Abstract
A comprehensive performance analysis method of three-channel SAR (synthetic aperture radar) GMTI (ground moving target indication) was presented after analyzing the theory of conventional three channel SAR ground moving target indication methods. The main error factors such as velocity variety of radar platform, receiver channel mismatch, clutter internal motion and system noise were considered in this method and the detection performance of each error factor affect on was analyzed too. The shortcoming of conventional three channel SAR/GMTI methods is that the performance of minimum detectable velocity, ambiguous speed and blind-speed simultaneously can't be improved to meet the requirements of the system. The improved method solves the problem without increasing receiving channels by rearranging the transmitting and receiving antennae. Theoretical analysis and simulation results show the validity of this scheme.
| Original language | English |
|---|---|
| Pages (from-to) | 904-908 |
| Number of pages | 5 |
| Journal | Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics |
| Volume | 35 |
| Issue number | 7 |
| State | Published - Jul 2009 |
Keywords
- Ambiguous speed
- Blind-speed
- Clutter internal motion
- Ground moving target indication
- Minimum detectable velocity
- Synthetic aperture radar
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