An On-Board External Calibration Method for Aperture Synthesis Radiometer by Rotation

@article{Jin2012AnOE,
  title={An On-Board External Calibration Method for Aperture Synthesis Radiometer by Rotation},
  author={Rong Jin and Qingxia Li and Ke Chen and Guanli Yi and Hong Yang and Da Li and Jian Dong},
  journal={IEEE Geoscience and Remote Sensing Letters},
  year={2012},
  volume={9},
  pages={901-905}
}
The on-board calibration of aperture synthesis radiometers (ASRs) with large arrays by the standard method of noise injection would seriously increase hardware requirements and system complexity. To avoid the use of noise injection, an external phase calibration method with antenna array rotation is proposed in this letter, which uses the observation scene as reference without needing for an external calibrator. The relationship of the visibility samples before and after the rotation is… CONTINUE READING

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