A typical Ground Moving Target Indicator (GMTI) radar specification includes the parameters Probability of Detection
(PD) - typically on the order of 0.85, and False Alarm Rate (FAR) - typically on the order of 0.1 Hz. The PD is
normally associated with a particular target 'size', such as Radar Cross Section (RCS) with perhaps some statistical
description (e.g. Swerling number). However, the concept of FAR is embodied at a fundamental level in the detection
process, which traditionally employs a Constant-FAR (CFAR) detector to set thresholds for initial decisions on whether
a target is present or not. While useful, such a metric for radar specification and system comparison is not without some
serious shortcomings. In particular, when comparing FAR across various radar systems, some degree of normalization
needs to occur to account for perhaps swath width and scan rates. This in turn suggests some useful testing strategies.