RADAR DETECTION OF INTERNAL WAVES USING HORIZONTAL POLARIZATION AT LOW GRAZING ANGLES

A RELATIVELY UNEXPLORED, BUT POSSIBLY VERY IMPORTANT PARAMETER REGION FOR RADAR DETECTION OF INTERNAL WAVES IS THAT OF RELATIVELY LOW GRAZING ANGLES AT HH POLARIZATION. IT IS SUGGESTED IN THE LITERATURE THAT THE FRACTIONAL MODULATION OF RCS PER UNIT AREA IS LARGE UNDER SOME CIRCUMSTANCES FOR HH POLARIZATION AT LOW GRAZING ANGLES. WE WILL INVESTIGATE THE FEASIBILITY OF THIS APPROACH USING SIMPLIFIED MODELS DEVELOPED IN LITERATURE AND COMPARE TO EMPIRICAL DATA. IN ADDITION, A PRELIMINARY EXAMINATION OF THE EFFECT OF LINEARITY ASSUMPTIONS IN THE SIMPLIFIED MODEL ON DETECTABILITY WILL BE PERFORMED. FINALLY, A SET OF EXPERIMENTS WILL BE DEFINED WHICH WILL PROVIDE DATA FOR VALIDATION OF THIS APPROACH.