Information resolution of joint detection-tracking systems

Resolution is a basic concept of radar systems and an extremely important aspect of their over-all performance. A new concept of information resolution, which is defined in the framework of information geometry, can be served as a new metric to measure the intrinsic similarities of the signal distributions and is optimal in the sense that it determines such resolution with respect to the underlying similitude that generate the manifold geometry. In this work, the realistic meaning of information resolution is presented by relating it to the radar signal detection process. A procedure for determining the minimum distinguishable threshold of the information resolution under the minimum probability of error criterion is discussed. An example of information resolution of basic ranging radar is presented to highlight the importance and insight of the information resolution for measurement systems in practical application, which gives a guideline for the detection and measurement extraction process of the joint detection-tracking systems, therefore dictates the system design philosophy.