Formation satellite InSAR system phase synchronization method and system

• Main Authors: CHEN GANG, ZHANG XIAOWEI, QIAN FANGMING, ZHANG HAO, MENG XIN, WANG SAI, LOU LIANGSHENG
• Format: Patent
• Language: Chinese; English
• Published: 07.06.2024
• 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 discloses a formation satellite InSAR system phase synchronization method and system, and relates to the technical field of phase synchronization. The method comprises the following steps: acquiring a parameter set corresponding to each period; according to the center frequencies of the main and auxiliary radars, the initial phases of the carrier frequencies of the main and auxiliary radars and the parameter set corresponding to each period, the compensation phase of the auxiliary radar at the main radar emission moment in each period is obtained; fitting a time-compensation phase curve according to the compensation phase of the auxiliary radar at the emission moment of the main radar in each period; obtaining random phase noise in the auxiliary radar carrier at the target moment; obtaining the frequency source phase of the auxiliary radar at the target moment according to the auxiliary radar center frequency, the initial phase of the auxiliary radar carrier frequency and the random phase noise