Abstract:
A pointing apparatus for pointing an object at a target along a pointing axis, including a joint enabling at least yaw and pitch of the object with respect to a base, at least one actuator operative to effect the yaw and pitch of the object by effecting at least one of rotating the object about a first axis perpendicular to the pointing axis to form a first rotation angle, and rotating the object about a second axis perpendicular to both the pointing axis and the first axis, effecting a second rotation angle, where, while effecting at least one of a yaw angle and a pitch angle of the object, the object is concurrently rotated about the pointing axis at a roll angle corresponding to the yaw angle.
Abstract:
A method and a system for calculating a JCMA constellation for use in a JCMA communication system where the method includes a step of using maximum sum-rate mutual information criterion to select an optimal JCMA constellation for the number of transmitters N, SNR and modulation schemes used by the transmitters.
Abstract:
A pointing apparatus for pointing an object at a target along a pointing axis, including a joint enabling at least yaw and pitch of the object with respect to a base, at least one actuator operative to effect the yaw and pitch of the object by effecting at least one of rotating the object about a first axis perpendicular to the pointing axis to form a first rotation angle, and rotating the object about a second axis perpendicular to both the pointing axis and the first axis, effecting a second rotation angle, where, while effecting at least one of a yaw angle and a pitch angle of the object, the object is concurrently rotated about the pointing axis at a roll angle corresponding to the yaw angle.