ANALYSIS OF THE PUFFS TRACKER WOX-1A AS A GENERAL NONLINEAR FILTER

Abstract

Statistical analysis is made of the PUFFS Target Tracker WOX-1A. This device uses a nonlinear tracking scheme such that the estimated target position is changed in discrete steps of fixed magnitude, dependent only upon the sign of observed error at regular sampling intervals. The theoretical performance characteristics of the tracker are determined from the statisticalANALYSIS. Equations are developed for the output standard deviation of tracker position, the lag in tracker position due to bearing rates, and the equivalent integration time of the tracker as functions of the input standard deviation and the tracker step size. Experimental verification is presented for some of the results, and the qualitative operation of the tracker is discussed as an adaptive system interchanging bandwidth and output noise. Other applications for nonlinear systems of this type are mentioned, including tracking and post-filtering problems in sonar or radar, and filtering problems in navigation systems.

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Document Details

Document Type
Technical Report
Publication Date
Feb 06, 1961
Accession Number
AD0258673

Entities

People

  • C. N. Pryor

Organizations

  • Naval Ordnance Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Distribution Functions
  • Dynamic Response
  • Electronics Laboratories
  • Filters
  • Filtration
  • Frequency
  • Frequency Response
  • Linear Systems
  • Military Research
  • Munitions
  • Naval Operations
  • Ordnance Laboratories
  • Physics Laboratories
  • Probability
  • Signal Processing
  • Standards
  • Transfer Functions

Fields of Study

  • Engineering

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Control Systems Engineering.
  • Sensor Fusion and Tracking Systems.