论文信息 - Improved calibration procedure for six-port based precise displacement measurements

Improved calibration procedure for six-port based precise displacement measurements

In this paper an improved calibration procedure for six-port based displacement measurement radar is proposed. The entire system characterization is done only using several measurements of the target at known positions and no additional calibration standards are required. The proposed calibration has been experimentally verified for a six-port based displacement measurement radar operating at 24 GHz. The performed measurements within the target position range 0 - 18.75 mm prove a significant improvement of the accuracy with respect to the other reported algorithms.

[1] Robert Weigel,et al. I/Q imbalance compensation for Six-port interferometers in radar applications , 2014, 2014 44th European Microwave Conference.

[2] Robert Weigel,et al. Ultra-short-range, precise displacement measurement setup with a near field slot-line antenna and a dedicated spiral calibration , 2015, 2015 IEEE MTT-S International Microwave Symposium.

[3] Lin Li,et al. Software-Defined Six-Port Radar Technique for Precision Range Measurements , 2008, IEEE Sensors Journal.

[4] R. Weigel,et al. Promise of a Better Position , 2012, IEEE Microwave Magazine.

[5] Yong-Kweon Kim,et al. A Miniaturized Broadband Multi-State Reflectometer Integrated on a Silicon MEMS Probe for Complex Permittivity Measurement of Biological Material , 2013, IEEE Transactions on Microwave Theory and Techniques.

[6] Renato G. Bosisio,et al. A new direct millimeter wave six-port receiver , 2001, IMS 2001.

[7] Ke Wu,et al. A new 94-GHz six-port collision-avoidance radar sensor , 2004, IEEE Transactions on Microwave Theory and Techniques.

[8] R. G. Bosisio,et al. Calibration of Multiport Reflectometers by Means of Four Open/Short Circuits , 1982 .

[9] G. Engen. The Six-Port Reflectometer: An Alternative Network Analyzer , 1977 .