Submersible pilots also rely upon a technique known as inertial navigation, using a system of accelerometers and gyroscopes to track their position and orientation in relation to a known starting point and velocity.

行员还依靠一种被称为惯性导航技术，使用一个由加速度计和陀螺仪组成系统来跟踪们与已知起点和速度相关位置和方向。

OceanGate's Titan submersible carries a state-of-the-art self-contained inertial navigation system which it combines with an acoustic sensor known as a Doppler Velocity Log to estimate the depth and speed of the vehicle relative to the sea floor.

海洋之门公司泰坦器携带了最先立惯性导航系统，它结合了一个被称为多普勒速度日志声学传感器，以估计器相对于海底深度和速度。