| 摘要 |
PURPOSE:To detect many target positions different in backscattering coefficients, and to detect a quality of a target, by rotating in one body an antenna aperture for emitting various radio waves different in directions. CONSTITUTION:Radio waves different in frequency and polarization, respectively are emitted from three sets of antenna apertures 17-19 in different directions, and these apertures 17-19 are rotated is one body centering around the rotary shaft. According to this constitution, different kind of target positions is detected by a calescence point on a sweep trace of PLAN POSITION INDICATOR with respect to the antennas 17-19, and the quality of a target is detected by a difference of its luminance. |
