Short-Baseline High-Precision DGPS for Smart Snow Blower

Luo, Yunlong; Weng, Zibin; Qi, Yihong; Deng, Lei; Yu, Wei; Li, Fuhai; Drewniak, James L.; Zhuang, Weihua; Miao, Miao; Huang, Jing

doi:10.1109/jiot.2020.2972746

Cited by 3 publications

(1 citation statement)

References 29 publications

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“…Common error is mainly caused by satellite clock error, ionospheric error, ephemeris error, and tropospheric error [2]. Non-common error includes receiver noise, receiver clock error, and multipath error [3]. The high accuracy of location is critical for intelligent connected vehicles [4].…”

Section: Introductionmentioning

confidence: 99%

An Application-Oriented Method Based on Cooperative Map Matching for Improving Vehicular Positioning Accuracy

Zhou

Chen

et al. 2022

Electronics

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Accurate vehicular positioning is important for intelligent and connected vehicles (ICVs). However, in urban canyons, vehicles that rely solely on global navigation satellite system (GNSS) are susceptible to factors such as signal blocking and multi-path, reducing the positioning performance. In this paper, an application-oriented cooperative map matching (CMM) method is proposed, and a low-cost Global Positioning System (GPS)/BeiDou navigation satellite system (BDS) integrated positioning system is designed. The road constraints of a real traffic environment, which simplifies the computational complexity and facilitates practical applications, are modeled. The positioning system is designed to collect and store the positioning data for experimental analysis. Static and dynamic experiments are conducted to verify the effectiveness of the CMM method. From the experimental results, the mean absolute error (MAE) and root mean square error (RMSE) of the positioning with CMM correction in the static experiment are reduced by 9.0% and 4.9%, respectively. In the dynamic experiment, compared with the original positioning error, the MAE is reduced by 44.2% while the RMSE is reduced by 24.3%. The results show that the proposed method can improve vehicular positioning accuracy effectively in both static and dynamic environments.

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Section: Introductionmentioning

confidence: 99%

An Application-Oriented Method Based on Cooperative Map Matching for Improving Vehicular Positioning Accuracy

Zhou

Chen

et al. 2022

Electronics

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Wideband circularly polarized high accuracy survey active antenna for global navigation satellite systems applications

Wei,

Liao,

Xue

et al. 2024

Micro & Optical Tech Letters

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This letter presents a new circularly polarized (CP) active antenna for global navigation satellite systems (GNSS) operating in the L1‐band (1.164–1.28 GHz) and L2‐band (1.525–1.615 GHz). The active antenna consists of a passive antenna and a two‐channel low‐noise amplifier (LNA) circuit. To achieve wideband coverage of the L1/L2 bands while maintaining a low profile, a new electroplating process is utilized in fabricating the passive antenna. Additionally, to realize CP performance, the passive antenna is sequentially fed by four ports with a wideband feeding network. To minimize phase variations, a 90° phase shifter loaded with open‐short‐stub is integrated into the feeding network. Furthermore, to improve noise immunity, out‐of‐band rejection, and amplify GNSS signals, the LNA circuit cascades two‐stage dielectric bandpass filters and three‐stage LNAs. Consequently, the circuit features a low noise figure of below 1.65 dB, a maximum out‐of‐band rejection level of 60 dB, and a stable active gain of 30 dB. The performance of the active antenna is evaluated in an outdoor open field using a GNSS receiver.

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Localization of a Passive Object in 3-D by Propagation Time Delays to a Rigid Body Receiver of Unknown Location

Ke,

2024

IEEE Trans. Signal Process.

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Short-Baseline High-Precision DGPS for Smart Snow Blower

Cited by 3 publications

References 29 publications

An Application-Oriented Method Based on Cooperative Map Matching for Improving Vehicular Positioning Accuracy

An Application-Oriented Method Based on Cooperative Map Matching for Improving Vehicular Positioning Accuracy

Wideband circularly polarized high accuracy survey active antenna for global navigation satellite systems applications

Localization of a Passive Object in 3-D by Propagation Time Delays to a Rigid Body Receiver of Unknown Location

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