ZHOU Peng, PI Yi-ming. Two Methods for Beam Synchronization in Spaceborne/Airborne Hybrid Bistatic SAR[J]. Acta Electronica Sinica, 2009, 37(6): 1192-1197.
ZHOU Peng, PI Yi-ming. Two Methods for Beam Synchronization in Spaceborne/Airborne Hybrid Bistatic SAR[J]. Acta Electronica Sinica, 2009, 37(6): 1192-1197.DOI：
The biggest challenge in the development of spaceborne/airborne hybrid bistatic synthetic aperture radar
abbreviated as SA-BSAR in the text
is the beam synchronization of the antenna footprints.A method by performing beam steering on both sides has been reported in some published literature.There are
however
in the existing method
some assumptions that significantly limit its practicability.Two methods are given and validated.In the discussion of the first method
a modified mathematical model is presented to cancel those assumptions.The second method transmits a very wide beam in azimuth making use of the characteristic of the receiving distance in SA-BSAR is much shorter than the one in spaceborne SAR systems.The second approach provides
with the same azimuth resolution
a longer scene extension than the length achieved by the first approach.Advantages and disadvantages of each method are discussed and the applicable ranges for each method are also analyzed.
京公网安备11010802024621