Discrimination Via Phased Derived Range

"Discrimination Via Phased Derived RangeDiscrimination of threat reentry vehicles (RVs) from debris, heavy replicas, and other penetration aids can be achieved by forming a radar image of the target. Phased Derived Range (PDR) signal processing techniques have been shown to be capable ofachieving extremely precise range measurements on individual target scatterers from coherent radar tracks. However, in the original formulations of the PDR equations the minor forces acting on the target were ignored. In actuality, the perturbations causedby these forces may provide additional information useful in discriminating threatening targets from non-threatening ones.Phase 1 of this task will be to identify the exoatmospheric forces acting on the target using standard formulations, taken from standard physics, to calculate their magnitude and to estimate their influence on target motions. These include the targetdynamics of precession, nutation, and rotation about its axis. Development of the modification terms for the PDR processing equations. As a byproduct of the identification of forces, data taken previous tests that pertain to PDR processing and measurementaccuracy will be determined and collected if possible. Platforms and tools for modeling the PDR processing technique in future phases will be determined.Commercialization StrategyThere are many military and commercial applications for Phase Derived Range (PDR). The key benefit is the l