Analysis of improved switching CFAR in the presence of clutter and multiple targets

In radar signal processing distinction of false targets from real targets and fixing their rate in different radar environments is desirable. In this paper, the Switching Constant False Alarm Rate (SCFAR) processor has been improved in order to fix the false alarm rate not only in a homogenous environment only with thermal noise but also in a non-homogenous environment, consisting clutter edge and multiple targets. The equations have been achieved by assuming the targets in Swerling I and closed form. The simulation results confirm that the introduced processor can fix the false alarm rate in both homogenous and non-homogenous environment with less detection loss. In addition, this method is simpler in implementation compared with other samples ordering processors.