Analysis of Varying-PRI Spotlight SAR Data

• Published in: IEEE transactions on geoscience and remote sensing Vol. 60; pp. 1 - 20
• Main Authors: Zhou, Zi-Xuan, Deng, Yunkai, Wang, Wei, Jia, Xiaoxue, Wang, Robert
• Format: Journal Article
• Language: English
• Published: New York IEEE 2022; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Algorithms; Azimuth; Doppler sonar; Doppler spectral distribution; Image resolution; Imaging; preprocessing; Pulse duration; Pulse repetition interval; pulse repetition interval (PRI) variation; Radar; Radar imaging; SAR (radar); Spaceborne radar; spotlight synthetic aperture radar (SAR); Swath width; Synthetic aperture radar

For ultrahigh-resolution spaceborne spotlight synthetic aperture radar (SAR), the effective swath width is limited by the severe range migration. By adapting the pulse repetition interval (PRI) according to the change of the slant range, however, the range migration can be substantially reduced, whi...