Calibration Method of Rang-variant Height Errors in High Resolution Airborne InSAR

HONG Jun; ZENG Youbing; WANG Yu

doi:10.11999/JEIT160021

Volume 38 Issue 12

Jan. 2017

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Article Navigation > Journal of Electronics & Information Technology > 2016 > 38(12): 3245-3251

HONG Jun, ZENG Youbing, WANG Yu. Calibration Method of Rang-variant Height Errors in High Resolution Airborne InSAR[J]. Journal of Electronics & Information Technology, 2016, 38(12): 3245-3251. doi: 10.11999/JEIT160021

Citation:

HONG Jun, ZENG Youbing, WANG Yu. Calibration Method of Rang-variant Height Errors in High Resolution Airborne InSAR[J]. Journal of Electronics & Information Technology, 2016, 38(12): 3245-3251. doi: 10.11999/JEIT160021

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Calibration Method of Rang-variant Height Errors in High Resolution Airborne InSAR

doi: 10.11999/JEIT160021

HONG Jun¹,
ZENG Youbing^{1
,
,},
WANG Yu¹

Funds:

The National Science and Technology Major Project (GFZX0403220402, GFZX04032204)

Received Date: 2016-01-08
Rev Recd Date: 2016-05-20
Publish Date: 2016-12-19

Abstract

Abstract

High resolution airborne Interferometric Synthetic Aperture Radar (InSAR) is one of the important methods to generate high precision Digital Elevation Model (DEM). Due to the phase pattern difference between the two antennas, the interferometric phase bias varies with the range. The traditional interferometric calibration regards the phase bias as a constant, and it is not able to correct the range-variant phase errors. Therefore, there are range-variant errors of the reconstructed elevation. To solve this problem, this paper presents a calibration method that uses polynomial to fit the interference phase bias. At last, a set of real airborne InSAR data are used to validate the method, and the experimental results show that the proposed method can solve the problem of range-variant height errors in high resolution airborne InSAR effectively.
- InSAR,
- High resolution,
- Interferometric calibration,
- Range-variant height errors,
- Interferometric phase bias

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References(25)

References

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