REMOTE INTERFERENCE CANCELLATION FOR COMMUNICATIONS SYSTEMS
First Claim
1. A system for cancelling interference, the system comprising:
- an interference estimation processor configured to estimate an interference signal received from a remote and unknown location; and
an interference cancellation processor configured to;
receive the estimated interference signal and a combined signal that includes a combination of the interference signal and a signal of interest (SOI),variably attenuate and variably time delay one or more of the interference signal or the combined signal,convert the estimated interference signal and the combined signal to optical signals, andcancel at least one portion of the interference signal from the combined signal based on the estimated interference signal.
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Accused Products
Abstract
An interference cancellation system (ICS) may be used with a communication system to prevent or minimize interference from one or more sources. The ICS may receive radio frequency (RF) signals comprised of one or more signals of interest (SOI) and multiple interfering signals. An interference estimation processor (IEP) may be used to estimate the one or more interfering signals. The interfering signals may be estimated using spatial and/or time diversity, which may be combined with statistical methods. The estimated interfering signals may be sent to the ICS, which may use the estimated interference signal to cancel the interference and output the SOI.
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Citations
5 Claims
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1. A system for cancelling interference, the system comprising:
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an interference estimation processor configured to estimate an interference signal received from a remote and unknown location; and an interference cancellation processor configured to; receive the estimated interference signal and a combined signal that includes a combination of the interference signal and a signal of interest (SOI), variably attenuate and variably time delay one or more of the interference signal or the combined signal, convert the estimated interference signal and the combined signal to optical signals, and cancel at least one portion of the interference signal from the combined signal based on the estimated interference signal. - View Dependent Claims (2, 3, 4, 5)
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Specification