Abstract: A system for determining position, velocity, time, and/or altitude of a vehicle of object using GNSS under a broad range of dynamic conditions. The system may utilize a plurality of antennas in some aspects. In some aspects, the system may operate in a differential mode incorporating a fixed or mobile base station. In some aspects, the system may be connected to a smart phone, tablet, or other mobile computing device.

Abstract: A tethered airborne electrical power generation system which may utilize a strutted frame structure with airfoils built into the frame to keep wind turbine driven generators which are within the structure airborne. The primary rotors utilize the prevailing wind to generate rotational velocity. Electrical power generated is returned to ground using a tether that is also adapted to fasten the flying system to the ground. The flying system is adapted to be able to use electrical energy to provide power to the primary turbines which are used as motors to raise the system from the ground, or mounting support, into the air. The system may then be raised into a prevailing wind and use airfoils in the system to provide lift while the system is tethered to the ground. The motors may then resume operation as turbines for electrical power generation. The system may be somewhat planar in that many turbines may have their rotors substantially in one or more planes or planar regions.