Cancellation System for Millimeter-Wave Radar
First Claim
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1. In a transceiver, a method comprising:
- identifying a leakage signal in a digital baseband received signal;
estimating the leakage signal;
synthesizing an estimated digital baseband leakage signal; and
subtracting the estimated digital baseband leakage signal from the digital baseband received signal.
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Abstract
In a millimeter-wave radar, full-duplex operation comprises identifying a leakage signal in a digital baseband received signal, estimating the leakage signal, synthesizing an estimated leakage signal, and subtracting the estimated leakage signal from the digital baseband received signal. The time interval during which the leakage signal occurs may be measured, and samples of the digital baseband received signal within the time interval are masked to remove the leakage.
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Citations
22 Claims
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1. In a transceiver, a method comprising:
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identifying a leakage signal in a digital baseband received signal; estimating the leakage signal; synthesizing an estimated digital baseband leakage signal; and subtracting the estimated digital baseband leakage signal from the digital baseband received signal. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A transceiver, comprising:
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a timer for measuring a time interval between transmitting a transmission signal and detecting a leakage signal in a digital baseband received signal; a detector for estimating the leakage signal; a synthesizer for synthesizing an estimated digital baseband leakage signal; and a canceller for subtracting the estimated digital baseband leakage signal from the digital baseband received signal. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A machine-readable medium comprising instructions encoded thereon and executable to:
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identify a leakage signal in a digital baseband received signal; estimate the leakage signal; synthesize an estimated digital baseband leakage signal; and subtract the estimated digital baseband leakage signal from the digital baseband received signal.
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14. In a transceiver, a method comprising:
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determining a time interval during which a leakage signal is present in a digital baseband received signal; generating samples of the digital baseband received signal; and masking a subset of the samples corresponding to the time interval for removing the leakage signal from the digital baseband received signal. - View Dependent Claims (15, 16, 17)
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18. A transceiver, comprising:
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a timer for measuring a time interval during which a leakage signal is present in a digital baseband received signal; a detector for generating samples of the digital baseband received signal; and a canceller for masking a subset of the samples corresponding to the time interval for removing the leakage signal from the digital baseband received signal. - View Dependent Claims (19, 20, 21)
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22. A machine-readable medium comprising instructions encoded thereon and executable to:
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measure a time interval during which a leakage signal is present in a digital baseband received signal; generate samples of the digital baseband received signal; and mask a subset of the samples corresponding to the time interval for removing the leakage signal from the digital baseband received signal.
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Specification