ELEVATION ANGLE ESTIMATING DEVICE AND METHOD FOR USER TERMINAL PLACEMENT

摘要

A device and method for estimating the elevation angle of one or more objects surrounding a user terminal, include a light-collecting lens arrangement that collects sky scene light from a wide angle, an eyepiece lens arrangement that collimates the sky scene light collected by the light-collecting lens arrangement, and an elevation limit marking that is superimposed over the sky scene light. The elevation limit marking defines an elevation angle above a horizon of the earth that all the one or more objects in a field of view of the device must remain below so that the user terminal has an unobstructed view of the sky in all azimuthal directions.

主权项

1. A device for estimating the elevation angle of one or more objects surrounding a user terminal, the device comprising:
a light-collecting lens arrangement for collecting sky scene light from a wide angle; an eyepiece lens arrangement for collimating the sky scene light collected by the light-collecting lens arrangement; and an elevation limit marking superimposed over the sky scene light, the elevation limit marking defining an elevation angle above a horizon of the earth that all the one or more objects in a field of view of the device must remain below so that the user terminal has an unobstructed view of the sky in all azimuthal directions.