公开(公告)号：US11063563B1

公开(公告)日：2021-07-13

申请号：US16928343

申请日：2020-07-14

Applicant: Raytheon Company

Inventor： Edward M. Jackson ,  Phuoc T. Ho ,  David Wilson

IPC: H03F3/24 ,  H04L27/36 ,  H03F1/02

Abstract: An emitter identification system arranged to: receive a detected signal including one or more emitter signals from one or more emitters respectively where each of the emitter signals includes a unique signal characteristic related to a unique physical feature of a hardware structure associated with each of the emitters; apply a modulation signal to the detected signal to generate pulse in-phase and quadrature (IQ) data associated with the one or more emitter signals; extract one or more amplitude envelopes associated with the one or more emitter signals, where each amplitude envelope is related to the unique signal characteristic associated with each of the one or more emitters; estimate the unique signal characteristic of each of the one or more emitter signals; estimate a number of clusters related to a number of emitter signals; and identify each of the emitters by applying an unsupervised learning function.