Hua Chen;Haodong Guo;Wei Liu;Qing Shen;Gang Wang;Hing Cheung So
{"title":"Fourth-Order Sparse Array Design From a Sum-Difference Co-Array Perspective","authors":"Hua Chen;Haodong Guo;Wei Liu;Qing Shen;Gang Wang;Hing Cheung So","doi":"10.1109/TSP.2025.3575079","DOIUrl":"10.1109/TSP.2025.3575079","url":null,"abstract":"Sparse arrays designed based on fourth-order difference co-array (DCA) can achieve significantly higher uniform degrees-of-freedom (uDOFs). However, most existing fourth-order sparse arrays do not fully utilize the properties of the second-order sum co-array (SCA) that is also closely related to the fourth-order DCA. In this paper, a fourth-order sparse array design scheme from the sum-difference co-array perspective is proposed, which can be generated by two arbitrary arrays called generator arrays. Once the two generator arrays are determined, all sensor positions can be obtained with a closed-form expression. If the second-order SCA and DCA of the generator arrays have long consecutive segments without holes, the derived sparse array obtained through this scheme can achieve a large number of uDOFs. Besides, other characteristics of the generator arrays can also be inherited, such as robustness against mutual coupling or sensor failures. Simulation results are provided to demonstrate the performance of the proposed design in different applications.","PeriodicalId":13330,"journal":{"name":"IEEE Transactions on Signal Processing","volume":"73 ","pages":"2243-2254"},"PeriodicalIF":4.6,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144218668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Robust Parameter Estimation of Non-linear State Space Models Using a Divergence-Based Estimator","authors":"Haruya Ishizuka, Hironori Fujisawa","doi":"10.1109/tsp.2025.3576241","DOIUrl":"https://doi.org/10.1109/tsp.2025.3576241","url":null,"abstract":"","PeriodicalId":13330,"journal":{"name":"IEEE Transactions on Signal Processing","volume":"52 1","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144218700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Parametric Joint Target Detection and Localization Using Message Passing for Distributed Passive MIMO Radar","authors":"Bin Li;Jun Li;Qinghua Guo;Zehua Yu;Yuntao Wu","doi":"10.1109/TSP.2025.3572903","DOIUrl":"10.1109/TSP.2025.3572903","url":null,"abstract":"This paper addresses the challenge of joint target detection and localization with a distributed dual-channel passive multiple-input multiple-output (MIMO) radar, which comprises multiple non-cooperative illuminators of opportunity and receivers. In conventional approaches, the target position is typically obtained by conducting exhaustive grid search for the peak of the test statistics. To reduce the errors due to grid mismatch, the number of grid cells needs to be large, leading to high computational complexity and hampering real-time processing capabilities. Moreover, these approaches are ineffective under strong direct-path interference. In this paper, an efficient factor graph approach for joint target detection and localization is proposed, which detects and localizes the target through parameter estimation, significantly reducing the computational complexity while maintaining high robustness. In particular, we introduce a binary target existence variable to represent the presence or absence of a target and reformulate the problem as the computation of the marginal posterior probabilities of unknown parameters. Then an efficient message passing algorithm is developed to solve the reformulated problem. Extensive simulation results demonstrate that the proposed approach outperforms state-of-the-art approaches in various scenarios, while with much lower computational complexity.","PeriodicalId":13330,"journal":{"name":"IEEE Transactions on Signal Processing","volume":"73 ","pages":"2200-2215"},"PeriodicalIF":4.6,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144201435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Extended Object Tracking by Rao-Blackwellized Particle Filtering for Orientation Estimation","authors":"Simon Steuernagel, Marcus Baum","doi":"10.1109/tsp.2025.3574689","DOIUrl":"https://doi.org/10.1109/tsp.2025.3574689","url":null,"abstract":"","PeriodicalId":13330,"journal":{"name":"IEEE Transactions on Signal Processing","volume":"48 1","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144164974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ziheng Liu, Jiayi Zhang, Yiyang Zhu, Enyu Shi, Bo Ai
{"title":"Robust Multidimensional Graph Neural Networks for Signal Processing in Wireless Communications with Edge-Graph Information Bottleneck","authors":"Ziheng Liu, Jiayi Zhang, Yiyang Zhu, Enyu Shi, Bo Ai","doi":"10.1109/tsp.2025.3574005","DOIUrl":"https://doi.org/10.1109/tsp.2025.3574005","url":null,"abstract":"","PeriodicalId":13330,"journal":{"name":"IEEE Transactions on Signal Processing","volume":"35 1","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144153540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zihao Jiang, Giorgio Battistelli, Luigi Chisci, Nicola Forti, Weidong Zhou
{"title":"Outlier-Robust Centralized and Distributed Variational Bayesian Moving Horizon Estimation","authors":"Zihao Jiang, Giorgio Battistelli, Luigi Chisci, Nicola Forti, Weidong Zhou","doi":"10.1109/tsp.2025.3572912","DOIUrl":"https://doi.org/10.1109/tsp.2025.3572912","url":null,"abstract":"","PeriodicalId":13330,"journal":{"name":"IEEE Transactions on Signal Processing","volume":"25 1","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144153712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Symplectic Wigner Distribution in the Linear Canonical Transform Domain: Theory and Application","authors":"Yangfan He, Zhichao Zhang","doi":"10.1109/tsp.2025.3572739","DOIUrl":"https://doi.org/10.1109/tsp.2025.3572739","url":null,"abstract":"","PeriodicalId":13330,"journal":{"name":"IEEE Transactions on Signal Processing","volume":"146 1","pages":"1-16"},"PeriodicalIF":5.4,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144146081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}