Pub Date : 2022-11-01DOI: 10.1080/10095020.2022.2072240
Ammar Mandourah, H. Hochmair
{"title":"Analyzing the violation of drone regulations in three VGI drone portals across the US, the UK, and France","authors":"Ammar Mandourah, H. Hochmair","doi":"10.1080/10095020.2022.2072240","DOIUrl":"https://doi.org/10.1080/10095020.2022.2072240","url":null,"abstract":"","PeriodicalId":58518,"journal":{"name":"武测译文","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46188940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-21DOI: 10.1080/10095020.2022.2134057
Dianfeng Liu, Huiying Li, Mingli Qiu, Yaolin Liu
ABSTRACT Urban Green Spaces (UGSs) can provide social and ecological benefits, and the coordination of these two functions will largely advance human-nature harmony in cities. As such, we proposed a comprehensive framework to evaluate UGSs multifunctionality, i.e. the coupling coordination relationship of ecological connectivity and spatial accessibility of UGSs. Wuhan City in Central China was taken as a case study, and multiple ecosystem service values of green space patches and the disordered use of UGSs multifunctionality were explored. The results demonstrated low-level coupling coordination of UGSs multifunctionality in Wuhan. More than 70% of UGSs were imbalanced, 27.91% of which featured small sizes, low connectivity and accessibility. We suggest that planners should optimize UGSs arrangement to improve species reachability, especially for species with dispersal distance less than 4 km, and to create 15-minute community life circles for residents at the same time. Our findings are expected to support the promotion of UGSs multifunctionality and the balance of urban development and habitat conservation.
{"title":"Understanding coupled coordination relationships between social and ecological functions of urban green spaces","authors":"Dianfeng Liu, Huiying Li, Mingli Qiu, Yaolin Liu","doi":"10.1080/10095020.2022.2134057","DOIUrl":"https://doi.org/10.1080/10095020.2022.2134057","url":null,"abstract":"ABSTRACT Urban Green Spaces (UGSs) can provide social and ecological benefits, and the coordination of these two functions will largely advance human-nature harmony in cities. As such, we proposed a comprehensive framework to evaluate UGSs multifunctionality, i.e. the coupling coordination relationship of ecological connectivity and spatial accessibility of UGSs. Wuhan City in Central China was taken as a case study, and multiple ecosystem service values of green space patches and the disordered use of UGSs multifunctionality were explored. The results demonstrated low-level coupling coordination of UGSs multifunctionality in Wuhan. More than 70% of UGSs were imbalanced, 27.91% of which featured small sizes, low connectivity and accessibility. We suggest that planners should optimize UGSs arrangement to improve species reachability, especially for species with dispersal distance less than 4 km, and to create 15-minute community life circles for residents at the same time. Our findings are expected to support the promotion of UGSs multifunctionality and the balance of urban development and habitat conservation.","PeriodicalId":58518,"journal":{"name":"武测译文","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41591946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The Evolution of urban agglomerations in China and how it deviates from Zipf’s law","authors":"Bowen Cai, Z. Shao, Shenghui Fang, Xiao Huang, Yun Tang, Muchen Zheng, Hao Zhang","doi":"10.1080/10095020.2022.2083527","DOIUrl":"https://doi.org/10.1080/10095020.2022.2083527","url":null,"abstract":"","PeriodicalId":58518,"journal":{"name":"武测译文","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46127434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-20DOI: 10.1080/10095020.2022.2122876
Xianghui Zhang, Tao Cheng
{"title":"The impacts of the COVID-19 pandemic on multimodal human mobility in London: A perspective of decarbonizing transport","authors":"Xianghui Zhang, Tao Cheng","doi":"10.1080/10095020.2022.2122876","DOIUrl":"https://doi.org/10.1080/10095020.2022.2122876","url":null,"abstract":"","PeriodicalId":58518,"journal":{"name":"武测译文","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46637246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-20DOI: 10.1080/10095020.2022.2128902
Qiqi Zhu, Xi Guo, Ziqi Li, D. Li
{"title":"A review of multi-class change detection for satellite remote sensing imagery","authors":"Qiqi Zhu, Xi Guo, Ziqi Li, D. Li","doi":"10.1080/10095020.2022.2128902","DOIUrl":"https://doi.org/10.1080/10095020.2022.2128902","url":null,"abstract":"","PeriodicalId":58518,"journal":{"name":"武测译文","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47910915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-18DOI: 10.1080/10095020.2022.2072241
C. Burger, W. Kleynhans, T. Grobler
{"title":"Extended linear regression model for vessel trajectory prediction with a-priori AIS information","authors":"C. Burger, W. Kleynhans, T. Grobler","doi":"10.1080/10095020.2022.2072241","DOIUrl":"https://doi.org/10.1080/10095020.2022.2072241","url":null,"abstract":"","PeriodicalId":58518,"journal":{"name":"武测译文","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45503909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-18DOI: 10.1080/10095020.2022.2108344
Zhaoliang Liu, Liang Chen, Xin Zhou, Nan Shen, Ruizhi Chen
ABSTRACT Indoor positioning with high accuracy plays an important role in different application scenarios. As a widely used mobile communication signal, the Long-Term Evolution (LTE) network can be well received in indoor and outdoor environments. This article studies a method of using different reference signals in the LTE downlink for carrier phase time of arrival (TOA) estimation. Specifically, a solution is proposed and a multipath tracking Software Defined Receiver (SDR) is developed for indoor positioning. With our SDR indoor positioning system, the pilot signals of the LTE signals are firstly obtained by the coarse synchronization and demodulation. Then, with the assistance of the pilot signals, the time delay acquisition, the multipath estimating delay lock loop (MEDLL) algorithm, and the multipath anomaly detection are sequentially carried out to obtain navigation observations of received signals. Furthermore, to compare the performance of different pilot signals, the Secondary Synchronous Signals (SSS) and Cell Reference Signals (CRS) are used as pilot signals for carrier phase-based TOA estimation, respectively. Finally, to quantify the accuracy of our multipath tracking SDR, indoor field tests are carried out in a conference environment, where an LTE base station is installed for commercial use. Our test results based on CRS show that, in the static test scenarios, the TOA accuracy measured by the 1-σ error interval is about 0.5 m, while in the mobile environment, the probability of range accuracy within 1.0 m is 95%.
{"title":"Multipath tracking with LTE signals for accurate TOA estimation in the application of indoor positioning","authors":"Zhaoliang Liu, Liang Chen, Xin Zhou, Nan Shen, Ruizhi Chen","doi":"10.1080/10095020.2022.2108344","DOIUrl":"https://doi.org/10.1080/10095020.2022.2108344","url":null,"abstract":"ABSTRACT Indoor positioning with high accuracy plays an important role in different application scenarios. As a widely used mobile communication signal, the Long-Term Evolution (LTE) network can be well received in indoor and outdoor environments. This article studies a method of using different reference signals in the LTE downlink for carrier phase time of arrival (TOA) estimation. Specifically, a solution is proposed and a multipath tracking Software Defined Receiver (SDR) is developed for indoor positioning. With our SDR indoor positioning system, the pilot signals of the LTE signals are firstly obtained by the coarse synchronization and demodulation. Then, with the assistance of the pilot signals, the time delay acquisition, the multipath estimating delay lock loop (MEDLL) algorithm, and the multipath anomaly detection are sequentially carried out to obtain navigation observations of received signals. Furthermore, to compare the performance of different pilot signals, the Secondary Synchronous Signals (SSS) and Cell Reference Signals (CRS) are used as pilot signals for carrier phase-based TOA estimation, respectively. Finally, to quantify the accuracy of our multipath tracking SDR, indoor field tests are carried out in a conference environment, where an LTE base station is installed for commercial use. Our test results based on CRS show that, in the static test scenarios, the TOA accuracy measured by the 1-σ error interval is about 0.5 m, while in the mobile environment, the probability of range accuracy within 1.0 m is 95%.","PeriodicalId":58518,"journal":{"name":"武测译文","volume":"26 1","pages":"31 - 43"},"PeriodicalIF":0.0,"publicationDate":"2022-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47549249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-18DOI: 10.1080/10095020.2022.2113342
Z. Fang, Xiaofan Wang, Ying Zhuang, Xianglong Liu
ABSTRACT Electric Taxis (ETs) are the most favored alternatives to Gasoline Taxis (GTs) in cities that aim to reduce environmental pollution. How to develop a reasonable scale on which GTs are substituted by ETs remains a challenge to governments due to the dynamics and complexity of the taxi system. To address this challenge, this paper develops a discrete-event-based simulation framework to simulate participants in the system and estimate the results under different substitution scales, which are helpful to understanding the status changing law of entities under different substitution scales, such as the operating indices of ETs, the unsatisfied travel requirements of passengers, and the usage state of charging facilities. The framework abstracts the behavioral process of ETs into three elements, namely, entity, behavior, and event. The entities are constructed from the information derived from the trajectory data. The behaviors are defined by rules following behavioral logic under anxiety psychology, which is caused by the limited range of ETs. The events are triggered based on rules from reality. With the help of this framework, a multi-objective optimization model is developed to obtain the optimal substitution scale of GTs in the case study area of Zhengzhou City. Overall, the approach could provide a practical tool to address this challenge, which could support further studies of the effect of ETs on urban taxis.
{"title":"Estimating optimal substitution scale of urban gasoline taxis by electric taxis in the era of green energy: a case study of Zhengzhou City","authors":"Z. Fang, Xiaofan Wang, Ying Zhuang, Xianglong Liu","doi":"10.1080/10095020.2022.2113342","DOIUrl":"https://doi.org/10.1080/10095020.2022.2113342","url":null,"abstract":"ABSTRACT Electric Taxis (ETs) are the most favored alternatives to Gasoline Taxis (GTs) in cities that aim to reduce environmental pollution. How to develop a reasonable scale on which GTs are substituted by ETs remains a challenge to governments due to the dynamics and complexity of the taxi system. To address this challenge, this paper develops a discrete-event-based simulation framework to simulate participants in the system and estimate the results under different substitution scales, which are helpful to understanding the status changing law of entities under different substitution scales, such as the operating indices of ETs, the unsatisfied travel requirements of passengers, and the usage state of charging facilities. The framework abstracts the behavioral process of ETs into three elements, namely, entity, behavior, and event. The entities are constructed from the information derived from the trajectory data. The behaviors are defined by rules following behavioral logic under anxiety psychology, which is caused by the limited range of ETs. The events are triggered based on rules from reality. With the help of this framework, a multi-objective optimization model is developed to obtain the optimal substitution scale of GTs in the case study area of Zhengzhou City. Overall, the approach could provide a practical tool to address this challenge, which could support further studies of the effect of ETs on urban taxis.","PeriodicalId":58518,"journal":{"name":"武测译文","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48251074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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