DSAL (Differential synthetic aperture ladar) eliminates the phase disturbance caused by atmospheric turbulence and mechanical trembling based on hardware structures. With proper hardware settings, DSAL can effectively reconstruct the phase history data without phase error, making them promising applications in far-distance ladar imaging. However, the final image quality is reduced when the field of view between the right sub-aperture and left sub-aperture at adjacent azimuth sampling position mismatches. In this paper, we derive an analytical modal for the DSAL imaging process with sub-aperture field of view mismatching and simulate the process with three targets. We introduce a factor to characterize the field of view mismatching and simulate the reconstructed image quality under different values. The results show that in practical applications, we should avoid the sub-aperture field of view mismatching, e.g., by controlling the azimuth sampling interval setting and improving stability of the ladar platform, making full use of DSAL’s advantages in far-distance ladar imaging.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
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.