Radar systems are systems that use radio frequency (RF) waves to derive information about targets, if any, in a region of interest. An RF pulse may be transmitted into the region of interest and, if a target exists in the path of the pulse, reflected energy will be returned to the radar. The radar may then analyze the reflected signal (and possibly other reflected signals) to determine information about the target. Radar systems are used in a wide variety of different applications involving a variety of different target types. For example, as air traffic control radar may detect and track aircraft about an airport to support air traffic controllers. Likewise, a weather radar may be used to detect and track potentially harmful weather formations in a region of interest. An early warning radar (EWR) may be used to, for example, detect and track incoming enemy missiles and/or aircraft as early as possible to allow counter measures to be deployed before arrival thereof.
Depending on application, it may be very important to achieve accurate and reliable results in a radar system. For example, a missed detection or inaccurate target position/velocity in an EWR can have devastating results. Therefore, radar systems are often required to meet tight operational specifications to ensure reliability and accuracy. If a particular radar system does not meet, the specifications, changes may be required to the system design to bring it within specification.