High-resolution three-dimensional laser radar with static unitary detector

Author

Mheen, Bongki ; Shim, Jea-Sik ; Oh, Myongsook S. ; Song, Jian ; Song, Min ; Choi, Gyu ; Seo, Hokuto ; Kwon, Y.-H.

Author_Institution

Electron. & Telecommun. Res. Inst. (ETRI), Daejeon, South Korea

Volume

50

Issue

4

fYear

2014

fDate

February 13 2014

Firstpage

313

Lastpage

315

Abstract

A new simple method to obtain real-time high-resolution three-dimensional (3D) images based on a static unitary detector (STUD) is reported. The STUD consists of a common bias network, a partitioned photodetector, a preamplifier array and a combiner, which makes it possible to easily increase the effective photo-detection area for a wider 3D image acquisition without affecting the ability to detect short laser pulses for high-resolution 3D images. From an implemented experimental prototype based on a STUD, the intensity and 3D images with a very high resolution (320 pixels × 240 pixels) were obtained. The achieved range resolution and the spatial resolution of remote 3D objects at 50 m were measured to be <;0.3 and 1.1 cm, respectively.

Keywords

arrays; image resolution; laser beam applications; optical radar; photodetectors; preamplifiers; 3D image acquisition; STUD; bias network; combiner; distance 50 m; high-resolution three-dimensional laser radar; range resolution; static unitary detector;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el.2013.3298

Filename

6746302