Engineering topics
Publications and source records attributed to Higgins, W. T..
Antenna system handles data acquisition and tracking, functions as a sensitive radio telescope, and serves as a radiometer in earth atmosphere investigations. Antenna's sensitivity permits resolution of solar disk quadrants in Doppler radar observations. Antenna also serves as a planetary radar device and link to commercial aircraft.
Spiral-like coil is printed with several extra turns which increase the realizable coil inductance. Included are shorting connections which not only short the extra turns, but also short out several turns of the main body. Coil tuning is accomplished by removing the shorts until the desired inductance is obtained.
Second Method of Liapunov, Popov frequency criterion, and matrix inequality method used to study stability of nonlinear and/or time dependent control systems
Design considerations for Sunblazer solar probe and payload