The research on terahertz synthetic aperture detection arrays

Jie Chen; Bingnan Pei; Zhijun Niu; Zumin Wang

doi:10.1117/12.899554

11 August 2011 The research on terahertz synthetic aperture detection arrays

Jie Chen, Bingnan Pei, Zhijun Niu, Zumin Wang

Proceedings Volume 8195, International Symposium on Photoelectronic Detection and Imaging 2011: Terahertz Wave Technologies and Applications; 819507 (2011) https://doi.org/10.1117/12.899554
Event: International Symposium on Photoelectronic Detection and Imaging 2011, 2011, Beijing, China

Abstract

The detector array of THz synthetic aperture imaging system is consists of many individual detectors. At a specific distance, arranging the curvature of the detector array to match with wavefront can reduce the phase shift. There is not exist perfect detected object in reality. Given the specification resolution of a system, cut-off frequency is determined to design the longest baseline and to ensure an efficient coverage of the u-v plane. The shorter of the baseline, the more influence on u-v spectrum is. To be pointed out, throwing away the high frequency component can improve the resolution of the object. In this paper, by arranging the detector array to make the curvature of imaging array match with the wavefront and to throw away the high frequency component when the baselines are lost, the result of research proves the above way is right.

Citation Download Citation

Jie Chen, Bingnan Pei, Zhijun Niu, and Zumin Wang "The research on terahertz synthetic aperture detection arrays", Proc. SPIE 8195, International Symposium on Photoelectronic Detection and Imaging 2011: Terahertz Wave Technologies and Applications, 819507 (11 August 2011); https://doi.org/10.1117/12.899554

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