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Technology of Network & Communication
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App. Res. of Comp. Printed Article
Vol. 38, 2021 No. 11
3398-3402

Research and implementation of improved SS-TWR method based on UWB

Chen Siyuan
Yin Dong
Niu Yifeng
College of Intelligence Science & Technology, National University of Defense Technology, Changsha 410073, China
DOI: 10.19734/j.issn.1001-3695.2021.04.0116

Abstract

Focusing on the dilemma that under the condition of satellite navigation signal void or extreme susceptibility to interference, indoor fast-moving robots and large-scale drone clusters flying outdoors must rely on high-precision and high-real-time relative positioning to achieve motion navigation and control so that to avoid collisions between each individual, it is urgent to further explore methods with high real-time performance and high accuracy. Based on the in-depth study of the UWB ranging system, this paper proposed an improved time-estimable single-sided two-way ranging(SS-TWR) method, and established a processing system for the process of "ranging request-radio frequency module transmission-antenna delay correction-reverse transmission of the received signal". Firstly, the system established a detailed sequence time analysis and estimation method. compared with the commonly used double-sided two-way ranging(DS-TWR), it shortened the ranging time, increased the survey frequency, and decreased the number of error frames. Secondly, the system used an active temperature-compensation crystal oscillator to correct the clock, constructed an empirical model for correcting the error in the near-field area of the antenna radiation, and introduced the Kalman filter to conduct fusion estimation to the ranging results, which reduced the measurement error. Through a comparative test experiment in an indoor environment, it verifies that the accuracy of the improved SS-TWR reaches±5 cm equivalent to that of the DS-TWR, and the ranging time is less than 5ms.

Foundation Support

国家自然科学基金资助项目

Publish Information

DOI: 10.19734/j.issn.1001-3695.2021.04.0116
Publish at: Application Research of Computers Printed Article, Vol. 38, 2021 No. 11
Section: Technology of Network & Communication
Pages: 3398-3402
Serial Number: 1001-3695(2021)11-034-3398-05

Publish History

[2021-11-05] Printed Article

Cite This Article

陈思远, 尹栋, 牛轶峰. 基于UWB的SS-TWR改进方法研究与实现 [J]. 计算机应用研究, 2021, 38 (11): 3398-3402. (Chen Siyuan, Yin Dong, Niu Yifeng. Research and implementation of improved SS-TWR method based on UWB [J]. Application Research of Computers, 2021, 38 (11): 3398-3402. )

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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