Abstract: An embodiment of the invention generally relates to an apparatus for deploying a segmented reflector antenna. The apparatus includes a plurality of segments that can be rigid or flexible where each segment is hinged to an adjacent segment on either longitudinal side. The apparatus also includes a base, a plurality of inner deployment beams, and a plurality of outer deployment beams. Each inner deployment beam connects an inner side of a respective segment to the base and having a folded position and an extended position. Each outer deployment beam connects an outside side of a respective segment to the base and has a folded position and an extended position. The plurality of segments in a hinged folded position in response to the plurality of inner deployment beams being in the folded position and the outer deployment beams being in the folded position.

Abstract: The small field-of-view (FOV) limitation of current coherent beam combiner technology is overcome, enabling beam combining over significantly larger fields of view. The system includes an input to receive an input wavefront, a local oscillator to generate a reference wavefront, and an optical combiner such as a beam splitter to combine the input wavefront and the reference wavefront to produce an output wavefront which is received by a detector. According to the invention, an optical element is supported to receive the reference wavefront and generate, in effect, a plurality of local oscillator point sources which provide a set of wavefronts that cover the required wider FOV. In the preferred embodiment, the optical element is a diffuser, and may optionally include a mechanism for rotating the diffuser to reduce speckle. In an alternative embodiment the optical element is a lenslet array.

Abstract: The small field-of-view (FOV) limitation of current coherent beam combiner technology is overcome, enabling beam combining over significantly larger fields of view. The system includes an input to receive an input wavefront, a local oscillator to generate a reference wavefront, and an optical combiner such as a beam splitter to combine the input wavefront and the reference wavefront to produce an output wavefront which is received by a detector. According to the invention, an optical element is supported to receive the reference wavefront and generate, in effect, a plurality of local oscillator point sources which provide a set of wavefronts that cover the required wider FOV. In the preferred embodiment, the optical element is a diffuser, and may optionally include a mechanism for rotating the diffuser to reduce speckle. In an alternative embodiment the optical element is a lenslet array.

Abstract: A method of driving a plurality of actuators comprising the steps of providing a plurality of actuators and a controller having drive output signals for driving said plurality of actuators. At least one multiplexer is provided between said controller and said plurality of actuators and driving said actuators using said controller drive output signals by causing said actuators to be energized and deenergized by mutiplexing through said multiplexer.

Abstract: Disturbing forces, such as linear forces or torques, exerted on a structural member 12 of an inertially servoed structural interface placed between two assemblies are nulled by the application of a responsive corrective inertial force or torque to the structural member. The force on the structural interface is sensed by a force sensor associated with the member. In an embodiment of the present invention for nulling linear disturbing translational forces, a servo control loop 18 is responsive to a linear translational force sensor and drives a linear actuator 22 that applies a corrective inertial linear translational force to the structural member 12 so as to null the force exerted thereon. In an embodiment of the present invention for nulling torsional disturbing forces, the servo loop 18 is responsive to a torsional force sensor 44 and drives a torque motor 42 that applies a corrective inertial torsional translational force to the structural member 12 so as to null the force exerted thereon.