公开(公告)号：US20210174689A1

公开(公告)日：2021-06-10

申请号：US16703121

申请日：2019-12-04

Applicant: BAE SYSTEMS Information and Electronic Systems Integration Inc.

Inventor： Peter Ladubec, JR.

IPC: G08G5/00 ,  G08G5/02

Abstract: Techniques are disclosed that are designed to transmit low power radio frequency (RF) signals that include location parameters of one or more ground-based objects. Example systems include at least one or more processors and RF circuitry. The one or more processors are configured to generate one or more digital signals having a given number of bits. In one of the digital signals, a first portion of the bits includes location information for a ground-based object, a second portion of the bits includes heading information associated with the ground-based object, and a third portion of the bits includes speed information associated with the ground-based object. A second digital signal can include the size of the ground-based object. The RF circuitry converts the one or more digital signals into RF signals and transmits the RF signals at a given periodic pulse rate.

公开(公告)号：US20200371201A1

公开(公告)日：2020-11-26

申请号：US16416409

申请日：2019-05-20

Applicant: BAE Systems Information and Electronic Systems Integration Inc.

Inventor： Peter Ladubec, JR.

IPC: G01S7/36 ,  G01S13/78

Abstract: Techniques are disclosed for determining the presence of pulse jams in an identification friend or foe (IFF) system. In an embodiment, a plurality of jamming pulse rates are determined. Each of the plurality of jamming pulse rates is a count of jamming pulses entering the IFF system during a corresponding integration period. Each of the plurality of jamming pulse rates is a count of jamming pulses associated with non-valid signals entering the IFF system. An average jamming pulse rate is computed based on the plurality of jamming pulse rates. The average jamming pulse rate is then compared against a pulse jam threshold to determine whether a pulse jam is present (or not present) in the IFF system.