System and method for segmented frequency domain correlation with doppler binning
AssigneeRockwell Collins, Inc.
InventorRyan M. Murphy
Life of this patent
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Abstract
A communication system in a mobile platform receives a signal and applies a plurality of Doppler offsets within a range of potential Doppler offsets. Spectral analysis is performed for correlators in each of the Doppler offset signals, and a signal with a best correlation score is used to identify the actual Doppler offset of the signal. The signal is padded by some predetermined length and correlators are segmented. A polynomial interpolator corrects the sample rate for each one of the Doppler offsets signals.
Claims20
A computer apparatus in a mobile platform comprising:
- at least one antenna;
- and
- at least one processor in data communication with a memory storing processor executable code for configuring the at least one processor to:
- receive a signal via the at least one antenna;
- apply a plurality of Doppler offsets to the signal;
- associate each Doppler offset signal with a Doppler bin;
- and
- perform spectral analysis on each Doppler offset signal to identify at least one Doppler offset resulting in a highest correlator score.
A method comprising:
- receiving a signal;
- applying a plurality of Doppler offsets to the signal;
- associating each Doppler offset signal with a Doppler bin;
- and
- performing spectral analysis on each Doppler offset signal to identify at least one Doppler offset resulting in a highest correlator score.
A communication system in a mobile platform comprising:
- at least one antenna;
- and
- at least one processor in data communication with a memory storing processor executable code for configuring the at least one processor to:
- receive a signal via the at least one antenna;
- apply a plurality of Doppler offsets to the signal;
- associate each Doppler offset signal with a Doppler bin;
- and
- perform spectral analysis on each Doppler offset signal to identify at least one Doppler offset resulting in a highest correlator score.
Dependencies are inferred from the claim text.