Multi-tones narrow band RF noise elimination through adaptive algorithm
AssigneeNXP B.V.
InventorSujan Pandey
Life of this patent
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Abstract
Various embodiments relate to a device for reducing noise in a received signal, the device including a memory; a processor configured to: receive a signal containing narrow band noise which was transmitted over a channel and received at an analog front end; add two separate delays to the signal to generate a first delayed signal and a second delayed signal; apply an adaptive noise cancellation using the first delayed signal and the second delayed signal to estimate the narrow band noise; and remove the narrow band noise based upon the estimated narrow band noise.
Claims18
A device for reducing noise in a received signal, the device comprising:
- a memory;
- a processor configured to receive a signal containing narrow band noise which was transmitted over a channel and received at an analog front end, add two separate delays to the received signal to generate a first delayed signal and a second delayed signal, wherein the two separate delays are tuned to achieve correlation and the first delayed signal is cross-correlated with the second delayed signal, apply an adaptive noise cancellation using the first delayed signal and the second delayed signal to estimate the narrow band noise, and remove the narrow band noise based upon the estimated narrow band noise.
A method for reducing noise in a received signal, the method comprising:
- receiving a signal containing narrow band noise which was transmitted over a channel and received at an analog front end;
- adding two separate delays to the received signal to generate a first delayed signal and a second delayed signal, wherein the two separate delays are tuned to achieve correlation and the first delayed signal is cross-correlated with the second delayed signal;
- applying an adaptive noise cancellation using the first delayed signal and the second delayed signal to estimate the narrow band noise;
- and
- removing the narrow band noise based upon the estimated narrow band noise.
A non-transitory machine-readable storage medium encoded with instructions for execution of a method for reducing noise in a received signal, by a processor in a receiver comprising:
- instructions for receiving a signal containing narrow band noise which was transmitted over a channel and received at an analog front end;
- instructions for adding two separate delays to the received signal to generate a first delayed signal and a second delayed signal, wherein the two separate delays are tuned to achieve correlation and the first delayed signal is cross-correlated with the second delayed signal;
- instructions for applying an adaptive noise cancellation using the first delayed signal and the second delayed signal to estimate the narrow band noise;
- and
- instructions for removing the narrow band noise based upon the estimated narrow band noise.
Dependencies are inferred from the claim text.