: JP19820225680