Aiming at the optical design of free-form surface can effectively reduce the size of systemic structure and improve the imaging quality. Through the modulation transfer function diagram and point diagram, the rationality and superiority of the high-order aspheric lens design of the complex optical-mechanical system of aerial camera are analyzed. Based on the surface shape error caused by free-form surface optical elements in machining, the effects of surface error of free-form surface optical elements on the optical performance of complex optical-mechanical system are studied by ray tracing and wavefront fitting, and the influence law is revealed.
Select the initial structure of the optical system. On this basis, the initial structural parameters of the optical system are calculated, and the initial structure of the optical system is determined, and the optical performance of the initial structure is analyzed. The essence of the optimization of the optical system is the correction of aberration. Therefore, the optimization parameters are determined to optimize the design of the optical system and verify whether it can meet the imaging requirements.
Camera imaging quality is of great importance to aerial photography and space photography, especially in the field of military reconnaissance and telemetry of geographic resources. During the flight of the airborne camera, the image motion is caused by factors such as the flight speed and flight attitude of the aircraft, which will greatly reduce the image resolution and seriously affect the imaging quality of the camera. In this paper, it is analyzed that various factors of produce image motion in the imaging process of airborne camera, the imaging coordinate system of airborne camera is established, the mathematical model of image motion is established by using the homogeneous coordinate transformation method, and the function relation between the compensation angle of two-axes of the fast-steering mirror (FSM) and the image motion is obtained at last. By establishing a simulation model, the influence of aircraft flight attitude on the imaging quality of the camera is analyzed, which provides a basis for the image motion compensation strategy of airborne camera.
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.