多基线InSAR信号处理中优化阵列的应用

多基线干涉合成孔径雷达（Multi-Baseline　interferometric　SAR）是传统单基线InSAR的扩展,能够得到高分辨的高度地形图。但同时传感器的增加使得硬件开销大大增加。本文研究了优化阵列在多基线InSAR信号处理中的应用。在仿真实验中,通过与相同阵元个数的均匀阵列和传统单基线InSAR相比优化阵列显著提高了高度分辨率;同时,若要达到相同分辨率,则阵列优化可大大减少阵元个数,从而减少了硬件开销。

Multi-Baseline InSAR Using Nonuniform Linear Arrays

The Multi-Baseline interferometric SAR is an extension of standard single-baseline InSAR, and can generate fine resolution 3-dimensional images. However additional sensors increase the spending of hardware. Multi-Baseline interferometric SAR with optimized nonuniform linear arrays is proposed in this paper. By simulation, the results of our proposed ways, which compared with single-baseline InSAR and uniform linear arrays multi-baseline InSAR are illustrated. The resolution of the height direction is improved. When the same resolution is given, less sensors will be needed so as to decrease the spending of hardware.