Evaluation of Data Compression Techniques for Radar Landmass Terrain Data
NAVAL TRAINING EQUIPMENT CENTER ORLANDO FL
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The objective of this research is to develop an objective evaluation method for determining the goodness of various data compression techniques applied to radar landmass simulation data, to validate the objective evaluation method by comparison with a subjective evaluation performed by experienced radar operators and to compare the objective evaluation with the currently used terrain RMS error criteria. This research consists of the computation of simulated radar shadow displays, the computation of various measures of goodness which are combined in a performance criteria, and the subjective evaluation of the simulated displays. The objective evaluation method which is developed measures the goodness of the data compression techniques in terms of the usefulness of the simulated radar displays. The results obtained demonstrates the inadequacy of the terrain RMS error criteria and the degrading smoothing effect introduced by polynomial data compression. It is recommended that, prior to the implementation of any terrain data compression technique in a radar landmass simulator, it be evaluated in the manner proposed.
- Humanities and History
- Active and Passive Radar Detection and Equipment