SONIC SURVEY DEVICE AND SONIC SURVEY DATA PROCESSING METHOD

To provide a sonic survey device capable of increasing a degree of freedom of selection of a reflection point interval and the number of common depth point stacks by recording an equal interval signal and a received wave signal by a same data recording device in a survey stage by navigation of a survey ship, and sonic survey data processing method.SOLUTION: A sonic survey data processing method includes: in a survey stage by navigation of a survey ship, causing a data recording device 10 to record a continuous wave signal from a continuous wave signal generator 7, a received wave signal from a geophone 6, an equal interval signal from an equal interval signal generator, and a GPS time signal from a GPS time signal generator 14; and after the survey by the survey ship, causing a data processing device 11 to select from the data recording device 10, a continuous wave signal of a time length corresponding to a target horizontal resolution and a received wave signal corresponding thereto, and executing cross-correlation processing thereof.SELECTED DRAWING: Figure 1 【課題】調査船の航行による調査段階では等間隔信号と受振波信号とを同じデータ収録装置で収録することによって反射点間隔と共通反射点重合数との選択の自由度を増すことのできる音波探査装置および音波探査データ処理方法を提供する。【解決手段】調査船の航行による調査段階ではデータ収録装置１０が連続波信号発生装置７からの連続波信号と受振器６からの受振波信号と等間隔信号発生装置からの等間隔信号とＧＰＳ時刻信号発生装置１４からのＧＰＳ時刻信号とを記録し、調査船による調査後にはデータ処理装置１１が目的とする水平分解能に対応する時間長の連続波信号とそれに対応する受振波信号をデータ収録装置１０から選択してそれらの相互相関処理を行う。【選択図】図１