In this paper, a 2D DOA estimator in arbitrary array geometry for massive MIMO has been analyzed and modeled based on low-complexity 2D Fourier domain
line search MUSIC algorithm.
Yasuno, "Fiber-based polarization-sensitive Fourier domain
optical coherence tomography using B-scan-oriented polarization modulation method," Optics Express, vol.
Wang, "Double image encryption based on random phase encoding in the fractional Fourier domain
," Optics Express, vol.
As a good method using the Fourier domain
for such the situation, an iterative Fourier transform method was presented in the GP (Gerchberg-Papoulis) algorithm , and the more development was presented in later .
The resulting completed (detruncated) sinogram (being optimized in the Fourier domain
) is reconstructed using any reconstruction algorithm that can be applied on nontruncated projection data, for example, the standard FBP framework.
If we set [mathematical expression not reproducible], from the traditional Poisson sum formula for g(t) in the Fourier domain
, that is, (1), we obtain
Rotation in the spatial domain causes rotation of the Fourier domain
by the same angle .
Optical encryption by double-random phase encoding in the fractional Fourier domain
In our study Fourier domain
(Optovue, RTVue, version 22.214.171.124) type of Optical Coherence Tomography machine was used to calculate Macular thickness.
Huber, "Megahertz OCT for ultrawide-field retinal imaging with a 1050 nm Fourier domain
mode-locked laser," Optics Express, vol.
H calculates grayscale intensity modified in Fourier domain
, E, using Fourier transform values applied over luminance and each of two chrominance channels.
Currently, two main types of OCT systems can be considered: Time-Domain OCT (TD-OCT) and Fourier Domain
OCT (FD-OCT)--that can be further divided in Spectral Domain OCT (SD-OCT) and Swept Source OCT (SS-OCT) as we will see [1,4].