Homologous common-view multiband interference SAR (Synthetic Aperture Radar) test system

• Main Authors: HUANG LONG, XIA XUE, CHEN GANG, XU HUI, DONG XIAOHUAN, MIAO YUZHE, ZHAO HAOHAO, LIN YOUQUAN, LIU AIFANG, LOU LIANGSHENG
• Format: Patent
• Language: Chinese; English
• Published: 04.11.2022
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

The invention relates to a homologous common-view multiband interference SAR (Synthetic Aperture Radar) test system, which comprises two sets of X-Ku ultra-wideband antennas, two sets of L-band antennas, two sets of P-band antennas, six sets of frequency conversion receivers, four sets of excitation sources, a set of reference source, a set of digital single machine, two sets of internal calibrators, two sets of wave controllers and two sets of servo systems, the reference source provides a reference signal to the excitation source, the excitation source up-converts the signal to a corresponding frequency band, amplifies the signal and outputs the amplified signal to the antenna array surface, the antenna radiation unit radiates electromagnetic waves in a specific direction, and after a certain time delay, the radiation unit receives reflection echoes of a target area and transmits the echoes to the corresponding receivers. Through low-noise amplification, down-conversion and filtering operations, the AD samp