Localization of wireless nodes

A method for localizing a wireless node comprising:

• synchronizing a respective time reference of a plurality of wideband spectrum-sensing units and a master transceiver, and storing a sensing location of each of the respective wideband spectrum-sensing units in a first memory;
• receiving by the master transceiver and each of the wideband spectrum-sensing units, a transmission from a slave transceiver;
• decoding by the master transceiver, a channel number, a channel start time and a channel end time from the transmission;
• receiving by each of the wideband spectrum-sensing units, from the master transceiver, the channel number, the channel start time and the channel end time of the transmission, wherein an acquisition window begins at the channel start time and ends at the channel end time;
• storing in a respective second memory, a plurality of respective wideband samples of the transmission received by each of the wideband spectrum-sensing units during the acquisition window, wherein each of the respective wideband samples are limited by a frequency range corresponding to the channel number;
• for each of the wideband spectrum-sensing units, correlating the wideband samples from the respective second memory with a corresponding plurality of reconstructed samples stored in the first memory to form a respective power delay profile of the transmission;
• and
• determining a slave location of the slave transceiver relative to the respective sensing locations of the wideband spectrum-sensing units by applying a Time Difference Of Arrival method to the respective power delay profiles.

A method for localizing a wireless node comprising:

• receiving by each of a plurality of wideband spectrum-sensing units, from a master transceiver, a channel start time and a channel end time of a transmission from a slave transceiver received by the master transceiver, wherein a sensing location of each of the wideband spectrum-sensing units is stored in a first memory, and each of the wideband spectrum-sensing units and the master transceiver is synchronized to a time reference;
• storing in a respective second memory, a plurality of respective wideband samples of the transmission received by each of the wideband spectrum-sensing units starting at the channel start time and ending at the channel end time, wherein each of the respective wideband samples are generated by an Analog to Digital Converter;
• for each of the wideband spectrum-sensing units, correlating the wideband samples from the respective second memory with a corresponding plurality of reconstructed samples stored in the first memory to form a respective power delay profile of the transmission;
• and
• determining a slave location of the slave transceiver relative to the respective physical locations of the wideband spectrum-sensing units by applying a Time Difference Of Arrival method to the respective power delay profiles.