Device, system and method of wireless signal detection
First Claim
1. A detector comprising:
- a master auto-correlator having an output auto-correlation value representing correlation between values of an input signal at times separated by a first delay period, T1;
a slave auto-correlator having an output auto-correlation value representing correlation between values of the input signal at times separated by a second delay period, T2, different from the first delay period;
a first logic circuit; and
a second logic circuit;
the output auto-correlation values of the master and slave auto-correlators are applied to the first and second logic circuits respectively whereby the outputs of the logic circuits indicate whether the input signal is a communication signal intended for reception.
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Abstract
Some embodiments of the invention provide devices, systems and methods of wireless signal detection. For example, an apparatus in accordance with an embodiment of the invention includes a detector to determine whether an incoming input includes a wireless communication signal intended for reception, based on an operation applied to a first auto-correlation value and a second auto-correlation value, wherein the first auto-correlation value represents a correlation between values of the incoming input at times separated by a first delay period, and wherein the second auto-correlation value represents correlation between values of the incoming input at times separated by a second, different, delay period; the first delay period is not an integer multiple of the second delay period, and the second delay period is not an integer multiple of the first delay period.
18 Citations
9 Claims
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1. A detector comprising:
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a master auto-correlator having an output auto-correlation value representing correlation between values of an input signal at times separated by a first delay period, T1; a slave auto-correlator having an output auto-correlation value representing correlation between values of the input signal at times separated by a second delay period, T2, different from the first delay period; a first logic circuit; and a second logic circuit; the output auto-correlation values of the master and slave auto-correlators are applied to the first and second logic circuits respectively whereby the outputs of the logic circuits indicate whether the input signal is a communication signal intended for reception. - View Dependent Claims (2, 3, 4, 5)
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6. A method of detecting a communication signal intended for reception, the method comprising:
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performing a first auto-correlation of an input signal at times separated by a first delay period, T1, using a first auto-correlator, resulting in a first auto-correlation value; and performing a second auto-correlation of the input signal at times separated by a second delay period, T2, different form the first delay period, using a second auto-correlator, resulting in a second auto-correlation value; and determining whether the input signal is intended for reception based on applying the first and second auto-correlation values to logical circuits. - View Dependent Claims (7, 8, 9)
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Specification