Technology of Network & Communication
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App. Res. of Comp. Printed Article
Vol. 40, 2023 No. 4
1165-1171

Coherent signal resolution in array direction finding using compressed sensing algorithm

Ren Dongsheng1a,1b,2
Hou Jin1a,1b
Dang Hui1a,1b
You Xi1a,1b,2
Yang Pengxi1a,1b,2
Du Maosheng1a,1b,2
1. a. Laboratory of Intelligent Perception & Smart Operation & Maintenance, School of Information Science & Technology, b. National Engineering Laboratory of Integrated Transportation Big Data Application Technology, Southwest Jiaotong University, Chengdu 611756, China
2. Graduate School of Tangshan, Southwest Jiaotong University, Tangshan Hebei 063000, China
DOI: 10.19734/j.issn.1001-3695.2022.07.0418

Abstract

For the existing algorithms control the size of the initial atom set and the maximum number of algorithm iterations by spare information, which would inevitably reduce the accuracy of reconstruction, increase the computational complexity, and limit its practical application. To overcome this problem, this paper proposed an improved algorithm based on orthogonal matching tracking algorithm. The proposed method regarded the number of elements as assumed sparsity as first. And then, it expanded the initial atom at initial stage that the sparsity information was unknown. Finally, it filtered the amplitude of the measured signal by a threshold to realize signal resolution and source number estimation. Based on the compressed sensing algorithm, it originally introduced a coherent relation analysis and coherent signal resolution model, which could help the direction-finder to effectively distinguish the directions of the reflected signals generated by the same signal source among the multiple signal directions indicated by the monitoring software. The experimental results show that the algorithm can clearly distinguish the coherent signals in different environments, and can be adapted to a variety of experimental platforms.

Foundation Support

国家重点研发计划项目(2020YFB1711902)
四川省科技计划项目(2020SYSY0016)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2022.07.0418
Publish at: Application Research of Computers Printed Article, Vol. 40, 2023 No. 4
Section: Technology of Network & Communication
Pages: 1165-1171
Serial Number: 1001-3695(2023)04-033-1165-07

Publish History

[2022-11-08] Accepted Paper
[2023-04-05] Printed Article

Cite This Article

任东升, 侯进, 党辉, 等. 压缩感知算法在阵列测向中的相干信号分辨 [J]. 计算机应用研究, 2023, 40 (4): 1165-1171. (Ren Dongsheng, Hou Jin, Dang Hui, et al. Coherent signal resolution in array direction finding using compressed sensing algorithm [J]. Application Research of Computers, 2023, 40 (4): 1165-1171. )

About the Journal

  • Application Research of Computers Monthly Journal
  • Journal ID ISSN 1001-3695
    CN  51-1196/TP

Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

Aiming at the urgently needed cutting-edge technology in this discipline, Application Research of Computers reflects the mainstream technology, hot technology and the latest development trend of computer application research at home and abroad in a timely manner. The main contents of the journal include high-level academic papers in this discipline, the latest scientific research results and major application results. The contents of the columns involve new theories of computer discipline, basic computer theory, algorithm theory research, algorithm design and analysis, blockchain technology, system software and software engineering technology, pattern recognition and artificial intelligence, architecture, advanced computing, parallel processing, database technology, computer network and communication technology, information security technology, computer image graphics and its latest hot application technology.

Application Research of Computers has many high-level readers and authors, and its readers are mainly senior and middle-level researchers and engineers engaged in the field of computer science, as well as teachers and students majoring in computer science and related majors in colleges and universities. Over the years, the total citation frequency and Web download rate of Application Research of Computers have been ranked among the top of similar academic journals in this discipline, and the academic papers published are highly popular among the readers for their novelty, academics, foresight, orientation and practicality.

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