Adaptive detection threshold for non-stationary signals in noise
OwnerCharles Kasimer SESTOK, IV, David Patrick MAGEE +1inventors
InventorsCharles Kasimer SESTOK, IV, David Patrick MAGEE, Tarkesh PANDE
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Abstract
Techniques for target input detection, including receiving input data, dividing the input data into data blocks, determining a detection feature value for a first data block, determining a detection threshold based on a set of detection feature statistics determined for a background sampling time period, and determining a target signal has been received based on a comparison between the detection feature value for the first data block to the detection threshold.
Claims20
A method for target input detection, comprising:
- receiving input data;
- dividing the input data into data blocks;
- determining a detection feature value for a first data block;
- determining a detection threshold based on a set of detection feature statistics determined for a background sampling time period;
- and
- determining a target signal has been received based on a comparison between the detection feature value for the first data block to the detection threshold.
A non-transitory program storage device comprising instructions stored thereon to cause one or more processors to:
- receive input data;
- divide the input data into data blocks;
- determine a detection feature value for a first data block;
- determine a detection threshold based on a set of detection feature statistics determined for a background sampling time period;
- and
- determine a target signal has been received based on a comparison between the detection feature value for the first data block to the detection threshold.
A detection circuit comprising:
- receiving circuitry configured to receive input data;
- windowing circuitry configured to divide the input data into data blocks;
- feature computation circuitry configured to determine a detection feature value for a first data block;
- adaptive threshold circuitry configured to determine a detection threshold based on a set of detection feature statistics determined for a background noise sampling time period;
- and
- detection circuitry configured to determine a signal has been received based on a comparison between the detection feature value for the first data block to the detection threshold.
Dependencies are inferred from the claim text.