A new not seen in the history of inertial navigation laws difference accumulation noise gyros in platform and strapdown inertial systems (35 years later)

Abstract. This article was first presented to the world a new kinematic effect: "The accuracy of orientation platform inertial navigation system and strapdown inertial navigation system based on the same gyros differs even when identically matching errors and noise as part of gyroscopes platform inertial navigation system and strapdown inertial Navigation System. " One manifestation of this effect: "Noises gyro with zero values ​​of noise power spectral density at zero frequency do not lead to a significant increase in errors orientation platform inertial navigation system (second-order effect" small "), but lead to a very substantial increase in strapdown inertial orientation errors navigation system (first-order effect "small"), "The difference between the partial contributions of noise in precision targeting platform and strapdown inertial navigation systems is of the order (10, 100, 1000 and more times), depending on the structure and type of noise gyroscopes rotating object .