Terahertz three-dimensional SAR imaging using time- And frequency-domain algorithms

• Terahertz (THz) SAR opens opportunity for some new applications, e.g., sub-mm localization based on 3D SAR imaging, that cannot be based on the conventional SAR operating at frequency ranges below THz. For 3D THz SAR imaging, the image formation algorithms play an important role. Two 3D SAR image formation algorithms, Range Migration (RM) operating in frequency domain and Backprojection (BP) operating in time domain are considered in this comparative study. The algorithms are first used to form 3D images from simulated THz SAR data. The comparison is then based on image quality measurements such as range and cross-range resolutions, and peak sidelobe ratio (PSLR). © 2021 IEEE.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik -- Signalbehandling (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)

Nyckelord

Algorithm

PSLR

Resolution

SAR

THz

Frequency domain analysis

Synthetic aperture radar

Comparative studies

Cross-range resolution

Frequency domains

Frequency ranges

Image quality measurement

New applications

SAR image formation

Time and frequency domains

Radar imaging

Publikations- och innehållstyp

ref (ämneskategori)

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