This paper presents an approach for modeling an inertial navigation system. This system consists of a 3D acceleration and rotation sensor array, analog and digital error correction, gravitation compensation, supporting point extraction, serial interface and software application. Analogue interfaces are described on lowest abstraction level to allow easy exchange and refinement of components. Modeling is achieved using SystemC-AMS for analogue parts and SystemC for digital and software components. The SystemC extension SVE is used allowing high abstraction levels for communication between main components. The model is simulated and verificated by stimulating with different accelerations and rotations representing sensor movements.