Method and Means for Providing Optimum Signal-to-Clutter Ratio Antenna Operation in an AMTI Radar.
Abstract
The patent application relates to the target-to-clutter ratio of return signals in an AMTI radar system maximized by adjusting the phase and amplitude driving coefficients of each antenna element. A matrix of complex numbers is developed as a function of aircraft velocity, radar system operating frequency, radar system doppler filter response frequency, radar look angle, and antenna scattering matrix values. The phase and amplitude driving coefficients of each antenna element are derived from a corresponding complex number matrix. In an alternative embodiment the receive antenna beam is formed in the system processing by combining digital representations of the received signals for each element. The receiving coefficients for the transmit antenna are formed in a beam forming matrix and the digitized return signal are multiplied by appropriate complex matrix numbers in a digital processor.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 20, 1975
- Accession Number
- ADD001458
Entities
People
- William B. Goggens
Organizations
- United States Department of the Air Force