Volume 1 Issue 4
Dec.  2012
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Hu Ji-wei, Hong Jun, Ming Feng, Li Liang. Model-based CP Selection Method for Calibration of Airborne InSAR with Sparse GCPs[J]. Journal of Radars, 2012, 1(4): 441-445. doi: 10.3724/SP.J.1300.2012.20090
Citation: Hu Ji-wei, Hong Jun, Ming Feng, Li Liang. Model-based CP Selection Method for Calibration of Airborne InSAR with Sparse GCPs[J]. Journal of Radars, 2012, 1(4): 441-445. doi: 10.3724/SP.J.1300.2012.20090

Model-based CP Selection Method for Calibration of Airborne InSAR with Sparse GCPs

doi: 10.3724/SP.J.1300.2012.20090
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胡继伟(1982-),男,助理研究员,博士,研究方向为分布式SAR 定标技术、SAR 图像质量评估。E-mail: hujw0304@gmail.com 洪 峻(1960-),男,研究员,博士生导师,研究方向为SAR 定标技术、机载SAR 系统设计。 明 峰(1977-),男,副研究员,研究方向为SAR 定标技术、SAR 数据定量化处理。 李 亮(1980-),博士生,助理研究员,主要从事SAR 系统定标技术、机载SAR系统设计以及电离层对星载SAR成像影响校正等方面的研究。

  • Received Date: 2012-11-30
  • Rev Recd Date: 2012-12-05
  • Publish Date: 2012-08-28
  • High-precision height acquisition needs to correct the interferometric parameters errors by interferometric calibration for Interferometric Synthetic Aperture Radar (InSAR) system with many Ground Control Points (GCPs). For the situation that some areas probably only have little GCPs or even no GCPs, a new high-precision calibration method for airborne InSAR based on bundle adjustment is needed, in which the Control Points (CP) selection method is a major point which has a crucial influence on the precision of InSAR calibration. A model-based CP selection method for calibration of airborne InSAR with sparse GCPs is proposed in this paper, which adopts the polynomial model fit method to choose CP based on the sensitivity characteristic of inSAR interferometric parameters. A joint calibration is made with the real InSAR data and the results confirm the validity and rationality of the proposed method.

     

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