Journal of Systems Engineering and Electronics ›› 2010, Vol. 32 ›› Issue (4): 729-733.

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Range-Doppler algorithm-based missile-borne SAR imaging with lateral avoidance trajectory

QIN Yu-liang, WANG Jian-tao, WANG Hong-qiang, LI Xiang   

  1. (School of Electronic Science and Engineering, National Univ. of Defense Technology, Changsha 410073, China)
  • Online:2010-04-23 Published:2010-01-03

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Abstract:

The general relative range model for non-linear trajectory is built firstly, followed by the maneuver induced phase errors analysis The quantitative conditions of ignoring these errors are deduced later. Then this paper concerns on the issue of missile-borne SAR in the trajectory with lateral maneuver: the characteristics of signals are analyzed and a range-Doppler based algorithm is presented according to these characteristics. Compared with the range-Doppler algorithm under linear aperture, the new one just modifies some phase correction factors and needs no additional complexity owing to nonlinear aperture.

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