Inspec keywords: biomechanics; velocity measurement; inertial systems; motion estimation; correlation theory; measurement systems; motion measurement; least mean squares methods; measurement errors; estimation theory; regression analysis; Gaussian processes

Other keywords: regression analysis; sensor inherent error; pervasive swimming velocity estimation; RMS error; body worn IMU; inertial measurement unit; Gaussian process; biomechanical constraint; linear correlation

Subjects: Interpolation and function approximation (numerical analysis); Spatial variables measurement; Spatial variables measurement; Numerical approximation and analysis; Velocity, acceleration and rotation measurement; Other topics in statistics; Biomechanics, biorheology, biological fluid dynamics; Probability theory, stochastic processes, and statistics; Instrumentation and measurement systems; Velocity, acceleration and rotation measurement