BEAM SUPER SURGE METHODS AND APPARATUS FOR SMALL GEOSTATIONARY (GEO) COMMUNICATION SATELLITES

    公开(公告)号:US20220060251A1

    公开(公告)日:2022-02-24

    申请号:US17520602

    申请日:2021-11-05

    摘要: Disclosed embodiments relate satellites using a Software-Defined Radio (“SDR”) system. In one example, a geostationary (GEO) satellite includes an antenna system including multiple antennas, each configured to provide a spot beam having an adjustable throughput for a terrestrial coverage area while the antenna is in an active state and the satellite is in orbit above the Earth, a front-end subsystem communicatively coupled to the antenna system having an input side including an input filter and an analog-to-digital converter, and an output side including an output filter and a digital-to-analog converter, and a software defined radio (“SDR”) communicatively coupled to the antenna system via the front-end subsystem. The SDR, in response to a surge modification request, modifies a throughput of each active antenna by increasing or decreasing a share of a satellite power budget allotted to the antenna by deactivating or activating a previously active or previously inactive antenna, respectively.

    Beam super surge methods and apparatus for small geostationary (GEO) communication satellites

    公开(公告)号:US11171718B2

    公开(公告)日:2021-11-09

    申请号:US16914423

    申请日:2020-06-28

    摘要: Disclosed embodiments relate satellites using a Software-Defined Radio (“SDR”) system. In one example, a geostationary (GEO) satellite includes an antenna system including multiple antennas, each configured to provide a spot beam having an adjustable throughput for a terrestrial coverage area while the antenna is in an active state and the satellite is in orbit above the Earth, a front-end subsystem communicatively coupled to the antenna system having an input side including an input filter and an analog-to-digital converter, and an output side including an output filter and a digital-to-analog converter, and a software defined radio (“SDR”) communicatively coupled to the antenna system via the front-end subsystem. The SDR, in response to a surge modification request, modifies a throughput of each active antenna by increasing or decreasing a share of a satellite power budget allotted to the antenna by deactivating or activating a previously active or previously inactive antenna, respectively.

    ADJUSTABLE PAYLOAD SYSTEM FOR SMALL GEOSTATIONARY (GEO) COMMUNICATION SATELLITES

    公开(公告)号:US20200177272A1

    公开(公告)日:2020-06-04

    申请号:US16699293

    申请日:2019-11-29

    IPC分类号: H04B7/185 H04B7/19 H04B7/204

    摘要: An adjustable payload for small geostationary communication satellites is disclosed. In an example, a communication satellite includes a payload system having a software defined payload that is configured to provide communication services. The software defined payload includes a processor for providing at least one of gain control per transponder and carrier/sub-channel, channelization, channel routing, signal conditioning or equalization, spectrum analysis, interference detection, regenerative or modem processing, bandwidth flexibility, digital beamforming, digital pre-distortion or power amplifier linearization, for at least one user slice for a plurality of user terminals and at least one gateway slice for a gateway station. The software defined payload also includes an input side and an output side for each slice. Each input side includes an input filter and an analog-to-digital converter and each output side includes an output filter and a digital-to-analog converter. The payload system also includes antennas communicatively coupled to the software defined payload.

    ADJUSTABLE PAYLOAD FOR SMALL GEOSTATIONARY (GEO) COMMUNICATION SATELLITES

    公开(公告)号:US20220173801A1

    公开(公告)日:2022-06-02

    申请号:US17676538

    申请日:2022-02-21

    IPC分类号: H04B7/185 H04B7/204 H04B7/19

    摘要: An adjustable payload for small geostationary communication satellites is disclosed. In an example, a communication satellite includes a payload system having a software defined payload that is configured to provide communication services. The software defined payload includes a processor for providing at least one of gain control per transponder and carrier/sub-channel, channelization, channel routing, signal conditioning or equalization, spectrum analysis, interference detection, regenerative or modem processing, bandwidth flexibility, digital beamforming, digital pre-distortion or power amplifier linearization, for at least one user slice for a plurality of user terminals and at least one gateway slice for a gateway station. The software defined payload also includes an input side and an output side for each slice. Each input side includes an input filter and an analog-to-digital converter and each output side includes an output filter and a digital-to-analog converter. The payload system also includes antennas communicatively coupled to the software defined payload.