TY - GEN
T1 - Signal Model and Influence Analysis of Spaceborne SAR Images in the Presence of Mutual Terrain-Scattered Interference
AU - Sun, Huanyu
AU - Tao, Mingliang
AU - Liu, Yanyang
AU - Su, Jia
AU - Wang, Ling
N1 - Publisher Copyright:
© 2023 International Union of Radio Science.
PY - 2023
Y1 - 2023
N2 - Since the development of satellite technology and limited spectrum resources, more and more spaceborne synthetic aperture radar (SAR) systems share the same frequency band. For this reason, a new form of radio frequency interference (RFI), i.e., mutual terrain scattering interference (MTSI), will be occurred between different spaceborne SARs in the case of overlapping time, space, and frequency, seriously degrading the imaging quality. This paper investigates the signal model and impact of spaceborne SAR images in the presence of MTSI. We first established a geometric model of the interference propagation path, from which the mechanism of interference is analyzed, and derive the signal model and energy of echoes. Then, simulated experiments using RADARSAT images are provided to illustrate the relationship between various radar parameters and resulting interference artifacts, which could be beneficial for interference identification and mitigation.
AB - Since the development of satellite technology and limited spectrum resources, more and more spaceborne synthetic aperture radar (SAR) systems share the same frequency band. For this reason, a new form of radio frequency interference (RFI), i.e., mutual terrain scattering interference (MTSI), will be occurred between different spaceborne SARs in the case of overlapping time, space, and frequency, seriously degrading the imaging quality. This paper investigates the signal model and impact of spaceborne SAR images in the presence of MTSI. We first established a geometric model of the interference propagation path, from which the mechanism of interference is analyzed, and derive the signal model and energy of echoes. Then, simulated experiments using RADARSAT images are provided to illustrate the relationship between various radar parameters and resulting interference artifacts, which could be beneficial for interference identification and mitigation.
UR - http://www.scopus.com/inward/record.url?scp=85175147741&partnerID=8YFLogxK
U2 - 10.23919/URSIGASS57860.2023.10265349
DO - 10.23919/URSIGASS57860.2023.10265349
M3 - 会议稿件
AN - SCOPUS:85175147741
T3 - 2023 35th General Assembly and Scientific Symposium of the International Union of Radio Science, URSI GASS 2023
BT - 2023 35th General Assembly and Scientific Symposium of the International Union of Radio Science, URSI GASS 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 35th General Assembly and Scientific Symposium of the International Union of Radio Science, URSI GASS 2023
Y2 - 19 August 2023 through 26 August 2023
ER -