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Proceedings Paper

A photonic approach to microwave/millimeter-wave frequency measurement with extended range based on phase modulation
Author(s): Xuiyou Han; Nuannuan Shi; Siteng Zhang; Meng Wang; Yiying Gu; Mingshan Zhao
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Paper Abstract

Instantaneous frequency measurement (IFM) of input unknown microwave signals is critical importance for modern radar warning receivers in the field of electronic warfare. The photonic techniques have attracted more and more attentions for IFM due to the advantages of wide bandwidth, low loss, light weight, and immunity to electromagnetic interference. In this paper, a photonic approach to IFM with extended range based on phase modulation is presented. In the proposed measurement system, two optical wavelengths and two segment dispersion fibers are used to construct the frequency-dependent amplitude comparison functions (ACFs). Several ACFs can be jointly utilized to determine the microwave frequency without ambiguities beyond a monotonic region of the conventional one ACF. Then the measurable range of microwave frequency can be extended and the accuracy can be improved by selection of ACF with large slope. The operation principle of the photonic approach is illustrated and the experiment results show that the errors are limited within ±0.15 GHz from 8 to 20GHz frequency measurement range.

Paper Details

Date Published: 5 December 2012
PDF: 7 pages
Proc. SPIE 8562, Infrared, Millimeter-Wave, and Terahertz Technologies II, 85620H (5 December 2012); doi: 10.1117/12.999355
Show Author Affiliations
Xuiyou Han, Dalian Univ. of Technology (China)
Nuannuan Shi, Dalian Univ. of Technology (China)
Siteng Zhang, Dalian Univ. of Technology (China)
Meng Wang, Dalian Univ. of Technology (China)
Yiying Gu, Dalian Univ. of Technology (China)
Mingshan Zhao, Dalian Univ. of Technology (China)

Published in SPIE Proceedings Vol. 8562:
Infrared, Millimeter-Wave, and Terahertz Technologies II
Cunlin Zhang; Xi-Cheng Zhang; He Li; Sheng-Cai Shi, Editor(s)

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