Aerospace Instrument-Making Annotation << Back The estimation of strapdown graviinertial navigation complex opportunities in problems of vector marine gravimetry with satellite navigation usage A.V. Tyuvin, A.A. Afonin, M.V. Zharkov, M.V. Karachevtsev, A.S. Sulakov Vector gravimetric measurements (VGM) execution opportunities by using the strapdown graviinertial navigation complex (SGNC) based on autonomous unmanned submersible (AUS) are analyzed. VGM realization is supplied with SGNC information core – strapdown inertial navigation system, depth meter system, magnetometric course angle system and satellite navigation system (SNS) indications optimal complexation with adequate accuracy for practical use. VGM potential accuracy rankings by using SNS at the SGNC prelaunch alignment stage and during AUS underwater motion are presented. Since AUS usage limits SNS application as precision external information source of navigation parameters, VGM autonomous realization premises by means of SGNC integrated with AUS automatic control system are discussed.