Passive system and method to determine distortion in an RF satellite chain
AssigneeThe DIRECTV Group, Inc.
InventorEduardo Cavanagh
Life of this patent
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Abstract
A system 10 that is used for analyzing a broadcast system includes a receiving device 60 that generates a baseband demodulated RF signal and digitizes the RF signal to form a digitized signal. A data capture module such as the IQ monitor board 90 is coupled to the receiving device 60 for acquiring samples of the digitized signal. A computer is communication with the data capture module. The computer processes the samples of the digitized signal to obtain a broadcast system response and an inverse broadcast system response. The display generates a display corresponding to the broadcast system response and the inverse system response.
Claims34
A system analyzing a broadcast system comprising:
- a receiving device generating a baseband demodulated RF signal and digitizing the RF signal to form a digitized signal;
- a data capture module coupled to the receiving device for acquiring samples of the digitized signal;
- a computer in communication with the data capture module, said computer processing the samples of the digitized signal to obtain a broadcast system response and an inverse broadcast system response;
- and
- a display generating a display corresponding to the broadcast system response and an inverse broadcast system response.
A method of analyzing a broadcast system comprising:
- generating a baseband demodulated RF signal;
- digitizing the RF signal to form a digitized signal;
- acquiring samples of the digitized signal to form digital signal samples;
- and
- processing the digitized signal samples to obtain a broadcast system response and an inverse broadcast system response.
Dependencies are inferred from the claim text.