Accession Number : AD0861321

Title :   Nanosecond Radar Observations of Sea Clutter Cross Section Vs Grazing Angle.

Descriptive Note : Interim rept.,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON DC

Personal Author(s) : Myers, G. F. ; Fuller, I. W., Jr

Report Date : 08 OCT 1969

Pagination or Media Count : 36

Abstract : The X-band magnitude of cross section per unit area sigma sub O at various grazing angles was measured using nanosecond radar techniques and sea-clutter generation in the NRL swimming pool. The sigma sub O curves for both horizontal and vertical polarization have been measured and fall near open-ocean observed values in the range of 8 degrees to 80 degrees. Below 8 degrees the open-ocean values are higher, and above 80 degrees they are lower. Some statistical properties of small-wave sea clutter are shown. Cross section sigma sub O as a function of wind velocity was measured. The combination of nanosecond radar techniques and the carefully controllable environment of the swimming pool permits unique measurements of properties of targets and sea clutter over water. (Author)

Descriptors :   (*OCEANS, RADAR SIGNALS), (*RADAR CLUTTER, OCEAN WAVES), RADAR CROSS SECTIONS, X BAND, ANGLE OF ARRIVAL, MODEL TESTS, MEASUREMENT, STATISTICAL ANALYSIS, MICROWAVE FREQUENCY.

Subject Categories : Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE