Ultra-wideband (UWB) receiver
AssigneeTexas Instruments Incorporated
InventorsAnuj Batra, Anand G. Dabak, Ranjit Gharpurey
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Abstract
System and method for maximizing a signal strength of a received signal pulse. A preferred embodiment comprises a self-adjusting correlator/integrator (for example, correlator/integrator 325) that uses no historical timing information. The self-adjusting correlator/integrator uses a plurality of simple correlators/integrators (for example, correlator/integrator 805) which are configured to process a received signal at various times surrounding the signal pulse's expected arrival. A comparator (for example, comparator 820) selects an output of the simple correlators/integrators with greatest magnitude.
Claims8
An ultra-wideband (UWB) receiver comprising:
- a signal input;
- a filter and amplifier unit (FAU) coupled to the signal input, the FAU containing circuitry to eliminate interferers and amplify a signal provided by the signal input to generate an input signal having a pulse with a specified magnitude;
- a self-adjusting pulse detector coupled to the FAU, the self-adjusting pulse detector comprising a plurality of correlation circuits operable to correlate the pulse with a desired signal at different times from each other, the self-adjusting pulse detector containing circuitry to select an output signal from one of the plurality of correlation circuits having a highest relative correlation value;
- and
- a baseband processor coupled to the self-adjusting pulse detector, the baseband processor containing circuitry to equalize and decode a data stream in the selected output signal provided by the self-adjusting pulse detector.
Dependencies are inferred from the claim text.