Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

CIE International Conference on Radar (RADAR)

Research on Single-photon Passive Direction Finding Method

Pei Xian, Feng Wu, Yongzhuang Pu

Published Dec 15, 2021• 0 citations
Publisher

Abstract

The rapid development of quantum radar brings subversive challenges to radar countermeasures, the difficulty is reconnaissance. Aiming at the problems of quantum radar signal reception and passive direction finding at the present stage, this paper carried out research on quantum radar reconnaissance technology based on single photon measurement, proposed a passive direction finding method for quantum radar signal at the present stage, and verified the feasibility of the method through experiments and simulation calculation. This method solves the problem that the traditional passive direction finding technology is difficult to detect the quantum target signal, and can be effectively used for the detection and alarm of the quantum radar radiation source at this stage, which is of great significance in the fields of electronic countermeasures, environmental monitoring and space exploration.

DOI
10.1109/radar53847.2021.10027926

Related papers

Quantum detection theory and optimum strategy in quantum radar system

Shengzhi Zhao

As new concept radar combing quantum technology with radar technology, quantum radar is an extension of traditional radar theory and has the potential to break through the limit of conventional radar detection performance. We study quantum radar optimum decision strategies for various signal and background forms and compare them with traditional photon‐counting strategies. Quantum optimum strategy gives better detection probability with fixed false‐alarm probability, thus reducing needed signal strength to detect the target, but its validity strongly depends on exact knowledge of signal forms. We briefly discuss the influence of deviating signal amplitudes and phases, and find that in the condition that the false‐alarm probability is very small quantum optimum strategy is still useful when the signal form varies in a small region.

The Journal of Engineering•Sep 23, 2019•4 citations

A Study on Quantum Radar Technology Developments and Design Consideration for its integration

Manoj Mathews

This paper presents a study on quantum radar technology developments, design Consideration for its integration, and quantum radar cross-section, QRCS based on quantum electrodynamics and interferometric considerations. Quantum radar systems supported by quantum measurement can fulfill not only conventional target detection and recognition tasks but are also capable of detecting and identifying the RF stealth platform and weapons systems. The development of radar technology is of the utmost importance in many avenues of research. The concept of a quantum radar has been proposed which utilizes quantum states of photons to establish information on a target at a distance. A photon, or a little cluster of photons, is distributed towards the target. The photons are absorbed and reemitted from the target and into the receiver. The measurement process may be executed in two alternative ways. One can perform an interferometric measurement (or phase measurement) on the photon, or one can simply count the number of photons that return. the previous method is named Interferometric Quantum Radar, and therefore the latter method is termed Quantum Illumination. For either of those methods, one can use stationary quantum states of photons or use entangled states. Its been shown that entangled states provide the most effective possible boost in resolution, achieving within the ideal case. The benefit of using quantum states is that they exhibit extra degrees of correlation by which to get information compared to classical methods. These extra correlations (called quantum correlations) serve to boost the resolution and signal/noise (SNR) that may be achieved within the radar system.

arXiv:2205.14000•May 25, 2022•1 citation

The Performance Analysis of Quantum Illumination Radar

Huifang Li, Kai Wang, Kaibin Wang +1 more

Quantum radar based on the mechanism of quantum physics and the quantum information is a new sensing technology that was developed to solve technology bottleneck of classic radar. Especially, The Quantum illumination based on entanglement light beam could overcome noise and information loss. In this paper, the principle of quantum radar is introduced in detail, and the quantum illumination radar scheme using entangled photons is discussed. Then, target detection method based on entangled photons is given, and simulation results are showed. Finally, it is demonstrated by experiments that the performance of entangled photon detection system is superior to non-entangled photon detection system in a noisy and lossy environment, and the targets appear to look bigger when looked with low photon number.

International Conference on Network and Information Systems for Computers (ICNISC)•Apr 1, 2016•0 citations

Advancements And Performance Analysis of Q-Dots Based Quantum Radar Technology for RF Stealth Target Identification

Deepak Vats, Vishal Srivastava, Vasudev Grover

This Paper examines novel approach the advancements in Q-dots based quantum radar technology, design considerations for its integration, and quantum radar cross section (QRCS) based on interferometric and quantum electrodynamics. In addition to performing standard target detection and recognition duties, quantum radar systems with quantum measurement assistance may also detect and identify RF stealth platforms and missile systems. In numerous fields of study, the advancement of radar technology is crucial. A quantum radar is a notion that has been developed that uses photon quantum states to gather information about a distant target. A single photon or a small group of photons is directed in the direction of the target. The target absorbs the photons, which are then re-emitted into the receiver. There are two possible approaches to carrying out the measurement procedure. An interferometric analysis can be performed.one can either count the number of photons that return or perform a measurement (or phase measurement) on the photon. Since the latter technique is called Quantum Illumination, the former is called Interferometric Quantum Radar. Entangled states or stationary quantum states of photons can be used for either of those techniques. Entangled states have been demonstrated to offer the best resolution enhancement, reaching the optimum situation. Compared to classical approaches, the advantage of adopting quantum states is that they show more degrees of correlation via which information can be obtained. These additional correlations, sometimes referred to as quantum correlations, increase the radar system's potential resolution and signal/noise ratio (SNR). Relationship research between the two photons is conducted in order to gather data. Coherent state quantum radar relies on coherent state photons and a quantum detection technique to overcome the diffraction limit. The design and operating concepts of quantum applied trends are also reviewed in this work.

IEEE Recent Advances in Intelligent Computational Systems•Nov 20, 2025•0 citations

Analysis and Simulation of Quantum Scattering Characteristics of Target Based on Spatial Correlation

Naixuan Wei, Shitao Zhu

In the traditional radar, radar cross section (RCS) is used to represent the echo intensity that the target scattered. The modulation signals are used in the traditional radar systems to detect the targets based on principle of induced radiation, which makes the targets with geometric shape stealth design hard to detect. Quantum radar systems employ photons to detect targets. The processes of absorption and emission of photons follows the rules of quantum electrodynamics. The quantum scattering is not sensitive to the shape design of the targets, which can be used to enhance detection capability of radar system. Quantum radar cross section (QRCS) is used to analyze the performance of quantum radars. A computation method of QRCS based on spatial correlation is proposed in this paper to improve the performance of the quantum radar system. Multiple detectors are used to collect the quantum scattering signals of the target. The spatial correlation characteristics of scattered signals are extracted to represent the quantum scattering characteristics of the target. The randomness of atom-photon scattering process is efficiently used in this method, which can enhance detection capability of radar system. The method proposed in this paper is verified by numerical simulation. In addition, the multiphoton scattering of a typical three-dimensional target is studied in this paper. The results show that quantum radar with multiphoton as transmitting signal may have better detection capability. These results are of great significance to further study the quantum scattering characteristics of complex targets. The research of quantum radar system based on spatial correlation detection is a potential research direction especially for the stealth target detection.

Photonics & Electromagnetics Research Symposium (PIERS)•Nov 21, 2021•3 citations

Sensitivity Enhancement of Quantum Radar Using Entangled Single Photon Source for Military Defense Security

Simanchalo Panigrahi, T Jaganatha Patro

Quantum radar represents a promising advancement over classical radar systems by exploiting quantum mechanical phenomena such as entanglement and quantum measurement to overcome fundamental detection limitations. This paper reviews the evolution of radar technology from conventional radar frequency systems to quantum radar architectures, with emphasis on sensitivity enhancement and detection of RF-stealth targets for military defense applications. Classical radar parameters such as radar range, transmitted power and cross section are revisited and extended to their quantum analogues. The role of entangled single photon sources in improving detection performance under high noise and jamming environments is discussed. Context of microwave quantum radar is reviewed along with photonic implementations. This paper further highlights the importance of quantum measurement theory, including system-apparatus entanglement, density matrix formalism and wave function collapse in extracting information from quantum radar systems. Although significant experimental challenges remain, recent advances indicate strong potential for future development of quantum radar in next generation defense and surveillance systems.

International Conference on Air Defense and Security (ICADS)•Feb 12, 2026•0 citations
The rapid development of quantum radar brings subversive challenges to radar countermeasures, the difficulty is reconnaissance. Aiming at the problems of quantum radar signal reception and passive direction finding at the present stage, this paper carried out research on quantum radar reconnaissance technology based on single photon measurement, proposed a passive direction finding method for quantum radar signal at the present stage, and verified the feasibility of the method through experiments and simulation calculation. This method solves the problem that the traditional passive direction finding technology is difficult to detect the quantum target signal, and can be effectively used for the detection and alarm of the quantum radar radiation source at this stage, which is of great significance in the fields of electronic countermeasures, environmental monitoring and space exploration.
As new concept radar combing quantum technology with radar technology, quantum radar is an extension of traditional radar theory and has the potential to break through the limit of conventional radar detection performance. We study quantum radar optimum decision strategies for various signal and background forms and compare them with traditional photon‐counting strategies. Quantum optimum strategy gives better detection probability with fixed false‐alarm probability, thus reducing needed signal strength to detect the target, but its validity strongly depends on exact knowledge of signal forms. We briefly discuss the influence of deviating signal amplitudes and phases, and find that in the condition that the false‐alarm probability is very small quantum optimum strategy is still useful when the signal form varies in a small region.
This paper presents a study on quantum radar technology developments, design Consideration for its integration, and quantum radar cross-section, QRCS based on quantum electrodynamics and interferometric considerations. Quantum radar systems supported by quantum measurement can fulfill not only conventional target detection and recognition tasks but are also capable of detecting and identifying the RF stealth platform and weapons systems. The development of radar technology is of the utmost importance in many avenues of research. The concept of a quantum radar has been proposed which utilizes quantum states of photons to establish information on a target at a distance. A photon, or a little cluster of photons, is distributed towards the target. The photons are absorbed and reemitted from the target and into the receiver. The measurement process may be executed in two alternative ways. One can perform an interferometric measurement (or phase measurement) on the photon, or one can simply count the number of photons that return. the previous method is named Interferometric Quantum Radar, and therefore the latter method is termed Quantum Illumination. For either of those methods, one can use stationary quantum states of photons or use entangled states. Its been shown that entangled states provide the most effective possible boost in resolution, achieving within the ideal case. The benefit of using quantum states is that they exhibit extra degrees of correlation by which to get information compared to classical methods. These extra correlations (called quantum correlations) serve to boost the resolution and signal/noise (SNR) that may be achieved within the radar system.
Quantum radar based on the mechanism of quantum physics and the quantum information is a new sensing technology that was developed to solve technology bottleneck of classic radar. Especially, The Quantum illumination based on entanglement light beam could overcome noise and information loss. In this paper, the principle of quantum radar is introduced in detail, and the quantum illumination radar scheme using entangled photons is discussed. Then, target detection method based on entangled photons is given, and simulation results are showed. Finally, it is demonstrated by experiments that the performance of entangled photon detection system is superior to non-entangled photon detection system in a noisy and lossy environment, and the targets appear to look bigger when looked with low photon number.
This Paper examines novel approach the advancements in Q-dots based quantum radar technology, design considerations for its integration, and quantum radar cross section (QRCS) based on interferometric and quantum electrodynamics. In addition to performing standard target detection and recognition duties, quantum radar systems with quantum measurement assistance may also detect and identify RF stealth platforms and missile systems. In numerous fields of study, the advancement of radar technology is crucial. A quantum radar is a notion that has been developed that uses photon quantum states to gather information about a distant target. A single photon or a small group of photons is directed in the direction of the target. The target absorbs the photons, which are then re-emitted into the receiver. There are two possible approaches to carrying out the measurement procedure. An interferometric analysis can be performed.one can either count the number of photons that return or perform a measurement (or phase measurement) on the photon. Since the latter technique is called Quantum Illumination, the former is called Interferometric Quantum Radar. Entangled states or stationary quantum states of photons can be used for either of those techniques. Entangled states have been demonstrated to offer the best resolution enhancement, reaching the optimum situation. Compared to classical approaches, the advantage of adopting quantum states is that they show more degrees of correlation via which information can be obtained. These additional correlations, sometimes referred to as quantum correlations, increase the radar system's potential resolution and signal/noise ratio (SNR). Relationship research between the two photons is conducted in order to gather data. Coherent state quantum radar relies on coherent state photons and a quantum detection technique to overcome the diffraction limit. The design and operating concepts of quantum applied trends are also reviewed in this work.
In the traditional radar, radar cross section (RCS) is used to represent the echo intensity that the target scattered. The modulation signals are used in the traditional radar systems to detect the targets based on principle of induced radiation, which makes the targets with geometric shape stealth design hard to detect. Quantum radar systems employ photons to detect targets. The processes of absorption and emission of photons follows the rules of quantum electrodynamics. The quantum scattering is not sensitive to the shape design of the targets, which can be used to enhance detection capability of radar system. Quantum radar cross section (QRCS) is used to analyze the performance of quantum radars. A computation method of QRCS based on spatial correlation is proposed in this paper to improve the performance of the quantum radar system. Multiple detectors are used to collect the quantum scattering signals of the target. The spatial correlation characteristics of scattered signals are extracted to represent the quantum scattering characteristics of the target. The randomness of atom-photon scattering process is efficiently used in this method, which can enhance detection capability of radar system. The method proposed in this paper is verified by numerical simulation. In addition, the multiphoton scattering of a typical three-dimensional target is studied in this paper. The results show that quantum radar with multiphoton as transmitting signal may have better detection capability. These results are of great significance to further study the quantum scattering characteristics of complex targets. The research of quantum radar system based on spatial correlation detection is a potential research direction especially for the stealth target detection.
Quantum radar represents a promising advancement over classical radar systems by exploiting quantum mechanical phenomena such as entanglement and quantum measurement to overcome fundamental detection limitations. This paper reviews the evolution of radar technology from conventional radar frequency systems to quantum radar architectures, with emphasis on sensitivity enhancement and detection of RF-stealth targets for military defense applications. Classical radar parameters such as radar range, transmitted power and cross section are revisited and extended to their quantum analogues. The role of entangled single photon sources in improving detection performance under high noise and jamming environments is discussed. Context of microwave quantum radar is reviewed along with photonic implementations. This paper further highlights the importance of quantum measurement theory, including system-apparatus entanglement, density matrix formalism and wave function collapse in extracting information from quantum radar systems. Although significant experimental challenges remain, recent advances indicate strong potential for future development of quantum radar in next generation defense and surveillance systems.