Elta Systems Ltd.

Nir Tidhar

Antenna system comprising processor/s in data communication with receiving segment/s in motion on ground and computer memory accessible to processor which stores a computer representation indicative of desirable polarization behavior parameter/s of the airborne transmitting segment, for each relative location of the airborne and ground segments, the processor providing a current relative location of the airborne transmitting and receiving segment/s on the ground, accessing a desirable polarization behavior parameter associated with the current relative location of the airborne and receiving segment/s on ground from the computer representation, accessing a current polarization behavior parameter of the receiving segment/s' antenna, computing a real time adjustment of the polarization's axial ratio which, if applied to the receiving segment antenna, will change the receiving segment antenna's polarization behavior parameter from the current polarization behavior parameter to the stored one, and feeding the real time adjustment to the receiving segment antenna.

Antenna system, method and computer program product, with real time axial ratio polarization correction

The present disclosure provides a computer implemented method of providing an indicator useful for piloting an aircraft. The aircraft comprises an antenna configured to communicate with a transceiver. The method comprises: obtaining an antenna envelope characterizing directions relative to the aircraft for which a directive gain of the antenna exceeds a predetermined threshold; determining a direction of the transceiver relative to the aircraft; calculating a maneuvering range of the aircraft by comparing the antenna envelope and the transceiver direction, wherein the maneuvering range is indicative of eligible orientations of the aircraft for maintaining the transceiver within the antenna envelope; and outputting data indicative of the maneuvering range.

Systems for and methods of providing indicators useful for piloting an aircraft

The presently disclosed subject matter includes: calculating link-budget of at least one antenna on-board a vehicle with respect to at least one target antenna; the link-budget comprises a respective link-budget value assigned to each pixel in a collection of pixels, where each pixel in the collection of pixels represents a respective radiation vector in a three-dimensional space around the at least one antenna; determining for each pixel in the collection of pixels, compliance of the respective link-budget value with a sensitivity threshold value of the transceiver, thereby obtaining a respective antenna envelope of the at least one on-board antenna; displaying on a computer display device graphical representation of a pixel map representing at least the respective antenna envelope; continuously monitoring dynamics of the input data for repeatedly updating the pixel map, and displaying an updated graphical representation of the pixel map.

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Holon, Israel

Nir Tidhar