Photonics based interference mitigation
First Claim
Patent Images
1. A method comprising:
- receiving for input into a non-linear device a radio signal, the radio signal being a composite signal composed of a signal of interest and an interfering signal, wherein the signal of interest and the interfering signal are at a common frequency;
controlling a power level of the radio signal received at the non-linear device so that the non-linear device provides a non-linear effect, wherein the non-linear device has a linear operating region and a non-linear region, wherein the controlling a power level of the radio signal received at the non-linear device includes operating the non-linear device in the non-linear region; and
processing an output signal output by the non-linear device to determine a characteristic of the signal of interest.
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Abstract
Methods and apparatus are set forth herein. Methods and apparatus can include for example: receiving for input into an non-linear device a radio signal, the radio signal being a composite signal composed of a signal of interest and an interfering signal, wherein the signal of interest and the interfering signal are at a common frequency; controlling a power level of the radio frequency input signal received at the non-linear device so that the non-linear device provides a non-linear effect; and processing an output signal output by the non-linear device to determine a characteristic of the signal of interest.
20 Citations
20 Claims
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1. A method comprising:
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receiving for input into a non-linear device a radio signal, the radio signal being a composite signal composed of a signal of interest and an interfering signal, wherein the signal of interest and the interfering signal are at a common frequency; controlling a power level of the radio signal received at the non-linear device so that the non-linear device provides a non-linear effect, wherein the non-linear device has a linear operating region and a non-linear region, wherein the controlling a power level of the radio signal received at the non-linear device includes operating the non-linear device in the non-linear region; and processing an output signal output by the non-linear device to determine a characteristic of the signal of interest. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An apparatus comprising:
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a non-linear device that receives a radio signal, the radio signal being a composite signal composed of a signal of interest and an interfering signal, wherein the signal of interest and the interfering signal are at a common frequency, the non-linear device having a linear operating region and a non-linear region; wherein the apparatus is configured to control a power level of the radio signal received at the non-linear device so that the non-linear device operates in the non-linear region to provide a non-linear effect; and wherein the apparatus is configured to process an output signal output by the non-linear device to determine a characteristic of the signal of interest.
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20. A method comprising:
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receiving for input into a non-linear device a radio signal, the radio signal being a composite signal composed of a signal of interest and an interfering signal, wherein the signal of interest and the interfering signal are at a common frequency; controlling a power level of the radio signal received at the non-linear device so that the non-linear device provides a non-linear effect; and processing an output signal output by the non-linear device to determine a characteristic of the signal of interest, wherein the interfering signal is a variable envelope interfering signal having a power level that varies over time, wherein the controlling a power level of the raio signal includes dynamically varying a gain of a variable gain amplifier so that the interfering signal received at the non-linear device is at a fixed envelope, wherein the dynamically varying a gain of a variable gain amplifier includes using an input received from a signal characterizing circuit, wherein the signal characterizing circuit performs processing of the radio signal that includes demodulating the radio signal and using extracted symbol information of the demodulated radio signal to determine one or more power envelope characteristics of the interfering signal.
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Specification