公开(公告)号：US09641280B1

公开(公告)日：2017-05-02

申请号：US14965758

申请日：2015-12-10

Applicant: Intelligent Fusion Technology, Inc

Inventor： Dan Shen ,  Gang Wang ,  Genshe Chen ,  Khanh D. Pham ,  Erik Blasch

IPC: H04B1/00 ,  H04K3/00 ,  H04B1/715 ,  H04B7/185

CPC classification number: H04K3/20 ,  H04B1/7143 ,  H04B1/715 ,  H04B7/18515 ,  H04B2201/71307

Abstract: Various embodiments provide an anti-jamming method in a satellite communication (SATCOM) system. A waveform modulation is performed on a waveform of a source data to provide a modulated waveform transmitted to a transmitter and then to a receiver. The modulated waveform transmitted from the receiver is demodulated to provide a demodulated waveform. In response to interference, a game reasoning process is performed on the demodulated waveform to provide an anti-jamming adaptive waveform. By performing a game-optimal waveform modulation on the anti-jamming adaptive waveform, a frequency hopping process is used to guide the data transmission, such that the source data is transmitted with a minimal probability of being interfered.

公开(公告)号：US20170214500A1

公开(公告)日：2017-07-27

申请号：US15163465

申请日：2016-05-24

Applicant: Space Systems/Loral, LLC

Inventor： William Hreha ,  David Grybos

IPC: H04L5/00 ,  H04W72/08 ,  H04W16/10 ,  H04W4/08 ,  H04B1/7136

CPC classification number: H04L5/0023 ,  H04B1/7136 ,  H04B7/18513 ,  H04B7/2041 ,  H04B2201/71307 ,  H04W4/08 ,  H04W16/10 ,  H04W72/0453 ,  H04W84/06

Abstract: A communication platform such as a spacecraft, airborne platform, or terrestrial line of site wireless platform is provided with adaptive digital beamforming. The satellite digitizes a full spectrum allocation for digital channelization. A channelization engine can determine a particular user or user group associated with an uplink signal. In this manner, the communication platform can apply different processing based on the user or group associated with a signal. For example, the communication platform receives uplink signals associated with a first user group and a second user group in one embodiment. The platform dynamically generates one or more spot beams for the first user group and the second group. The platform discriminates the uplink signals to apply frequency hopping for the downlink frequency channel assignments to the second user group while the downlink frequency channel assignments for the first user group remain fixed.