公开(公告)号：US11996874B1

公开(公告)日：2024-05-28

申请号：US18154288

申请日：2023-01-13

Applicant: L3Harris Technologies, Inc.

Inventor： David R. Keller ,  L. Andrew Gibson, Jr. ,  Alexander Kimani ,  Lance Lindsay

IPC: H04B1/10 ,  H04B1/12

CPC classification number: H04B1/1027 ,  H04B1/12

Abstract: Systems and methods comprising: receiving a signal (S) having a first interfering signal component (FISC); generating a replicated SOI (RSOI); and iteratively performing a process to obtain residual errors for FISC. The process involves: modifying an amplitude of RSOI; obtaining a reference signal (RS) by removing RSOI with the modified amplitude from S; analyzing frequency of RS to obtain an estimated carrier frequency and an estimated symbol rate for FISC; generating a remaining signal by removing, from FRS, a signal having the estimated carrier frequency and symbol rate; and determining a residual error of the remaining signal. Parameters for FISC are then set equal to the estimated carrier frequency and symbol rate that are associated with a lowest residual error. The parameters may be further refined in accordance with another process which involves iteratively modifying a symbol rate of FISC. Yet another process may be performed to determine filter parameters.