Iet Radar Sonar and Navigation最新文献

Hybrid polarimetry inverse synthetic aperture radar

IF 1.4 4区管理学

Iet Radar Sonar and Navigation Pub Date : 2025-02-13 DOI: 10.1049/rsn2.70004

Ajeet Kumar, Elisa Giusti, Marco Martorella

{"title":"Hybrid polarimetry inverse synthetic aperture radar","authors":"Ajeet Kumar, Elisa Giusti, Marco Martorella","doi":"10.1049/rsn2.70004","DOIUrl":"https://doi.org/10.1049/rsn2.70004","url":null,"abstract":"The inverse synthetic aperture radar (ISAR) system exploits the movement of the target to form its high-resolution image. Further, the multi-polarisation acquisition in ISAR collects additional information on the target's scattering properties and surface characteristics that help to enhance the imaging capabilities of ISAR. In this study, we suggest a novel multi-polarisation ISAR configuration based on the circular transmit and linear receive (CTLR) combination, namely CTLR hybrid-pol ISAR, for the application of non-cooperative target detection and imaging. The CTLR hybrid-pol ISAR captures sufficient information about the targets to accurately characterise them, and simultaneously overcomes the drawbacks of full-polarimetry (full-pol) ISAR associated with the transmission of two pulses to obtain a single unit of polarimetric back-scattered information. Validation is performed using real ISAR data of a T-72 tank target, collected under the moving and stationary target acquisition and recognition (MSTAR) programme conducted by the Georgia Tech Research Institute. A comparative analysis based on SPAN, entropy, and polarimetric decomposition is carried out between the full-pol ISAR and CTLR hybrid-pol ISAR information. The results conclude that CTLR hybrid-pol ISAR maintains a similar level of information content compared to full-pol ISAR while overcoming its drawbacks.","PeriodicalId":50377,"journal":{"name":"Iet Radar Sonar and Navigation","volume":"19 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/rsn2.70004","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143404664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of 3D model simplifications on the determination of numerical accuracy of the radar cross-section in aerial target recognition issues

IF 1.4 4区管理学

Iet Radar Sonar and Navigation Pub Date : 2025-02-06 DOI: 10.1049/rsn2.70003

Witold Bużantowicz, Marta Walenczykowska

{"title":"Impact of 3D model simplifications on the determination of numerical accuracy of the radar cross-section in aerial target recognition issues","authors":"Witold Bużantowicz, Marta Walenczykowska","doi":"10.1049/rsn2.70003","DOIUrl":"https://doi.org/10.1049/rsn2.70003","url":null,"abstract":"Method of moments is one of the most useful approaches for radar cross-section (RCS) simulation, allowing, that is, the computation of the scattering of real objects from 3D models. However, it is limited by computer memory and computation time. In this paper, the authors explore the question of the balance between the possible acceptable level of 3D model simplification and the time benefit associated with a decrease in computational overhead due to the reduction of the model geometry complexity. A spatial volume-based RCS characterisation quality index is proposed to help determine the level of simplification to achieve a significant reduction in computation time while maintaining an acceptable level of similarity. The authors present the results of the calculations performed for perfectly conducted sphere 3D models with varying levels of geometry simplification for which a simple analytical solution exists. Furthermore, the results of the computations performed for a generic missile model set are shown. Possible areas of the application of the proposed approach are also considered.","PeriodicalId":50377,"journal":{"name":"Iet Radar Sonar and Navigation","volume":"19 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/rsn2.70003","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A pointer scheduling algorithm for radar device-to-device opportunistic communication based on Tabu strategy

IF 1.4 4区管理学

Iet Radar Sonar and Navigation Pub Date : 2025-02-04 DOI: 10.1049/rsn2.70006

Gang Tian, Zhiwen Pan, Wenge Xing

{"title":"A pointer scheduling algorithm for radar device-to-device opportunistic communication based on Tabu strategy","authors":"Gang Tian, Zhiwen Pan, Wenge Xing","doi":"10.1049/rsn2.70006","DOIUrl":"https://doi.org/10.1049/rsn2.70006","url":null,"abstract":"Existing integration of radar detection and communication (IDAC) systems are in general based on multi-input multi-output multi-stations or single-base transceiver splitting. However, these methods are challenging to realise IDAC for integrated receive-transmit half-duplex (IRTHD) pulse radars, which are detection-centric and are based on self-transmission and self-reception systems. The majority of recent studies in the field of IDAC for IRTHD pulse radars have focused on utilising time-division approaches to avoid conflicts, thereby also creating competition for radar time resources. In this paper, a pointer scheduling algorithm based on Tabu search (PS-TS) is proposed for IRTHD pulse radars, which solves the challenge of simultaneous efficient detection and communication. Firstly, the study presents a model for radar device-to-device (D2D) opportunistic communication and proposes a framework for pulse interleaving based on pointer scheduling to realise IDAC. Secondly, the PS-TS algorithm employs a Tabu search strategy to maintain high-quality solutions to avoid local optima and introduces a tolerance factor to maximise the communication success rate (CSR) with the minimal time expenditure. Simulation results indicate that the PS-TS algorithm outperforms the genetic algorithm and particle swarm optimisation in terms of robustness, CSR, and computational efficiency, providing real-time scheduling for IDAC systems.","PeriodicalId":50377,"journal":{"name":"Iet Radar Sonar and Navigation","volume":"19 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/rsn2.70006","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143111651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multi-agent track confirmation utilising reinforcement learning and game theoretics

IF 1.4 4区管理学

Iet Radar Sonar and Navigation Pub Date : 2025-01-31 DOI: 10.1049/rsn2.12694

Geoffrey Dolinger, Timothy Sharp, Bryan Lavender, Alexander Stringer, Joseph Karch, Adam Bowersox, Justin Metcalf

{"title":"Multi-agent track confirmation utilising reinforcement learning and game theoretics","authors":"Geoffrey Dolinger, Timothy Sharp, Bryan Lavender, Alexander Stringer, Joseph Karch, Adam Bowersox, Justin Metcalf","doi":"10.1049/rsn2.12694","DOIUrl":"https://doi.org/10.1049/rsn2.12694","url":null,"abstract":"This research investigates the problem of track conformation for a search and evade challenge within the context of the radar resource management domain. To analyse how agent collaboration affects the ability of multiple radar agents in confirming an evasive target, a high-fidelity radar simulation was designed. The simulated radar environment implements a realistic noise and clutter distribution and uses a generalised likelihood ratio test to make detections. The challenge is implemented as a limited information game with a highly evasive target attempting to reach one of four objective points before the track is confirmed by collaborative confirmation agents. Multiple Gaussian heuristic methods are compared with a reinforcement learning approach as the action selection agent. Three game theory strategies were also implemented: non-collaborative best response, collaborative best response, and leader-follower consensus. The results explore the effect of false alarms on confirmation performance and the impact of collaborative game theory applied to the agents versus isolated performance.","PeriodicalId":50377,"journal":{"name":"Iet Radar Sonar and Navigation","volume":"19 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/rsn2.12694","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143397240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Inexpensive SAR testbed for 3D mmWave imaging applications

IF 1.4 4区管理学

Iet Radar Sonar and Navigation Pub Date : 2025-01-17 DOI: 10.1049/rsn2.12686

S M Yahea Mahbub, Muhammad Dawood, Ehtesham Shareef

{"title":"Inexpensive SAR testbed for 3D mmWave imaging applications","authors":"S M Yahea Mahbub, Muhammad Dawood, Ehtesham Shareef","doi":"10.1049/rsn2.12686","DOIUrl":"https://doi.org/10.1049/rsn2.12686","url":null,"abstract":"In this paper, the authors investigate and develop a low-cost synthetic aperture radar (SAR) testbed and utilise it to capture and reconstruct high-resolution 3D mmWave SAR images. Despite much attention from both industrial and academic scholars, cost restraints and complexity have hindered the deployment of SAR systems, particularly in the mmWave domain. This paper outlines the major components and systems of the 3D SAR testbed. The authors build a testbed with low-cost, commercially available hardware components and include open-source software that is highly reconfigurable and simple to reproduce. The multiple-input multiple-output (MIMO) radar sensor uses a frequency-modulated continuous wave (FMCW) chirp at the V-band (40–75 GHz) and synthesises a rectilinear two-dimensional planar aperture. The authors presented several reconstructed 3D images imitating real-world scenarios using the testbed. A non-linear sampling technique that has significantly decreased the amount of time required for data acquisition was implemented. In addition, the authors employed multiple image quality metrics to quantify and compare the images produced by the testbed. The testbed can be used to test and validate new techniques and algorithms.","PeriodicalId":50377,"journal":{"name":"Iet Radar Sonar and Navigation","volume":"19 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/rsn2.12686","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modelling real-world effects in near-field SAR collections for compressive sensing

IF 1.4 4区管理学

Iet Radar Sonar and Navigation Pub Date : 2025-01-09 DOI: 10.1049/rsn2.12692

George A. J. Price, Daniel Andre, Chris Moate, Peter Yuen, Mark Finnis

引用次数: 0

A data association algorithm based on the minimal angular distance sum for angle-only measurements with the sensor position unknown

IF 1.4 4区管理学

Iet Radar Sonar and Navigation Pub Date : 2025-01-02 DOI: 10.1049/rsn2.12696

Feng Ma, Huanzhang Lu, Xinglin Shen

引用次数: 0

Few-label aerial target intention recognition based on self-supervised contrastive learning

IF 1.4 4区管理学

Iet Radar Sonar and Navigation Pub Date : 2025-01-02 DOI: 10.1049/rsn2.12695

Zihao Song, Yan Zhou, Yichao Cai, Wei Cheng, Changfei Wu, Jianguo Yin

{"title":"Few-label aerial target intention recognition based on self-supervised contrastive learning","authors":"Zihao Song, Yan Zhou, Yichao Cai, Wei Cheng, Changfei Wu, Jianguo Yin","doi":"10.1049/rsn2.12695","DOIUrl":"https://doi.org/10.1049/rsn2.12695","url":null,"abstract":"Identifying the intentions of aerial targets is crucial for air situation understanding and decision making. Deep learning, with its powerful feature learning and representation capability, has become a key means to achieve higher performance in aerial target intention recognition (ATIR). However, conventional supervised deep learning methods rely on abundant labelled samples for training, which are difficult to quickly obtain in practical scenarios, posing a significant challenge to the effectiveness of training deep learning models. To address this issue, this paper proposes a novel few-label ATIR method based on deep contrastive learning, which combines the advantages of self-supervised learning and semi-supervised learning. Specifically, leveraging unlabelled samples, we first employ strong and weak data augmentation views and the temporal contrasting module to capture temporally relevant features, whereas the contextual contrasting module is utilised to learn discriminative representations. Subsequently, the network is fine-tuned with a limited set of labelled samples to further refine the learnt representations. Experimental results on an ATIR dataset demonstrate that our method significantly outperforms other few-label classification baselines in terms of recognition accuracy and Macro F1 score when the proportion of labelled samples is as low as 1% and 5%.","PeriodicalId":50377,"journal":{"name":"Iet Radar Sonar and Navigation","volume":"19 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/rsn2.12695","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An approach to distributed asynchronous multi-sensor fusion utilising data compensation algorithm

IF 1.4 4区管理学

Iet Radar Sonar and Navigation Pub Date : 2024-12-27 DOI: 10.1049/rsn2.12693

Kuiwu Wang, Qin Zhang, Zhenlu Jin, Xiaolong Fu

引用次数: 0

Template-based universal adversarial attack for synthetic aperture radar automatic target recognition network

IF 1.4 4区管理学

Iet Radar Sonar and Navigation Pub Date : 2024-12-25 DOI: 10.1049/rsn2.12691

Wei Liu, Xuanshen Wan, Chaoyang Niu, Wanjie Lu, Yuanli Li

{"title":"Template-based universal adversarial attack for synthetic aperture radar automatic target recognition network","authors":"Wei Liu, Xuanshen Wan, Chaoyang Niu, Wanjie Lu, Yuanli Li","doi":"10.1049/rsn2.12691","DOIUrl":"https://doi.org/10.1049/rsn2.12691","url":null,"abstract":"Existing synthetic aperture radar (SAR) adversarial attack algorithms primarily focus on the digital image domain, and constructing adversarial examples in real-world scenarios presents significant and challenging hurdles. This study proposes the template-based universal adversarial attack (TUAA) algorithm. Initially, a SAR interference template generator module is constructed to derive a universal adversarial perturbation in the image domain. The designed loss function guides the parameter updating of the generator, thereby improving the attack effectiveness and perturbation concealment. Subsequently, a SAR jamming signal generator module is developed, which swiftly generates the interference signal using the range convolutional and azimuth multiplication modulation jamming method. Consequently, the victim model can be effectively targeted by merely transmitting the jamming signal to the SAR receiver. Experimental results show that TUAA reduces the recognition rate of four typical DNN models to less than 15% under acceptable time costs and image deformation.","PeriodicalId":50377,"journal":{"name":"Iet Radar Sonar and Navigation","volume":"19 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/rsn2.12691","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143363066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0