Signal-to-noise ratio processing method and device of synthetic aperture radar, and storage medium

• Main Authors: WANG WEI, CHEN ZHEN, QIU JINGSONG, WANG YU, DENG YUNKAI, ZHANG ZHIMIN
• Format: Patent
• Language: Chinese; English
• Published: 30.11.2021
• 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 embodiment of the invention discloses a signal-to-noise ratio processing method and device of a synthetic aperture radar and a storage medium, and the method comprises the steps: obtaining a two-dimensional weighting coefficient of an echo signal, carrying out the weighting of the echo signal according to the two-dimensional weighting coefficient, obtaining a weighted echo signal, and dividing azimuth signals in the weighted echo signals into a plurality of sub-aperture signals in a frequency domain, respectively imaging the plurality of sub-aperture signals and range signals in the weighted echo signals, and then carrying out superposition processing to obtain amplified echo signals. According to the technical scheme, the number of channels of the radar can be increased on the premise that hardware is not increased, the number of echo signals is increased along with the increase of the number of the channels, the echo signals can be amplified after the range direction signals in the multiple sub-aperture