Procedure for jammer detection
AssigneeQUALCOMM Incorporated
InventorDouglas N. Rowitch
Life of this patent
Estimating the term…
Abstract
A method of and system for detecting whether a peak of a correlation function derived from a received signal is due to a jammer. The peak is within a localized portion of the correlation function which has a total number of peaks. In one embodiment, the total number of peaks is compared to a threshold number of peaks, and the peak is identified as being due to a jammer if the total number of peaks equals or exceeds a threshold number of peaks. In a second embodiment, the peak energy in relation to a noise estimate for the localized portion of the correlation function is compared to a jammer threshold. The peak is identified as being due to a jammer if the peak energy in relation to the noise estimate is less than or equal to the jammer threshold.
Claims17
A method of detecting whether a peak of a correlation function derived from a received signal is due to a jammer, said peak being within a localized portion of the correlation function having a total number of peaks, comprising:
- comparing the total number of peaks with a threshold number of peaks;
- and
- identifying said peak as being due to a jammer if the total number of peaks equals or exceeds the threshold.
A method of detecting whether a peak of a correlation function derived from a received signal is due to a jammer, the peak being within a localized portion of the correlation function having a noise estimate, and the peak having a peak energy, comprising;
- comparing the peak energy in relation to the noise estimate to a jammer threshold;
- and
- identifying the peak as being due to a jammer if the peak energy in relation to the noise estimate is less than or equal to the jammer threshold.
A method of detecting whether a peak of a correlation function derived from a received signal is due to a jammer, said peak being within a localized portion of the correlation function having a total number of peaks, comprising:
- a step for comparing the total number of peaks with a threshold number of peaks;
- and
- a step for identifying said peak as being due to a jammer if the total number of peaks equals or exceeds the threshold.
A method of detecting whether a peak of a correlation function derived from a received signal is due to a jammer, the peak being within a localized portion of the correlation function having a noise estimate, and the peak having a peak energy, comprising:
- a step for comparing the peak energy in relation to the noise estimate to a jammer threshold;
- and
- a step for identifying the peak as being due to a jammer if the peak energy in relation to the noise estimate is less than or equal to the jammer threshold.
Dependencies are inferred from the claim text.