Abstract: A method of automatically managing a center pivot irrigation machine comprising steps of: (a) providing at least one center pivot irrigation machine and positioning said center pivot irrigation machine such that said center pivot irrigation machine is movable within an irrigated plot around a center thereof; (b) providing a ground penetration radar; (c) mounting said ground penetration radar on said center pivot irrigation machine; (d) moving said center pivot irrigation machine about said center of said irrigated plot; (e) scanning said irrigated by said ground penetration radar at frequencies ranging between 200-1200 MHz; (f) calculating a distribution of soil moisture over a depth from a soil surface; and (g) creating an irrigation plan according to said distribution.

Abstract: A method of automatically managing a center pivot irrigation machine comprising steps of: (a) providing at least one center pivot irrigation machine and positioning said center pivot irrigation machine such that said center pivot irrigation machine is movable within an irrigated plot around a center thereof; (b) providing a ground penetration radar; (c) mounting said ground penetration radar on said center pivot irrigation machine; (d) moving said center pivot irrigation machine about said center of said irrigated plot; (e) scanning said irrigated by said ground penetration radar at frequencies ranging between 200-1200 MHz; (f) calculating a distribution of soil moisture over a depth from a soil surface; and (g) creating an irrigation plan according to said distribution.

Abstract: Systems and methods for providing one or more map segments to one or more vehicles are disclosed. In one implementation at least one processor is programmed to receive navigational information from a vehicle, the navigational information including an indicator of a location of the vehicle, an indicator of a speed of the vehicle, and an indicator of a direction of travel of the vehicle; analyze the received navigational information and determine a potential travel envelope for the vehicle; and send to the vehicle one or more map segments including map information for a geographical region at least partially overlapping with the potential travel envelope of the vehicle.

Abstract: Systems and methods are provided for autonomously navigating a vehicle along a road segment. In one implementation, a system includes at least one processor programmed to receive from a camera at least one image representative of an environment of the vehicle. The at least one image may be analyzed to identify at least one recognized landmark based upon one or more landmark group characteristics associated with a group of recognized landmarks. The current location of the vehicle relative to a predetermined road model trajectory associated with the road segment may be determined based, at least in part, on a predetermined location of the recognized landmark. An autonomous steering action for the vehicle may be determined based on a direction of the predetermined road model trajectory at the determined current location of the vehicle relative to the predetermined road model trajectory.

Abstract: Systems and methods are provided for autonomously navigating a vehicle along a road segment. In one implementation, a system includes at least one processor programmed to receive from a camera at least one image representative of an environment of the vehicle. The at least one image may be analyzed to identify at least one recognized landmark based upon one or more landmark group characteristics associated with a group of recognized landmarks. The current location of the vehicle relative to a predetermined road model trajectory associated with the road segment may be determined based, at least in part, on a predetermined location of the recognized landmark. An autonomous steering action for the vehicle may be determined based on a direction of the predetermined road model trajectory at the determined current location of the vehicle relative to the predetermined road model trajectory.

Abstract: An optical relay comprises a light-transmissive substrate having a plurality of diffractive optical elements, where at least one diffractive optical element is characterized by nonuniform diffraction efficiency. The substrate and diffractive optical elements are designed and constructed to relay at least a portion of a light beam emanating from an object to at least one predetermined eye-box in a manner such that for each point of the object, there is a set of parallel outgoing light rays originating from the point and arriving to the eye-box. The color difference between any two parallel light rays of the set is less than 50 ?E* units.