Multiple signal receiver
AssigneeRockwell Collins, Inc.
InventorsDavid A. Gribble, Theodore J. Hoffmann, Jerzy K. Richter, Roger A Dana, Shannon D. Hauerwas
Life of this patent
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Abstract
The present invention is an apparatus and method for simultaneously processing multiple communication and navigation signals. An apparatus of the present invention may comprise a single receiver with a direct radio frequency (RF) sampling front end, a single analog to digital converter, a digital downconverter and a digital signal processor. In an embodiment of the invention, the receiver of the present invention may simultaneously process navigation signals in the 108-118 MHz band and communication signals in the 118-137 MHz band.
Claims18
A communications and navigational receiver, comprising:
- an antenna;
- a direct sampling radio frequency front end coupled to said antenna, the direct sampling radio frequency front end including a high pass filter with a cutoff frequency of 108 MHz and a low pass filter with a cutoff frequency of 137 MHz providing a digitized band between 108 MHz and 137 MHz;
- a single analog to digital converter coupled to an output of said radio frequency front end;
- a digital downconverter coupled to an output of said single analog to digital converter;
- and
- a digital signal processor coupled to the digital downconverter, wherein said antenna, said direct sampling radio frequency front end, said single analog to digital converter, said digital downconverter and said direct signal processor are configured for simultaneously processing at least three signals, said at least three signals being at least one of communication signals or navigation signals.
A communications and navigational receiver, comprising:
- an antenna, said antenna being configured for receiving signals with a frequency range of 108-137 MHz;
- a direct sampling radio frequency front end coupled to said antenna, said direct sampling radio frequency front end digitizing an entire band of said frequency range of 108-137 MHz and directly sampling received signals, the direct sampling radio frequency front end including a high pass filter with a cutoff frequency of 108 MHz and a low pass filter with a cutoff frequency of 137 MHz;
- a single analog to digital converter coupled to an output of said radio frequency front end;
- a digital downconverter coupled to an output of said single analog to digital converter;
- and
- a digital signal processor coupled to the digital downconverter, wherein said antenna, said direct sampling radio frequency front end, said single analog to digital converter, said digital downconverter and said direct signal processor are configured for simultaneously processing at least three signals, said at least three signals being at least one of communication signals or navigation signals.
A communications and navigational receiver, comprising:
- means for receiving signals, the receiving means being configured for receiving wireless signals from about 108-137 MHz;
- a direct sampling radio frequency front end coupled to said receiving means, said direct sampling radio frequency front end direct sampling signals received by said receiving means, the direct sampling radio frequency front end including a high pass filter with a cutoff frequency of 108 MHz and a low pass filter with a cutoff frequency of 137 MHz providing a digitized band between 108 MHz and 137 MHz;
- a single analog to digital converter coupled to an output of said radio frequency front end;
- a digital downconverter coupled to an output of said single analog to digital converter;
- and
- means for processing signals, said processing means receiving an output of said digital downconverter;
- wherein said receiving means, said direct sampling radio frequency front end, said single analog to digital converter, said digital downconverter and said processing means are configured for simultaneously processing at least three signals, said at least three signals being at least one of communication signals or navigation signals.
Dependencies are inferred from the claim text.