Systems and methods operating a spotbeam satellite network to provide single frequency network broadcast and multicast services. One example embodiment provides a satellite broadcast system. The system includes an electronic processor communicatively coupled to a satellite and a user equipment. The electronic processor is configured to receive a plurality of bearer signals, each bearing identical broadcast program information. The electronic processor is configured to, for each of the plurality of bearer signals, generate one of a plurality of spotbeams for transmission by the satellite within a coverage area. The user equipment is configured to receive the bearer signals from a plurality of adjacent spotbeams of the plurality of spotbeams. The user equipment is configured to constructively utilize the bearer signals received from the plurality of adjacent spotbeams to decode the program information.

A payload subsystem of a satellite includes a plurality of transmit antenna feeds, a plurality of frequency filters, and a power amplification arrangement including a plurality of power amplifiers. The power amplification arrangement has at least one multiport amplifier, the multiport amplifier including a plurality of output ports, each output port coupled with a respective one of the plurality of transmit antenna feeds by way of a respective one of the plurality of frequency filters.

A method, a device, and a non-transitory storage medium are described in which a cellular device-satellite communications service is provided. The service may provide establishment, maintenance, and termination of uplink and downlink connections via a satellite network, a terrestrial network, and both based on network information and satellite information. The service may also provide scheduling for user plane traffic via the uplink and downlink connections.

An integrated analog to digital converting and digital to analog converting (ADDA) RF transceiver for satellite applications, configured to replace conventional analog RF down and up conversion circuitry. The ADDA RF transceiver includes one of more ADCs, DSPs, and DACs, all on a single ASIC. Further, the circuitry is to be radiation tolerant for high availability and reliability in the ionizing radiation environment present in the space environment.

An improved procedure and associated hardware to allow a satellite to switch antenna coverages according to predefined repetitive sequences and to align switching of the antenna sequence with ground data sequence switching. The principle of synchronisation of the sequence switching is based on the anticipation of the exact time at which change in beam hopping sequence occurs at the satellite, such that a change to a beam hopping sequence can be reflected in ground data sequence switching without losing connectivity between the satellite and ground segment.

A satellite signal reception device includes: a local signal generator that generates a signal while switching between a signal having a first local frequency corresponding to a first positioning satellite signal and a signal having a second local frequency corresponding to a second positioning satellite signal based on a reference clock signal; and a frequency converter that converts a reception signal of the first positioning satellite signal into a first intermediate frequency signal by multiplying the reception signal of the first positioning satellite signal by the signal having the first local frequency, and converts a reception signal of the second positioning satellite signal into a second intermediate frequency signal of which at least a part of a converted frequency band is in common with the first intermediate frequency signal multiplying the reception signal of the second positioning satellite signal by the signal having the second local frequency.

Disclosed are a multi-beam antenna system and a method of controlling an output power thereof. An embodiment of the present invention includes a beam forming network configured to receive a plurality of signals to be a plurality of beams, to divide each of the plurality of signals to a plurality of divided signals, and to output a plurality of excited signals by adjusting and combining amplitude and phase of each of the plurality of divided signals, an MPA set having a plurality of MPAs configured to receive corresponding excited signals among the plurality of excited signals from the beam forming network and to control output powers of the received excited signals according to communication traffic, and a feed array having a plurality of feeds configured to form a multi-beam by being excited according to the amplitude and phase of the excited signals from the MPA set.

System, method and application integrates secure, seamless and global telecommunications satellite system network with certain radiocommunications services providing two physically separate and electronically discrete wireless radio frequency (RF) broadband networks delivering terabit/sec data transfer rates per each satellite and combines redundant terrestrial fiber private networks to address atmospheric attenuation and system failures. The super speed satellite system (S4) with separate discreet network connectivity for both performance data and Internet signals resides on virtual cloud platform to support multiple mobile connectivity applications to access, monitor, track and relay RF multimedia signal transmissions in two modes: download or streaming enabling real time virtual “black box” signal transmissions of approximately 9.5 terabits/sec per satellite to/from any latitude or longitude between aircraft, and authorized S4 ground network operating centers (NOC). S4 telecommunication system includes phased array and synthetic aperture technologies to plot top-down virtual representation of objects moving through pre-defined airspace.

Systems, methods, and software described herein provide enhancements for orbital satellite platforms. In one example, an orbital satellite platform includes a plurality of satellite devices each comprising a virtualized execution system configured to execute one or more software payloads as associated virtual nodes. An active satellite device is provided among the plurality of satellite devices and is configured to execute at least an active virtual node, determine state information related to the execution of the active virtual node, and periodically update the state information in a storage satellite device. The storage satellite device is configured to select a level of statefulness for delivery of the state information to a peer satellite device designated as an operational backup for the active satellite device.

A satellite communication system processes a plurality of input signals to generate beamformed signals, drives a plurality of nonlinear power amplifiers with the beamformed input signals to produce RF signals for transmission; and transmits the RF signals with a plurality of Tx antenna elements. Conversion to and from linear signals to and from nonlinear or digitized signals is performed. Temporal or spatial decorrelation of the beamformed signals is employed to reduce the impact of intermodulation products. In some cases the power amplifiers are nonlinear, and can be one-sided or two-sided and produce two or three distinct output levels.