Integration and Test of Domestic Gravity Measurement System

The development of the unmanned ship technology provides a new method for Marine geological survey of the advantages of flexible can solve the traditional Marine geological survey in shoals, reefs and other regional problems can't be measured. At present, there are few researches on the application of ocean gravimetry on unmanned ship platform. This paper will focus on the ocean gravimetry on unmanned ship. Firstly, it briefly reviews the development history of unmanned ship industry, and introduces the key processing technology of unmanned ship gravimetry. Then the process of gravity measurement of unmanned ship is introduced. We have conducted two repeated measurements in a sea area of Zhuhai, and the accuracy of the repeated line and intersection measured at 5 knots and 7 knots respectively is better than the requirements of the Marine gravity survey specification. The stability and reliability of the gravity measurement system of unmanned ship are verified, which lays a foundation for the production and application of gravity measurement of unmanned ship.