公开(公告)号：US20190020367A1

公开(公告)日：2019-01-17

申请号：US15626688

申请日：2017-06-19

Applicant: BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC.

Inventor： ANTHONY J. CRAWFORD ,  CHRISTOPHER N. PETERS ,  NATHANIEL J. CONWAY ,  KURT M. FOLEY ,  JOHN C. JOSEPH ,  MASON TREMBLAY ,  DANIEL W. GLASS

IPC: H04B1/16 ,  H04B1/26 ,  H03H7/32 ,  H03H11/04

CPC classification number: H04B1/1638 ,  H03H7/325 ,  H03H11/04 ,  H03K9/06 ,  H04B1/26

Abstract: An apparatus for monitoring radio frequency (RF) signals is disclosed. The apparatus includes an RF splitter, a set of track-and-hold circuits, a set of analog-to-digital circuits (ADC) and a frequency tracking module. The RF splitter splits a set of incoming RF signals into multiple RF signal paths. Each of the track-and-hold circuits, which is clocked at a different frequency than others, samples the incoming RF signals from a respective one of the RF signal paths. Each of the ADCs receives the sampled data from a respective one of the track-and-hold circuits. Each of the ADCs is also clocked at same frequency as a corresponding one of the track-and-hold circuits. The frequency tracking module determines a frequency of the incoming RF signals.