Accession Number : ADA327542

Title :   A Comparison on Radar Range Profiles Between In-Flight Measurements and RCS-Predictions,

Corporate Author : FYSISCH EN ELEKTRONISCH LAB TNO THE HAGUE (NETHERLANDS)

Personal Author(s) : Heiden, R. van der ; Ewijk, L. J. van ; Groen, F. C.

PDF Url : ADA327542

Report Date : MAY 1997

Pagination or Media Count : 30

Abstract : The validation of Radar Cross Section (RCS) prediction techniques against real measurements is crucial to acquire confidence in predictions when measurements are not available. In this report we present the results of a comparison on one dimensional signatures, i.e. radar range profiles. The profiles were measured from a target of opportunity, a Boeing 737. At the same aspect angles and frequencies, profiles were predicted using a high frequency RCS-prediction code in conjunction with a digitized model of the Boeing. Despite the assumptions and simplifications in both the prediction code and the aircraft model, a reasonable agreement is seen on head on and tail on aspect angles. The correspondence on broad side aspect angles is seen to be better: despite differences in peak amplitudes, normalised correlation coefficients up to 0.9 are observed.

Descriptors :   *MATHEMATICAL MODELS, *VALIDATION, *RADAR CROSS SECTIONS, *RADAR SIGNATURES, MEASUREMENT, PEAK VALUES, HIGH FREQUENCY, PREDICTIONS, NETHERLANDS, TAIL ASSEMBLIES, ONE DIMENSIONAL, RADAR, CODING, CORRELATION, PROFILES, COEFFICIENTS, INFLIGHT, RANGE(DISTANCE), AIRCRAFT MODELS, AMPLITUDE, RAY TRACING, DUTCH LANGUAGE, ASPECT ANGLE.

Subject Categories : Operations Research
      Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE