Synthetic aperture antenna procedure for a SFCW sensor

The use of electromagnetic waves for detection of shallowly buried objects has some advantages over other types of detection systems. The most important is the fact that the detection process can be remote controlled, so the risks associated with this activity can be minimized. Also an airborne radio sensor can scan a larger surface with a higher speed. Any detection process supposes a certain accuracy which has to provide the location of the object as precise as possible. In the case of an electronic device the interface between the propagation media and the device is assured by the antenna systems, which plays a critical role for the system resolution. The paper describes a simple procedure to create a synthetic aperture antenna by using the data acquired with a moving transmitting and receiving antenna system.