摘要:
Apparatus for a satellite communication system, comprising: a processor arrangement to monitor a plurality of frequency channels demultiplexed from a signal comprising one or more carriers, identify at least one frequency channel of the plurality of frequency channels comprising interference and remove the at least one identified frequency channel before the one or more carriers are reformed. By removing the frequency channels comprising interference, the signal-to-noise ratio of a carrier can be improved. Also, if the interference occurs within a carrier, the carrier is usable as long as the removed frequency channels are considerably narrower than the carrier.
摘要:
A telecommunications satellite payload processing system having one or more identical generic integrated processor modules is provided. The number of integrated processor modules can be selected in accordance with the antenna and bandwidth characteristics of a specified mission uplink and downlink in relation to the characteristics of the integrated processor module.
摘要:
A telecommunications satellite payload processing system having one or more identical generic integrated processor modules is provided. The number of integrated processor modules can be selected in accordance with the antenna and bandwidth characteristics of a specified mission uplink and downlink in relation to the characteristics of the integrated processor module.
摘要:
A digital signal processor that is required to process a large number of narrowband analog input or output signals. Analog processing is performed to combine multiple analog signals together (with non-overlapping frequency bands) into a composite signal which is fed to a single analog to digital converter. These signals come from different sources and would in a conventional implementation use individual converters. Analog signal processing is used outside of the digital signal processor and digital processing is used inside to enable the original analog signals to be reconstructed in the digital domain in the same format as if individual converters have been used. A similar technique can be applied to digital to analog conversion interfaces where a digital combining operation is performed to combine digital sub-band signals into a single composite signal, prior to input to a single digital-to-analog (DAC) converter for conversion to the analog domain and subsequently to an analog splitter device for separation into a plurality of analog signals. Hence, the technique can be implemented in both transmitter and receiver systems.