High Resolution 2-D Imaging with Spectrally Thinned Wideband Waveforms

A research program is under way at the Valley Forge Research Center to demonstrate that a unique form of pulse compression (when combined with techniques developed at VFRC for improved angular resolution) allows the presentation of high resolution two-dimensional images from a low bandwidth radar system. The pulse compression system provides the required improvement in the range resolution, and ISAR with adaptive beamforming for self-calibration purposes is used to achieve high resolution in azimuth. This technique was successfully demonstrated at VFRC many years ago [1].