Imaging systems and associated methods

An imaging system comprising:

• an antenna array comprising a plurality of transmit antennas and a plurality of receive antennas that are arranged along an at least substantially straight axis;
• wherein the transmit antennas are configured to emit electromagnetic energy towards a target imaging volume and the receive antennas are configured to receive reflections of the electromagnetic energy from the target imaging volume;
• wherein the transmit antennas and the receive antennas are located at a plurality of different positions along a scan path at different moments in time during the emission and reception of the electromagnetic energy;
• a transceiver coupled with the antenna array, wherein the transceiver is configured to control the emission of the electromagnetic energy from the transmit antennas and to output signals indicative of the reflections of the electromagnetic energy received via the receive antennas;
• a data acquisition system configured to sample the signals to provide radar data;
• and
• processing circuitry configured to:
• convert frequency data within the radar data to range data;
• for each of the different positions of the transmit and receive antennas, use the range data to determine a plurality of intermediate response values for a plurality of locations of the target imaging volume;
• and
• for each of a plurality of voxels of the target imaging volume, use a location of the respective voxel to identify one of the intermediate response values for each of the different positions of the transmit and receive antennas and use the identified response values to determine a final response value for the respective voxel;
• and
• wherein the final response values for the voxels comprise an image of the target imaging volume.