RADIO-FREQUENCY LOCALIZATION TECHNIQUES AND ASSOCIATED SYSTEMS， DEVICES， AND METHODS

A system comprising synchronization circuitry， a first interrogator， and a second interrogator. The first interrogator includes a transmit antenna; a first receive antenna， and circuitry configured to generate， using radio-frequency (RF) signal synthesis information received from the synchronization circuitry， a first RF signal for transmission by the transmit antenna， and generate， using the first RF signal and a second RF signal received from a target device by the first receive antenna， a first mixed RF signal indicative of a distance between the first interrogator and the target device. The second interrogator includes a second receive antenna， and circuitry configured to generate， using the RF signal synthesis information， a third RF signal; and generate， using the third RF signal and a fourth RF signal received from the target device by the second receive antenna， a second mixed RF signal indicative of a distance between the second interrogator and the target device.