WO2022191795A1 - Radar-lidar quantique basé sur l'imagerie fantôme - Google Patents

Radar-lidar quantique basé sur l'imagerie fantôme Download PDF

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Publication number
WO2022191795A1
WO2022191795A1 PCT/TR2021/051643 TR2021051643W WO2022191795A1 WO 2022191795 A1 WO2022191795 A1 WO 2022191795A1 TR 2021051643 W TR2021051643 W TR 2021051643W WO 2022191795 A1 WO2022191795 A1 WO 2022191795A1
Authority
WO
WIPO (PCT)
Prior art keywords
photons
imaging
ghost
lidar
radar
Prior art date
Application number
PCT/TR2021/051643
Other languages
English (en)
Inventor
Kadir DURAK
Aydin Özyavaş
Original Assignee
Qubi̇tri̇um Teknoloji̇ Ltd. Şti̇.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qubi̇tri̇um Teknoloji̇ Ltd. Şti̇. filed Critical Qubi̇tri̇um Teknoloji̇ Ltd. Şti̇.
Publication of WO2022191795A1 publication Critical patent/WO2022191795A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO 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
    • G01S13/00—Systems 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
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/06—Systems determining position data of a target
    • G01S13/08—Systems for measuring distance only
    • G01S13/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
    • G01S13/34—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO 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
    • G01S13/00—Systems 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
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/89—Radar or analogous systems specially adapted for specific applications for mapping or imaging
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO 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
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/06—Systems determining position data of a target
    • G01S17/08—Systems determining position data of a target for measuring distance only
    • G01S17/32—Systems determining position data of a target for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
    • G01S17/34—Systems determining position data of a target for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO 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
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/88—Lidar systems specially adapted for specific applications
    • G01S17/89—Lidar systems specially adapted for specific applications for mapping or imaging

Definitions

  • the present invention relates to radar and lidar imaging systems.
  • the invention relates to a ghost imaging-based quantum radar and lidar developed for a ghost imaging-based quantum radar and lidar procedure in quantum imaging in the defense industry.
  • a radar is a device that detects the distant objects, and the speed, bearing and distance of these objects by means of radio wave reflections.
  • the radar utilizes electromagnetic energy pulses in a similar fashion to the reflection of a sound.
  • the energy carried by the radio waves reaches the object and returns after being reflected from the object.
  • a small part of the energy is reflected therefrom and returns to the radar. This returning part is referred to as “echo” as in the sound terminology.
  • the radar set uses the echo to detect the direction and distance of the reflecting object.
  • Radars are divided into two as airborne and marine radars according to their area of utilization. Airborne radars are used in military (strategic) meteorological, astronomic airports and airplanes. Marine radars are used in military and merchant ships. Radars can also be named according to the frequency band on which they operate. Radars are mainly used in aviation for detection and safety separation of the aircrafts by the approach control and field control units. Apart from this, there are radars used on airplanes to detect the other aircraft and meteorological events.
  • a quantum imaging system comprises a transmitter end, a receiver end and a quantum imaging unit; the transmitter unit comprises a pulse laser, a density modulator, a phase coder and an adjustable attenuator, which are regularly connected to each other; the receiver end comprises a phase decoder and two single photon detectors connected to the phase decoder respectively; and the quantum imaging unit comprises a first fiber optical coupler, a projection lens, a digital micro mirror device, a collecting lens and a second fiber optical coupler.
  • the system of the invention adopts a false state of light pulses to perform an imaging operation, thus an anti-interference ability can be effectively improved and the distortion of a target object imaging is prevented; the system adopts a phase coding scheme and has a higher stability than a polarization coding scheme; and in the meantime, the imaging efficiency is improved and the imaging time is shortened, thus a safer bit error rate threshold is achieved, and the interference inhibition is improved.
  • a quantum imaging system for the stated quantum radar and lidar there is disclosed a quantum imaging system for the stated quantum radar and lidar.
  • the quantum radar and lidar need to be developed so as to have a structure that can detect hidden objects.
  • the object of the invention is to develop a ghost imaging- based quantum radar and lidar, in which the problems in the existing structures are eliminated.
  • Another object of the invention is to provide a quantum ghost imaging through quantum entanglement.
  • Still another object of the invention is to create a quantum radar and lidar operating by using the entangled photons.
  • Another object of the invention is to obtain a ghost image of the object in addition to the object detection.
  • Still another object of the invention is to develop a radar or lidar that uses the quantum behavior of the entangled photons for the object detection and object imaging.
  • Another object of the invention is to develop a quantum radar and lidar, which can be used as part of any air, land, or marine defense system, and which obtain an image of the object by utilizing the quantum behavior of the entangled photons, in addition to detecting the presence of the object.
  • Figure-1 is a drawing of a representative embodiment of the invention.
  • the subject of the invention is a developed ghost imaging-based quantum radar and lidar.
  • the quantum ghost imaging radar system consists of: a laser module or an entangled photon source (1), a multi-pixel detector (2), a single photon detector (3), a time information module (4) and a telescope (5).
  • the produced signal and idle light beams are sent through two different routes.
  • the idle photons are directly sent to the multi-pixel detector (2), while the signal photons are sent to the searching telescope (5) for target detection.
  • the single photons that return after being reflected from the object (7) are directly sent to the single photon detector (3). Thereafter, the signals coming from the multi-pixel detector (2) and the single photon detector (3) are transmitted to a super computer (5) or control unit for the detection of the anti-correlation functions.
  • a coincidence value of the record of each pixel is mapped onto the active area of the multi-pixel detector (2).
  • the coincidence map of each pixel on the multi-pixel detector (2) recreates a two-dimensional silhouette of the target object.
  • the photon pairs are generated by a scattered photon source (1).
  • the idle (Signal) photons are sent to the multi-pixel detector (2).
  • the time information module (4) records the arrival times and position information of the idle (signal) photons.
  • the signal (idle) photons are sent to the searching telescope (5) for the object (7) detection.
  • the photons that returned after being reflected reach the single photon detector (3).
  • Both signals are sent to the super computer (6) or control unit to find the peak of the anti-correlation function. Thereafter, since the position of the photons is known, the ghost image of the detected object is obtained from the anti correlated photons. Due to the necessity of conservation of momentum between the entangled photons, the ghost mirror image of the object is obtained.
  • a quantum ghost imaging process has been used through quantum entanglement, yet there is no any type of a quantum radar and lidar that operates using the entangled photons.
  • Using the method of the invention not only the object (7) is detected, but also the ghost image of the object (7) can be obtained.
  • a radio frequency (RF) range is used in the entire process of the method in the radar systems used to take an image of the object.
  • RF radio frequency
  • the quantum behavior of the entangled photons is used for the object (7) detection and object (7) imaging.
  • Our invention provides an alternative solution to detect the hidden objects (7).
  • the conventional hidden object (7) detection technology has been used for the last 50 years.
  • these objects (7) can also be detected by the quantum radar and lidar technology.
  • our invention not only detects the presence of the object (7), but also obtains the image of the object using the quantum behavior of the entangled photons.
  • This invention can be used as a part of any air, land, or marine defense system.
  • Air defense systems do not have any radars for the detection of a hidden object (7).
  • the invention relates to radar imaging systems, characterized in that it comprises at least one entangled photon source (1) to create a quantum radar and lidar operating by using the entangled photons, at least one multi-pixel detector (2) enabling the use of quantum behavior of the entangled photons for object (7) detection and object (7) imaging, at least one single photon detector (3), and at least one super computer (5) or control unit to which the signals coming from the multi-pixel detector (2) and the single photon detector (3) are sent for the detection of the anti-correlation functions, in order to create a ghost imaging-based quantum radar and lidar which can obtain an image of an object while detecting the object (7) in quantum imaging in the defense industry.
  • It comprises at least one time information module (4) which records the arrival times and position information of the idle (signal) photons.
  • It comprises signal (idle) photons sent to the searching telescope (5) for the object (7) detection, a single photon detector (3) where the reflected and returned photons reach, a multi-pixel detector (2), and at least one super computer (6) or control unit to which both signals are sent to find the peak of the anti-correlation function.
  • It comprises at least one super computer (6) or control unit, wherein the ghost mirror image of the object is obtained from the anti-correlated photons, as the position of the photons is known, and because the momentum needs to be preserved between the entangled photons and the ghost mirror image of the object is obtained.
  • It comprises a laser module or an entangled photon source (1), a multi-pixel detector (2), a single photon detector (3), a time information module (4), and a telescope (5).
  • the invention is a ghost imaging-based quantum radar and lidar working algorithm, comprising the process steps of sending the idle photons directly to the multi-pixel detector (2), while the signal photons are sent to the searching telescope (5) for the target detection, directly sending the single photons that return after being reflected from the object (7) to the single photon detector (3), thereafter transmitting the signals coming from the multi-pixel detector (2) and the single photon detector (3) to a super computer (5) or control unit for the detection of the anti-correlation functions, mapping the coincidence value of the record of each pixel onto the active area of the multi-pixel detector (2), recreating the two-dimensional silhouette of the target object by the coincidence map of each pixel on the multi-pixel detector (2).
  • It comprises the process steps of sending said both signals to the super computer (6) or control unit to find the peak of the anti-correlation function, thereafter, obtaining the ghost image of the detected object from the anti-correlated photons as the position of the photons is known, and obtaining the ghost mirror image of the object due to the necessity of conservation of momentum between the entangled photons.

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Radar Systems And Details Thereof (AREA)

Abstract

L'invention concerne des systèmes d'imagerie radar, se caractérisant en ce qu'ils comprennent au moins une source de photons enchevêtrés (1) pour créer un radar-lidar quantique fonctionnant au moyen des photons enchevêtrés, au moins un détecteur multi-pixels (2) permettant l'utilisation d'un comportement quantique des photons enchevêtrés pour la détection d'objet (7) et l'imagerie d'objet (7), au moins un détecteur monophotonique (3), au moins un super-ordinateur (5) ou une unité de commande à laquelle sont envoyés les signaux provenant du détecteur multi-pixels (2) et du détecteur monophotonique (3) pour la détection des fonctions d'anti-corrélation, afin de créer un radar-lidar quantique basé sur l'imagerie fantôme, permettant d'obtenir une image d'un objet lors de la détection de l'objet (7) en imagerie quantique, dans le secteur de la défense.
PCT/TR2021/051643 2021-03-11 2021-12-30 Radar-lidar quantique basé sur l'imagerie fantôme WO2022191795A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2021/004662 2021-03-11
TR202104662 2021-03-11

Publications (1)

Publication Number Publication Date
WO2022191795A1 true WO2022191795A1 (fr) 2022-09-15

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107024693A (zh) * 2017-03-07 2017-08-08 西安交通大学 一种单发射体制的雷达关联成像方法
US20200400813A1 (en) * 2018-03-14 2020-12-24 Mitsubishi Electric Corporation Radar image processing device and radar image processing method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107024693A (zh) * 2017-03-07 2017-08-08 西安交通大学 一种单发射体制的雷达关联成像方法
US20200400813A1 (en) * 2018-03-14 2020-12-24 Mitsubishi Electric Corporation Radar image processing device and radar image processing method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
KADIR DURAK; NASER JAM; CAGRI DINDAR: "Object Tracking and Identification by Quantum Radar", ARXIV.ORG, CORNELL UNIVERSITY LIBRARY, 201 OLIN LIBRARY CORNELL UNIVERSITY ITHACA, NY 14853, 19 August 2019 (2019-08-19), 201 Olin Library Cornell University Ithaca, NY 14853 , XP081465278 *

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