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US 2004/0165656 A1Published application
Correlation detection improvement by averaging spread spectrum signals
AssigneeThomson Licensing
InventorsDong-Chang Shiue, David Emery Virag
Life of this patent
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Abstract
There is provided a correlation method for spread spectrum signals. Correlation peaks in packet headers included in the spread spectrum signals are detected by averaging known signals that repeat in the packet headers. Data corresponding to the spread spectrum signals is recovered based on the correlation peaks.
Claims23
A correlation method for spread spectrum signals, comprising the steps of:
- detecting correlation peaks in packet headers included in the spread spectrum signals by averaging known signals that repeat in the packet headers;
- and
- recovering the spread spectrum signals based on the correlation peaks.
A correlation method for spread spectrum signals, comprising the step of:
- correlating the spread spectrum signals to obtain correlation values therefore;
- assigning the correlation values to a plurality of bins;
- averaging the correlation values in the plurality of bins to obtain averaged correlation values for the plurality of bins;
- detecting peaks in the averaged correlation values;
- and
- generating a bit stream corresponding to the spread spectrum signals, based on the peaks and an average of known signals that repeat in packets headers included in the spread spectrum signals.
3 more elements
An apparatus for correlating spread spectrum signals, comprising:
- an integrator for detecting correlation peaks in packet headers included in the spread spectrum signals by averaging known signals that repeat in the packet headers;
- and
- a recovery circuit for recovering data corresponding to the spread spectrum signals based on the correlation peaks.
An apparatus for correlating spread spectrum signals, comprising:
- a correlator for correlating the spread spectrum signals to obtain correlation values therefor and for assigning the correlation values to a plurality of bins;
- an integrator for averaging the correlation values in the plurality of bins to obtain averaged correlation values for the plurality of bins;
- a detector for detecting peaks in the averaged correlation values;
- and
- a decoder for generating a bit stream corresponding to the spread spectrum signals, based on the peaks and an average of known signals that repeat in packets headers included in the spread spectrum signals.
2 more elements
Dependencies are inferred from the claim text.