AN/BRN-7 Computer Program Specification. Volume VI. Kalman Filter Subprogram Design.

Abstract

The outputs of the tracking filters are well-filtered values of phase-difference, along with the estimates of phase variance, and phase rate variance. It is within the Kalman (or combinational filter) operations that the ouputs of the tracking filters are statistically, optimally combined, arriving at 'best' estimates of system position and velocity. The combinational filter also performs the coordinate conversion from phase difference to geodetic coordinates (latitude and longitude). The rate of change of frequency between the local oscillator in the receiver and transmitted OMEGA signals is also determined. The combinational filter is also used for lane determination. Lane determination (laning) is accomplished by use of a multiple state vector technique.

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Document Details

Document Type
Technical Report
Publication Date
Oct 12, 1973
Accession Number
ADA047911

Tags

Communities of Interest

  • Advanced Electronics
  • C4I
  • Ground and Sea Platforms
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Authentication
  • Clocks
  • Computations
  • Computer Programs
  • Computers
  • Covariance
  • Databases
  • Demographic Cohorts
  • Difference Frequency
  • Electronics
  • Filters
  • Frequency
  • Kalman Filters
  • Local Oscillators
  • Measurement
  • Procedures (Computers)
  • Time Intervals

Fields of Study

  • Engineering

Readers

  • Approximation Theory.
  • Computer Science.
  • Phased Array Antenna Design.