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1. WO2020117430 - POSITION, NAVIGATION, AND TIMING (PNT) METHODS AND SYSTEMS

Publication Number WO/2020/117430
Publication Date 11.06.2020
International Application No. PCT/US2019/060879
International Filing Date 12.11.2019
IPC
G01S 1/04 2006.01
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
1Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
02using radio waves
04Details
G01S 5/00 2006.01
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
5Position-fixing by co-ordinating two or more direction or position-line determinations; Position-fixing by co-ordinating two or more distance determinations
G01S 5/02 2010.01
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
5Position-fixing by co-ordinating two or more direction or position-line determinations; Position-fixing by co-ordinating two or more distance determinations
02using radio waves
CPC
G01S 1/04
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
1Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
02using radio waves
04Details
G01S 1/042
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
1Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
02using radio waves
04Details
042Transmitters
G01S 1/0428
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
1Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
02using radio waves
04Details
042Transmitters
0428Signal details
G01S 1/24
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
1Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
02using radio waves
08Systems for determining direction or position line
20using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems
24the synchronised signals being pulses or equivalent modulations on carrier waves and the transit times being compared by measuring the difference in arrival time of a significant part of the modulations ; , e.g. LORAN systems
G01S 13/20
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
13Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
02Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
06Systems determining position data of a target
08Systems for measuring distance only
10using transmission of interrupted pulse modulated waves
20whereby multiple time-around echoes are used or eliminated
G01S 13/288
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
13Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
02Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
06Systems determining position data of a target
08Systems for measuring distance only
10using transmission of interrupted pulse modulated waves
26wherein the transmitted pulses use a frequency- or phase-modulated carrier wave
28with time compression of received pulses
284using coded pulses
288phase modulated
Applicants
  • RAYTHEON COMPANY [US]/[US]
Inventors
  • MILLER, Kenneth, V.
Agents
  • DURKEE, Paul, D.
  • DALY, Christopher, S.
  • DIMOV, Kiril, O.
  • MOFFORD, Donald, F.
  • ROBINSON, Kermit
  • MOOSEY, Anthony, T.
  • CROWLEY, Judith, C.
  • DOWNING, Marianne, M.
  • BLAU, David, E.
  • DUBUC, Marisa, J.
  • LANGE, Kristoffer, W.
Priority Data
16/676,82307.11.2019US
62/776,01606.12.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) POSITION, NAVIGATION, AND TIMING (PNT) METHODS AND SYSTEMS
(FR) PROCÉDÉS ET SYSTÈMES DE POSITION, DE NAVIGATION ET DE CADENCEMENT (PNT)
Abstract
(EN)
The present disclosure relates to position, navigation and timing (PNT) methods, systems, and transmitters. A method comprises receiving radio-frequency signals 135a-d from a plurality of virtual transmitters 130a-d and determining PNT information of a target object 140 based on information obtained from the RF signals. A system comprises a plurality of virtual transmitters and a receiver. The plurality of virtual transmitters is configured to transmit radio-frequency (RF) signals that include PNT information. The receiver is configured to determine PNT information of a target object based on the PNT information. A transmitter 105 comprises a high-frequency (HF) carrier generator, a waveform generator, and an antenna system. The waveform generator generates a waveform that includes PNT information. The antenna system transmits the HF carrier signal to generate a subject ionospheric duct. The antenna system is further configured to transmit the waveform through the ionospheric duct.
(FR)
La présente invention concerne des procédés, des systèmes et des émetteurs de position, de navigation et de cadencement (PNT). Un procédé comprend la réception de signaux de radiofréquence (135a-d) en provenance d'une pluralité d'émetteurs virtuels (130a-d) et la détermination d'informations PNT d'un objet cible (140) sur la base d'informations obtenues à partir des signaux RF. Un système comprend une pluralité d'émetteurs virtuels et un récepteur. La pluralité d'émetteurs virtuels sont conçus pour émettre des signaux radiofréquence (RF) qui contiennent des informations PNT. Le récepteur est conçu pour déterminer des informations PNT d'un objet cible sur la base des informations PNT. Un émetteur (105) comprend un générateur de porteuse à haute fréquence (HF), un générateur de forme d'onde et un système d'antenne. Le générateur de forme d'onde génère une forme d'onde qui contient des informations PNT. Le système d'antenne émet le signal de porteuse HF pour générer un conduit ionosphérique sujet. Le système d'antenne est en outre conçu pour émettre la forme d'onde à travers le conduit ionosphérique.
Also published as
Latest bibliographic data on file with the International Bureau