individual error source


elementary physical characteristic or process originating from a well-defined source which contributes to a performance error or a performance knowledge error


  • NOTE For example sensor noise, sensor bias, actuator noise, actuator bias, disturbance forces and torques (e.g. microvibrations, manoeuvres, external or internal subsystem motions), friction forces and torques, misalignments, thermal distortions, assembly distortions, digital quantization, control law performance (steady state error), jitter, etc.
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