NDLI: Data-oriented calibration method to reduce measurement bias in SFAP-based GNSS receivers

Content Provider	IET Digital Library
Author	Xu, Hailong Cui, Xiaowei Lu, Mingquan
Abstract	Spatial frequency adaptive processing (SFAP) is the dimension-reduced alternative of spatial temporal adaptive processing (STAP), which can achieve good interference mitigation capability with less computational cost. However, just as STAP, the biases of the ranging code phase and carrier phase induced by the adaptive array restrict SFAP from being applied in high-precision global navigation satellite system receivers. To address this issue, a new data-oriented calibration method is proposed. Unlike previous bias reduction methods, which compensate the measurement biases with estimated values in the tracking loop, this method carries out calibration directly on the received data in the frequency domain, thus avoids modification to the rest parts of the receiver other than the SFAP module. The calibration value in each frequency bin is determined from the transfer function of the SFAP array. Simulations are performed on a practical array antenna designed by the high-frequency structure simulator software with high fidelity, and the results verify the effectiveness of this method.
Starting Page	591
Ending Page	593
Page Count	3
ISSN	00135194
Volume Number	54
e-ISSN	1350911X
Issue Number	Issue 9, May (2018)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/el/54/9
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/el.2017.3692
Journal	Electronics Letters
Publisher Date	2018-03-27
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Adaptive Array Restrict SFAP Antenna Array Bias Reduction Method Calibration Carrier Phase Computational Cost Data-oriented Calibration Method Frequency Bin Frequency Domain Frequency Domain Analysis High-frequency Structure Simulator Software High-precision Global Navigation Satellite System Receiver Interference Mitigation Capability Mathematical Analysis Measurement Bias Reduction Radio Navigation And Direction Finding Radio Receiver Ranging Code Phase Satellite Navigation SFAP-based GNSS Receiver Signal Denoising Signal Processing And Detection Space-time Adaptive Processing Spatial Frequency Adaptive Processing Spatial Temporal Adaptive Processing Tracking Loop Transfer Function
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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