We propose demonstration of a bistatic HF radar to map vector currents, current shear, and wind vector fields using a multiple-frequency bistatic HF radar capability currently under development. The proposal leverages on our ongoing work in bistatic HF digital transceiver development for Office of Naval Research, our development of a ship RCS measurement radar for ONR/ NSWC on the west coast, and our two-site bistatic experimental site being developed at the mouth of the Chesapeake Bay. The bistatic HF radar would take advantage of the new transceiver's programmable digital frequency switching to cover a range of 3-30 MHz for current shear, and as a bi-product, ship target classification. Bistatic looks offer an enhanced classification and tracking capability over monostatic. Algorithms recently developed by Vesecky (IGARSS '02) indicate that wind field vector maps can be derived from current shear estimates. We intend to use this algorithm in conjunction with bistatic radar data, requiring only a single receive antenna array
