System and method for ultra-high-resolution ranging using RFID
Patent
·
OSTI ID:2541860
A radio-frequency method for range finding includes modulating a reference signal having an intermediate frequency to a downlink signal having a carrier frequency using a clock signal. The downlink signal is transmitted to a tag using a transceiver. An uplink signal backscattered front the tag is received and demodulated using the clock signal. The uplink signal has a frequency that is a harmonic of the carrier frequency. A distance between the tag and the transceiver is calculated based on a phase of the demodulated uplink signal. A system for range finding includes a transceiver and a processor. The transceiver modulates a reference signal to downlink signal and transmits the downlink signal. The transceiver receives and demodulates an uplink signal. The processor is configured to receive the demodulated uplink signal and calculate a distance between the tag and the transceiver using a phase of the demodulated uplink signal.
- Research Organization:
- Cornell University, Ithaca, NY (United States)
- Sponsoring Organization:
- USDOE Advanced Research Projects Agency - Energy (ARPA-E)
- DOE Contract Number:
- AR0000528; AR0000946
- Assignee:
- Cornell University (Ithaca, NY)
- Patent Number(s):
- 11,914,018
- Application Number:
- 17/900,480
- OSTI ID:
- 2541860
- Country of Publication:
- United States
- Language:
- English
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