Phased Array Imaging Simulation

Donald J Link

doi:10.1117/12.944331

9 June 1988 Phased Array Imaging Simulation

Donald J Link

Proceedings Volume 0892, Simulation and Modeling of Optical Systems; (1988) https://doi.org/10.1117/12.944331
Event: 1988 Los Angeles Symposium: O-E/LASE '88, 1988, Los Angeles, CA, United States

Abstract

A computer simulation of a phased array imaging system has been written. The OTF of an imaging system with a specified number of annular apertures can be computed directly by a convolution if there are no phase aberrations. If phase aberrations are to be included (piston, two axis tilt, focus, and uncorrelated aberrations for each subaperture), the OTF is computed via the point spread function. A two-dimensional scene is created from elementary shapes and transformed to the spatial frequency domain by a two-dimensional fast Fourier transform (FFT). The spectrum is multiplied by the optical transfer function (OTF) and by a function which accounts for pixel size and shape. After being properly scaled by a radiometry analysis the scene is transformed back to the spatial domain. Pixel fluxes are then computed and Poisson noise and detector noise are added.

Citation Download Citation

Donald J Link "Phased Array Imaging Simulation", Proc. SPIE 0892, Simulation and Modeling of Optical Systems, (9 June 1988); https://doi.org/10.1117/12.944331

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available