ASA 126th Meeting Denver 1993 October 4-8

1pUW9. Measurements of bi-static scattering coefficients with frequency dispersive source arrays.

Newell O. Booth

NCCOSC, RDT&E DIV, Code 541, San Diego, CA, 92152-6435

Shelby F. Sullivan, Jr.

Lockheed Aeronaut. Systems Co., San Diego, CA 92152

A method of measuring bi-static scattering coefficients with frequency dispersive source (FDS) arrays is described and illustrated with experimental data. FDS array pings form a set of narrow beams at different frequencies. Signals from vertical FDS arrays are scattered from boundaries and received on a bi-static receiver. Resolution of the scattering area is achieved from the intersection of the time of arrival ellipse and the conical beam. FDS arrays design principles are summarized and efficient methods of analyzing the data using reverberation models are described.