System and methods for remote sensing using double-sideband signals

A sensing system, comprising:

• a transceiver including
• a transmitter chain that transmits a double-sideband signal having a first frequency component and a second frequency component, and
• a receiving chain that receives the double-sideband signal after it is reflected by a target;
• and
• a baseband circuit for extracting information content from the received double sideband signal;
• wherein a separation between a first frequency of the first frequency component and a second frequency of the second frequency component causes a spike in a signal response generated by one sideband of the received double-sideband signal to substantially overlap a null point of a signal response generated by the other sideband of the received double-sideband signal.

A machine-readable storage medium, the storage medium comprising machine-directing instructions for:

• transmitting a double-sideband signal comprising a first frequency component and a second frequency component;
• and
• receiving the double-sideband signal after it is reflected by a subject;
• wherein a separation between a first frequency of the first frequency component and a second frequency of the second frequency components causes a spike in a signal response corresponding to one sideband of the received double-sideband signal to substantially overlap a null point of a signal response corresponding to the other sideband of the received double-sideband signal.