Strapdown inertial navigation/spectrum red shift autonomous integrated navigation system and filtering method
A technology of integrated navigation system and strapdown inertial navigation, which is applied in the field of autonomous integrated navigation system and filtering, can solve the problems of unable to obtain enough observation information, temporary interruption of measurement signal, and inability to obtain measurement information, etc., to improve navigation positioning accuracy and filtering Calculation accuracy, application of extended space, good concealment effect
Pending Publication Date: 2021-08-24
NORTHWESTERN POLYTECHNICAL UNIV
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Abstract
The invention provides a strapdown inertial navigation/spectral red shift autonomous integrated navigation system and a filtering method, which are characterized in that speed information and height information output by an SINS (strapdown inertial navigation system) are corrected by using high-precision speed information obtained by an SRS (sounding reference signal) and height information obtained by a barometric altimeter, navigation calculation is carried out by using provided adaptive random weighted cubature Kalman filtering, and the accuracy of navigation information is improved. The integrated navigation system disclosed by the invention has the advantages of strong autonomy, good concealment, high precision, strong reliability and the like, improves the precision of navigation filtering solution, and can be used for improving the navigation positioning precision and the filtering solution precision of spacecrafts in China; and the method not only plays an important role in improving the navigation and positioning precision of spacecrafts in China, reducing the operation cost and expanding the space application, but also plays an important role in improving the viability of the spacecrafts under the war condition.
Application Domain
Navigational calculation instrumentsInstruments for comonautical navigation +1
Technology Topic
EngineeringInertial navigation system +7
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