摘要
该文针对双天线干涉SAR系统基线抖动的特点提出了一种能够精确仿真基线抖动影响的改进二维频域原始回波生成算法。该算法通过Taylor展开近似将基线抖动造成的相位误差分解为随方位向时变和随距离向空变的两个一维函数,从而实现了精确仿真。适用范围分析表明该算法能满足实际系统的仿真需求,是一种精确高效的算法,具有较大应用价值。
In this paper, an improved 2D Fourier domain simulator is presented, which can take the effects of baseline oscillations into account accurately. The phase error caused by baseline oscillation is separated into the azimuth time-variant term and the range space-variant one by Taylor expansion and then is taken into account accurately. The analysis of validity limits shows that this algorithm can be used for the simulation of practical systems. It is accurate and efficient, so it has good application values.
出处
《电子与信息学报》
EI
CSCD
北大核心
2009年第8期1856-1861,共6页
Journal of Electronics & Information Technology
