APPLICATION OF THE DALMAN FILTER TO SPHERICAL DISCRETE TRACK SMOOTHING AND PREDICTION.
Abstract
The paper investigates the effectiveness of a method for circumventing the problem of nonlinear observation of a linear system's state variables in the Kalman filter discrete estimation scheme. The method employs a linearization of the nonlinear coordinate transformation, in this case cartesian to spherical. The performance of a filter designed by this method is observed as a function of measurement error, accuracy of filter initialization, and the relevance of the estimated initial error covariance, P sub 2/1. The investigation reveals that the most critical factor in filter performance and stability is filter state initialization. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1966
- Accession Number
- AD0639920
Entities
People
- J. S. Demetry
- R. E. Hudson
Organizations
- Naval Postgraduate School