Remote sensing of ranged-resolved profiles of atmospheric turbulence is necessary and important for many applications in
astronomical and adaptive optics communities. In order to obtain turbulence profiles in atmospheric boundary layer, a
device is developed and experiments has been carried out. In the experiments, laser guide stars are formed at several
successive altitudes by projecting pulsed laser, returned signals are received by two receiving telescopes and the images of
the returned signals are formed by a imaging device. Variance of centroids′ distance is derived from the images with two
spots at the same altitude and ranged-resolved profile of the variance is obtained. So, based on a inversion algorithm,
atmospheric turbulence profiles are retrieved from differential image motion variance of distance of centroids at various
altitudes. The structure constants of refractive index of atmosphere range from 10-14m-2/3 at lower altitudes to 10-16m-2/3 at
higher altitudes are remote sensed experimentally. The results show it is a effective method that combined laser guide stars
with differential image motion method and could sense atmospheric turbulence profiles remotely in real time.
A measurement system of Cn2 based on solar power device was developed and the performance of the system was given. The continuous measurement for 24 hours on the experimental spot was taken and the curves of Cn2 at different heights on one spot were acquired. The results of the experiments show that the system of Cn2 based on solar power device is effective and practical for the continuous measurement in the open air,especially in no electricity and unattended circumstances.
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.