The antenna is a 5 x 10 meter aperture with 14 independent channels. Calibration leads to low antenna sidelobes, supports good null depths in azimuth and doppler, supports accurate RCS calculation, and supports range, azimuth and elevation metrics.
Calibration is required throughout the test program.
The first step toward a complete calibration of the radar is to equalize the receive channels. However, the acal and rcal calibration files are included in the recorded data set for completeness. Data was collected on the MTS in the mission data format and provided in the database. In addition, the recorded thermal noise at each channel is provided as ncal files to enable accurate estimation of signal to noise factors. The purpose of these experiments was to establish a baseline for subsequent tests.