摘要
为了对星载干涉合成孔径雷达(InSAR)系统信号处理研究提供数据源,研究了系统干涉信号的模拟。首先分析了信号模拟所需的几何模型、散射模型及信号模型,给出了利用这些模型模拟干涉信号的流程。通过分析小面单元数与相干系数的关系,得到当取满足一定条件的小面单元数时,模拟出的干涉信号能够进行干涉,并且其相干系数能和理论值吻合。通过采用上述方法进行模拟验证了上述方法的有效性。
In order to supply data to the signal processing study of spaceborne InSAR system, the interferometric signal simulation was studied. At first the geometric model, backscattefing model and signal model needed by the simulation was analyzed. Using these models the simulation process was given. Then the relationship between facet number and correlation coefficient was analyzed. The analysis shows that by using fight facet number the simulated signal can interfere and the correlation coefficient can near its theoretic value. Simulated results can validate this method.
出处
《通信学报》
EI
CSCD
北大核心
2006年第8期57-61,共5页
Journal on Communications
