A time difference of arrival/angle of arrival fusion algorithm with steepest descent algorithm for indoor non-line-of-sight locationing

Shen, Chong; Wang, Chengxiao; Zhang, Kun; Wang, Xianpeng; Liu, Jing

doi:10.1177/1550147719860354

Cited by 18 publications

(4 citation statements)

References 12 publications

(12 reference statements)

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“…The superior natural environment is the foundation of the Maldives tourism industry, so the Maldivian government attaches great importance to environmental protection and sustainable development of tourism. With more than 30 years of accumulation and improvement of uninhabited island development experience, the Maldives has formed a selfcontained uninhabited island development model [4][5].…”

Section: Maldives Islandsmentioning

confidence: 99%

Analysis and Research on Island Development Model and Experience

Zhang¹,

Zhu²,

Li³

et al. 2020

Proceedings of the 2020 International Conference on Social Science, Economics and Education Research (SSEER 2020)

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In recent years, regardless of whether it is in China or abroad, the popularity of island tours has remained high, and many successful cases have emerged, which have reference significance for the recreational development of Jiajing Island. However, each island has its own particularities and cannot be generalized. It is not advisable to copy the development model of other islands in its entirety. The article summarizes some successful island development cases at home and abroad. By analyzing the characteristics of its development and development process, it hopes to play a role in the development of Jiajing Island.

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Section: Maldives Islandsmentioning

confidence: 99%

Analysis and Research on Island Development Model and Experience

Zhang¹,

Zhu²,

Li³

et al. 2020

Proceedings of the 2020 International Conference on Social Science, Economics and Education Research (SSEER 2020)

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“…For breeding, there are two freshwater spring eyes on the north side of the island, and there are island name signs and geomagnetic survey azimuth points on the northwest and southwest sides. These are important resources of the island and should be actively protected [12]. Refer to Figure 1 for the delineation of the protection area of Jiajing Island.…”

Section: ) the Delineation Of Jiajing Island Ecological Protection Areamentioning

confidence: 99%

Research on Tourism Destination Development and Countermeasures of Hainan Island Without Residents Against the Background of Free Trade Zone Construction—Taking Jiajing Island as an Example

Zhang¹,

Zhu²,

Wang³

et al. 2020

Proceedings of the 2020 International Conference on Social Science, Economics and Education Research (SSEER 2020)

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The concept of sustainable development in the development of tourism is sustainable tourism. The World Tourism Organization believes that sustainable tourism is "to maintain the cultural integrity and the ecological environment while meeting people's economic, social, and aesthetic requirements; it can provide livelihoods for today's hosts and guests, while protecting and enhancing future generations. Benefits and provide them with the same opportunities ". Based on the perspective of sustainable development, the article mainly proposes a strategy analysis of recreational development of Jiajing Island from the three aspects of ecological, economic and social coordinated development.

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“…Currently, satellite navigation systems can fulfill the majority of outdoor positioning requirements. However, when it comes to indoor environments, factors such as the complexity of buildings and indoor surroundings can lead to signal attenuation, resulting in decreased positioning accuracy or even an inability to obtain a position fix [2]. Therefore, research into indoor positioning technology is highly necessary.…”

Section: Introductionmentioning

confidence: 99%

Non-line-of-sight ultra-wideband signal recognition using DWT-CNN

He,

Zhao,

Liu

et al. 2024

Fourth International Conference on Sensors and Information Technology (ICSI 2024)

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With the development of technology, the application of positioning techniques has become increasingly widespread. However, in indoor or specific situations, due to the complexity of the environment, it can be challenging to apply outdoor positioning techniques. Therefore, research on indoor positioning techniques is highly necessary.Ultra-Wideband(UWB) technology, as an indoor positioning method, can address many indoor positioning scenarios. However, when facing obstacles, it can still lead to non-line-of-sight (NLOS) situations, resulting in less accurate positioning. To address this issue, this paper proposes an approach that combines Discrete Wavelet Transform (DWT) and Convolutional Neural Networks (CNN). Firstly, it extracts coefficients from Channel Impulse Response (CIR) signals using DWT. Subsequently, these coefficients are input to a CNN to explore deep features, ultimately distinguishing between Non-Line-of-Sight (NLOS) and Line-of-Sight (LOS) signals based on these features. Experimental results demonstrate that this method achieves better classification accuracy compared to other approaches.

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A time difference of arrival/angle of arrival fusion algorithm with steepest descent algorithm for indoor non-line-of-sight locationing

Cited by 18 publications

References 12 publications

Analysis and Research on Island Development Model and Experience

Analysis and Research on Island Development Model and Experience

Research on Tourism Destination Development and Countermeasures of Hainan Island Without Residents Against the Background of Free Trade Zone Construction—Taking Jiajing Island as an Example

Non-line-of-sight ultra-wideband signal recognition using DWT-CNN

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