Abstract: Techniques are described for precoded rate-splitting with multiple set-wise common messages for aggressive frequency reuse in a multi-beam satellites with co-channel interference. The satellite transmits private streams (PSs) to N user locations via spot beams. Embodiments identify K disjoint sets of the user locations (user groups) as being in adjacent spot beam coverage areas and having high channel vector collinearity. For each user group, data from the corresponding PSs is multiplexed to a respective set-wise common stream (SCS). PS precoders are each computed based on an associated target user location, and SCS precoders are each computed based on an associated target user group. The satellite allocates transmit power and transmits the N PSs and the K SCSs according to the PS beam weight vectors and the SCS beam weight vectors.

Abstract: An electroforming system and method for electroforming a component that includes a first housing and a second housing, where the second housing can define a conformable electroforming reservoir with a base structure. An electrically insulating sheet covers at least a portion of the base structure and defines a fluid passage where the component is to be located.

Abstract: An electroforming system and method for electroforming a component that includes a first housing and a second housing, where the second housing can define a conformable electroforming reservoir with a base structure that defines a fluid passage. The first housing can include a dissolution reservoir containing an electrolytic fluid that is fluidly coupled to the fluid passage of the second housing.

Abstract: Systems and methods for mitigating interference from a satellite gateway antenna are disclosed herein. In an embodiment, a method for mitigating interference from a satellite gateway antenna includes locating a satellite gateway antenna that shares a frequency band with a 5G service, determining that the satellite gateway antenna causes radiation that interferes with a base station operating using the 5G service, and mounting at least one panel to reduce the radiation in a direction of the base station operating using the 5G service.

Abstract: A method of electroforming a heat exchanger suitable. The method comprising providing a non-sacrificial carrier plate, providing a first sacrificial element and providing a second sacrificial element. The method comprising electroforming a duct over the first sacrificial element and electroforming a rail over the second sacrificial element. The method comprising removing the first sacrificial element and the second sacrificial element.

Abstract: A system and method for beamforming beams including: matching weights T to a distribution of resources for each of the beams based on a traffic variation for each of the beams; calculating, with a signal processor for each of the beams based on the weights T, a power scalar ? and a weighted minimum mean squared error (WMMSE) matrix WWMSE; and transmitting/receiving the beams based on the power scalar ? and the WMMSE matrix WWMSE, where the power scalar ? satisfies a total power constraint of an antenna subsystem.

Abstract: An electroformed heat exchanger suitable for use between rotating blades and seals in a stationary casing of a turbine engine. The heat exchanger comprising a non-electroformed carrier plate having a radial outer surface and a radial outer surface, an electroformed duct provided along the radial outer surface, an electroformed rail provided on the radial inner surface, and an electroformed stiffener formed by a portion of the electroformed duct and the electroformed rail.

Abstract: An apparatus and method are disclosed for mitigating pointing errors resulting from satellite antennas. Reports are received from terminals in a beam hopping satellite communication system, and a pointing error associated with a satellite antenna is determined. The best beam for communicating with each terminal is selected based on the pointing error. A beam list containing the instantaneous traffic demand of terminals for each beam in the system is generated. An active beam set is then selected from the beam list for transmitting data during the next hop in the satellite communication system.

Abstract: Various arrangements for a satellite-based forward link overlay are presented herein. In some embodiments, broadband data is modulated at a particular frequency, phase, and/or timing to create a broadband data signal. The frequency, phase, and/or timing are used to modulate a low-bandwidth data signal. The low-bandwidth data signal can then be combined with the broadband data signal and transmitted via satellite to a geographic region. A low-bandwidth receiver unit may determine the frequency, phase, and/or timing from the embedded broadband signal and use such information to demodulate and despread the low-bandwidth data signal.

Abstract: A system and method for scheduling a variable stayout distance when beam hopping, the method including providing an illumination area of a satellite and candidate beam centers disposed in the illumination area; measuring a respective scan angle from an antenna boresight to a respective beam center of the candidate beam centers; and determining a reuse factor k for each of the candidate beam centers, based on a proportion of the respective scan angle to a maximum scan angle. Each candidate beam center may be processed sequentially. Prior to adding each candidate beam center to a current beam center set, checking whether a candidate beam center meets the stayout distance criteria from all beam centers already in the beam center set.

Abstract: An electroforming system and method for electroforming a component that includes a first housing and a second housing, where the second housing can define a conformable electroforming reservoir with a base structure that defines a fluid passage. The first housing can include a dissolution reservoir containing an electrolytic fluid that is fluidly coupled to the fluid passage of the second housing.

Abstract: Various arrangements for a satellite-based forward link overlay are presented herein. In some embodiments, broadband data is modulated at a particular frequency, phase, and/or timing to create a broadband data signal. The frequency, phase, and/or timing are used to modulate a low-bandwidth data signal. The low-bandwidth data signal can then be combined with the broadband data signal and transmitted via satellite to a geographic region. A low-bandwidth receiver unit may determine the frequency, phase, and/or timing from the embedded broadband signal and use such information to demodulate and despread the low-bandwidth data signal.

Abstract: An electroformed heat exchanger suitable for use between rotating blades and seals in a stationary casing of a turbine engine. The heat exchanger comprising a non-electroformed carrier plate having a radial outer surface and a radial outer surface, an electroformed duct provided along the radial outer surface, an electroformed rail provided on the radial inner surface, and an electroformed stiffener formed by a portion of the electroformed duct and the electroformed rail.

Abstract: Various arrangements for a satellite-based forward link overlay are presented herein. In some embodiments, broadband data is modulated at a particular frequency, phase, and/or timing to create a broadband data signal. The frequency, phase, and/or timing are used to modulate a low-bandwidth data signal. The low-bandwidth data signal can then be combined with the broadband data signal and transmitted via satellite to a geographic region. A low-bandwidth receiver unit may determine the frequency, phase, and/or timing from the embedded broadband signal and use such information to demodulate and despread the low-bandwidth data signal.

Abstract: An apparatus and method are disclosed for mitigating pointing errors resulting from satellite antennas. Reports are received from terminals in a beam hopping satellite communication system, and a pointing error associated with a satellite antenna is determined. The best beam for communicating with each terminal is selected based on the pointing error. A beam list containing the instantaneous traffic demand of terminals for each beam in the system is generated. An active beam set is then selected from the beam list for transmitting data during the next hop in the satellite communication system.

Abstract: A system and method for scheduling a variable stayout distance when beam hopping, the method including providing an illumination area of a satellite and candidate beam centers disposed in the illumination area; measuring a respective scan angle from an antenna boresight to a respective beam center of the candidate beam centers; and determining a reuse factor k for each of the candidate beam centers, based on a proportion of the respective scan angle to a maximum scan angle. Each candidate beam center may be processed sequentially. Prior to adding each candidate beam center to a current beam center set, checking whether a candidate beam center meets the stayout distance criteria from all beam centers already in the beam center set.

Abstract: A system and method for scheduling a variable stayout distance when beam hopping, the method including providing an illumination area of a satellite and candidate beam centers disposed in the illumination area; measuring a respective scan angle from an antenna boresight to a respective beam center of the candidate beam centers; and determining a reuse factor k for each of the candidate beam centers, based on a proportion of the respective scan angle to a maximum scan angle. Each candidate beam center may be processed sequentially. Prior to adding each candidate beam center to a current beam center set, checking whether a candidate beam center meets the stayout distance criteria from all beam centers already in the beam center set.

Abstract: A method of determining a location of one or more sensors in a security system is provided. The method including: detecting a first wireless signal from a first sensor; determining a first signal strength of the first wireless signal; associating the first signal strength of the first wireless signal with a first location; detecting a second wireless signal from the first sensor; determining a second signal strength of the second wireless signal; associating the second signal strength of the second wireless signal with the second location; detecting a first sensor trigger using the first sensor; and determining that the first sensor trigger occurred at the second location.

Abstract: A system and method for beamforming beams including: matching weights T to a distribution of resources for each of the beams based on a traffic variation for each of the beams; calculating, with a signal processor for each of the beams based on the weights T, a power scalar ? and a weighted minimum mean squared error (WMMSE) matrix WWMSE; and transmitting/receiving the beams based on the power scalar ? and the WMMSE matrix WWMSE, where the power scalar ? satisfies a total power constraint of an antenna subsystem.

Abstract: A system and method for beamforming beams including: matching weights T to a distribution of resources for each of the beams based on a traffic variation for each of the beams; calculating, with a signal processor for each of the beams based on the weights T, a power scalar ? and a weighted minimum mean squared error (WMMSE) matrix WWMSE; and transmitting/receiving the beams based on the power scalar ? and the WMMSE matrix WWMSE, where the power scalar ? satisfies a total power constraint of an antenna subsystem.