Interrogator and system employing the same

摘要

An interrogator and system employing the same. In one embodiment, the interrogator includes a receiver configured to receive a return signal from a tag and a sensing module configured to provide a time associated with the return signal. The interrogator also includes a processor configured to employ synthetic aperture radar processing on the return signal in accordance with the time to locate a position of the tag.

主权项

1. An interrogator, comprising:
a receiver configured to receive return signals from a tag; a sensing module configured to provide time estimates associated with said return signals; and a processor configured to employ synthetic aperture radar processing with a mismatched filter to enhance a resolution of a correlation peak on said return signals in accordance with said time estimates and an estimated velocity of said interrogator to coherently integrate said return signals to locate a position of said tag, said mismatched filter being formed with filter tap values that enhance an output signal-to-noise ratio of said mismatched filter while reducing peak sidelobes thereof.