Abstract: A pseudolite device for providing navigation data, while denied or having limited access to satellite navigation signals for instance, may include a receiver for receiving, from each of a plurality of pseudolites, respective navigation data including an indication of an absolute position of a respective pseudolite and a time instance at which the navigation data is transmitted by the respective pseudolite. The pseudolite device may include a processor configured to determine an absolute position of the pseudolite device according to the navigation data received from each of the plurality of pseudolites, and a transmitter for broadcasting positioning data and transmission time data. The positioning data can include an indication of the determined absolute position of the pseudolite device and the transmission time data includes an indication of a time instance at which the positioning data is transmitted by the transmitter.

Abstract: A pseudolite device for providing navigation data, while denied or having limited access to satellite navigation signals for instance, may include a receiver for receiving, from each of a plurality of pseudolites, respective navigation data including an indication of an absolute position of a respective pseudolite and a time instance at which the navigation data is transmitted by the respective pseudolite. The pseudolite device may include a processor configured to determine an absolute position of the pseudolite device according to the navigation data received from each of the plurality of pseudolites, and a transmitter for broadcasting positioning data and transmission time data. The positioning data can include an indication of the determined absolute position of the pseudolite device and the transmission time data includes an indication of a time instance at which the positioning data is transmitted by the transmitter.

Abstract: A turbine assembly is provided. The turbine assembly includes a plurality of sails and a generator assembly configured to convert rotation thereabout to power. A brake assembly may be provided. The brake assembly may include a magnet assembly that rotates with rotation of the plurality of sails, a conducting plate initially spaced-apart from the magnet assembly, and an actuator for translating the conducting plate relative to the magnet assembly during rotation thereof to thereby induce eddy currents that create a magnetic field acting on the conducting plate to impart a retarding force to control the rotational speed thereof. A control module is configured to control the actuator to adjust the spacing between the magnet assembly and the conducting plate in order to maintain the turbine assembly at a predetermined speed.

Abstract: A turbine assembly is provided. The turbine assembly includes a plurality of sails and a generator assembly configured to convert rotation thereabout to power. A brake assembly may be provided. The brake assembly may include a magnet assembly that rotates with rotation of the plurality of sails, a conducting plate initially spaced-apart from the magnet assembly, and an actuator for translating the conducting plate relative to the magnet assembly during rotation thereof to thereby induce eddy currents that create a magnetic field acting on the conducting plate to impart a retarding force to control the rotational speed thereof. A control module is configured to control the actuator to adjust the spacing between the magnet assembly and the conducting plate in order to maintain the turbine assembly at a predetermined speed.

Abstract: A turbine assembly is provided. The turbine assembly includes a plurality of sails and a generator assembly configured to convert rotation thereabout to power. A brake assembly may be provided. The brake assembly may include a magnet assembly that rotates with rotation of the plurality of sails, a conducting plate initially spaced-apart from the magnet assembly, and an actuator for translating the conducting plate relative to the magnet assembly during rotation thereof to thereby induce eddy currents that create a magnetic field acting on the conducting plate to impart a retarding force to control the rotational speed thereof. A control module is configured to control the actuator to adjust the spacing between the magnet assembly and the conducting plate in order to maintain the turbine assembly at a predetermined speed.

Abstract: A turbine assembly is provided. The turbine assembly includes a plurality of sails and a generator assembly configured to convert rotation thereabout to power. A brake assembly may be provided. The brake assembly may include a magnet assembly that rotates with rotation of the plurality of sails, a conducting plate initially spaced-apart from the magnet assembly, and an actuator for translating the conducting plate relative to the magnet assembly during rotation thereof to thereby induce eddy currents that create a magnetic field acting on the conducting plate to impart a retarding force to control the rotational speed thereof. A control module is configured to control the actuator to adjust the spacing between the magnet assembly and the conducting plate in order to maintain the turbine assembly at a predetermined speed.