Pub Date : 2021-11-12DOI: 10.1109/ISTTCA53489.2021.9654635
Yang Xu, Weifeng Li
According to a large number of contemporary studies on ship collision avoidance, the traditional DCPA and TCPA are not enough to estimate the ship collision risk and plan the avoidance operation. In order to solve the problems of insufficient accuracy of collision risk calculation and poor risk identification in ship collision avoidance decision-making, a new elliptical ship domain is proposed through the combination of Coldwell ship domain and quaternion ship domain. Based on this ship field, the multi ship collision risk assessment model is improved, and the accuracy before and after the improvement is compared. The results show that the improved model can identify target ships with similar motion parameters, and the identification accuracy is higher. The improved model can provide theoretical support for more complex multi ship collision avoidance.
{"title":"An analysis of ship collision risk parameters based on speed ship domain","authors":"Yang Xu, Weifeng Li","doi":"10.1109/ISTTCA53489.2021.9654635","DOIUrl":"https://doi.org/10.1109/ISTTCA53489.2021.9654635","url":null,"abstract":"According to a large number of contemporary studies on ship collision avoidance, the traditional DCPA and TCPA are not enough to estimate the ship collision risk and plan the avoidance operation. In order to solve the problems of insufficient accuracy of collision risk calculation and poor risk identification in ship collision avoidance decision-making, a new elliptical ship domain is proposed through the combination of Coldwell ship domain and quaternion ship domain. Based on this ship field, the multi ship collision risk assessment model is improved, and the accuracy before and after the improvement is compared. The results show that the improved model can identify target ships with similar motion parameters, and the identification accuracy is higher. The improved model can provide theoretical support for more complex multi ship collision avoidance.","PeriodicalId":383266,"journal":{"name":"2021 4th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA)","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122533302","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 : 2021-11-12DOI: 10.1109/ISTTCA53489.2021.9654787
Jie Liu, Ming-Jie Li, Xiulin Li
Rock-anchored beam is a common structural form in underground plants of modern large hydropower stations. Due to the long length of the construction section of the rock-anchored beam, the high concrete grade and a large amount of pouring, temperature control and crack prevention are relatively difficult. This paper analyzes the feasibility of water cooling to improve the crack resistance of rock-anchored beam concrete, and puts forward the corresponding measures of temperature control and crack prevention for reference of similar projects.
{"title":"Simulation Analysis of Temperature and Stress of Rock-anchored Beam during Construction","authors":"Jie Liu, Ming-Jie Li, Xiulin Li","doi":"10.1109/ISTTCA53489.2021.9654787","DOIUrl":"https://doi.org/10.1109/ISTTCA53489.2021.9654787","url":null,"abstract":"Rock-anchored beam is a common structural form in underground plants of modern large hydropower stations. Due to the long length of the construction section of the rock-anchored beam, the high concrete grade and a large amount of pouring, temperature control and crack prevention are relatively difficult. This paper analyzes the feasibility of water cooling to improve the crack resistance of rock-anchored beam concrete, and puts forward the corresponding measures of temperature control and crack prevention for reference of similar projects.","PeriodicalId":383266,"journal":{"name":"2021 4th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128625313","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 : 2021-11-12DOI: 10.1109/ISTTCA53489.2021.9654681
Erhong Hu, X. Cao, Ling Huang, W. Cai, Qiang Xiong
With the development of prefabricated buildings and the national requirements of promoting green buildings, this paper studies the failure modes and seismic performance of the t-shaped steel tubular recycled concrete column and prefabricated steel beam joint. The concrete filled steel tubular column composed of 100% recycled concrete is selected. The seismic performance of prefabricated cantilever beam segment fully bolted joints, bolt-reinforced joints, steel tubular recycled concrete columns-Z-shaped prefabricated joints and z-shaped joints with upper and lower flange stiffeners designed according to the principle of equal strength design are studied. The failure models and hysteretic curves of four specimens were obtained by numerical simulation. The seismic behavior of cantilever beam joints affected by the number of flange bolts and the shape of cantilever beam joints was analyzed. The results show that the t-shaped steel tubular recycled concrete column-fabricated Z-shaped steel beam joint has good seismic resistance and can realize the outward displacement of the plastic hinge at the beam end. The anti-seismic capability of joints can be significantly enhanced by setting up upper and lower flange stiffeners and web side stiffeners.
{"title":"Study On Seismic Behavior Of T-shaped Tubular Recycled Concrete Column-assembled Steel Beam Joint","authors":"Erhong Hu, X. Cao, Ling Huang, W. Cai, Qiang Xiong","doi":"10.1109/ISTTCA53489.2021.9654681","DOIUrl":"https://doi.org/10.1109/ISTTCA53489.2021.9654681","url":null,"abstract":"With the development of prefabricated buildings and the national requirements of promoting green buildings, this paper studies the failure modes and seismic performance of the t-shaped steel tubular recycled concrete column and prefabricated steel beam joint. The concrete filled steel tubular column composed of 100% recycled concrete is selected. The seismic performance of prefabricated cantilever beam segment fully bolted joints, bolt-reinforced joints, steel tubular recycled concrete columns-Z-shaped prefabricated joints and z-shaped joints with upper and lower flange stiffeners designed according to the principle of equal strength design are studied. The failure models and hysteretic curves of four specimens were obtained by numerical simulation. The seismic behavior of cantilever beam joints affected by the number of flange bolts and the shape of cantilever beam joints was analyzed. The results show that the t-shaped steel tubular recycled concrete column-fabricated Z-shaped steel beam joint has good seismic resistance and can realize the outward displacement of the plastic hinge at the beam end. The anti-seismic capability of joints can be significantly enhanced by setting up upper and lower flange stiffeners and web side stiffeners.","PeriodicalId":383266,"journal":{"name":"2021 4th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129267178","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 : 2021-11-12DOI: 10.1109/ISTTCA53489.2021.9654726
Yang Ran, Guoyou Shi, Weifeng Li
In order to further improve the accuracy of ship navigation dynamic prediction, a ship navigation trajectory prediction method combining automatic identification system (AIS) and deep learning is proposed. The AIS data is transformed into navigation dynamic time series, and the navigation trajectory features are extracted for the training and testing of long short term memory (LSTM) based on attention mechanism. The prediction results can provide reference for the supervision of vessel traffic services(VTS),and have high practical application value in early warning of ship collision, stranding and other accidents.
{"title":"Ship Track Prediction Model based on Automatic Identification System Data and Bidirectional Cyclic Neural Network","authors":"Yang Ran, Guoyou Shi, Weifeng Li","doi":"10.1109/ISTTCA53489.2021.9654726","DOIUrl":"https://doi.org/10.1109/ISTTCA53489.2021.9654726","url":null,"abstract":"In order to further improve the accuracy of ship navigation dynamic prediction, a ship navigation trajectory prediction method combining automatic identification system (AIS) and deep learning is proposed. The AIS data is transformed into navigation dynamic time series, and the navigation trajectory features are extracted for the training and testing of long short term memory (LSTM) based on attention mechanism. The prediction results can provide reference for the supervision of vessel traffic services(VTS),and have high practical application value in early warning of ship collision, stranding and other accidents.","PeriodicalId":383266,"journal":{"name":"2021 4th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA)","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116638339","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 : 2021-11-12DOI: 10.1109/ISTTCA53489.2021.9654484
Yongsheng Liu
Due to the long distance of long tunnel, the ventilation will be limited by the clearance size, which will affect the dust reduction effect. In view of this problem, a ventilation and dust reduction method for the construction of long tunnel of highspeed railway is proposed. The mathematical model of dust transport is established, the energy conservation equation of two-phase flow of gas and dust particles is obtained, and the law of dust transport in the tunnel is further analyzed. According to the optimal ventilation speed of tunnel construction ventilation, the ventilation parameters of long and long tunnels are calculated, and the long-distance multi-stage combined ventilation model is established, so as to determine the number and configuration of fans. The results show that the maximum dust concentration of this method is 0.6 mg/m3, which is 6.2 mg/m3 and 5.9 mg/m3 lower than that of pressure ventilation and extraction ventilation. Therefore, this method can achieve a better dust removal effect and meet the environmental requirements in the tunnel.
{"title":"Study on Ventilation and Dust Reduction Method for Long and Long Tunnel Construction of High-Speed Railway","authors":"Yongsheng Liu","doi":"10.1109/ISTTCA53489.2021.9654484","DOIUrl":"https://doi.org/10.1109/ISTTCA53489.2021.9654484","url":null,"abstract":"Due to the long distance of long tunnel, the ventilation will be limited by the clearance size, which will affect the dust reduction effect. In view of this problem, a ventilation and dust reduction method for the construction of long tunnel of highspeed railway is proposed. The mathematical model of dust transport is established, the energy conservation equation of two-phase flow of gas and dust particles is obtained, and the law of dust transport in the tunnel is further analyzed. According to the optimal ventilation speed of tunnel construction ventilation, the ventilation parameters of long and long tunnels are calculated, and the long-distance multi-stage combined ventilation model is established, so as to determine the number and configuration of fans. The results show that the maximum dust concentration of this method is 0.6 mg/m3, which is 6.2 mg/m3 and 5.9 mg/m3 lower than that of pressure ventilation and extraction ventilation. Therefore, this method can achieve a better dust removal effect and meet the environmental requirements in the tunnel.","PeriodicalId":383266,"journal":{"name":"2021 4th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA)","volume":"138 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116759084","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 : 2021-11-12DOI: 10.1109/ISTTCA53489.2021.9654786
Qiang Xu
Suspension bridge is the main bridge type of modern long-span bridge, which has the characteristics of large span capacity, low material consumption and small dead weight. As the structure of suspension bridge is complex, it is difficult to evaluate its performance and bearing capacity accurately. Under the Shangri-La's Shangjiang Grand Bridge project, based on load tests, including static load test and dynamic load test, in order to identify whether the suspension bridge has the original designed working performance and bearing capacity, thereby provide guidance for the repair and reinforcement of the bridge opinion. Through static load tests, certain control sections are selected for the main bridge and approach bridge respectively, and the strain and deflection of each control section of the structure under normal and eccentric load conditions, the maximum horizontal displacement of the top of the tower in the longitudinal direction of the bridge, and the cable of the suspender are tested. At the same time, the impact coefficient is tested based on the dynamic response test, and the vibration mode, natural frequency, and damping ratio of the suspension bridge are obtained by the environmental random pulsation method. Finally, the measured results are compared with the theoretical analysis results. The results show that the strain and deflection calibration coefficients of the bridge under the static load test are both less than 1, which meets the requirements of the specification, indicating that the overall rigidity of the bridge span structure tested is good under the test load; under dynamic load, when there is an obstacle, the driving speed reaches 5 km/h, the impact coefficient reaches the maximum value of 0.318. In the dynamic characteristic test, the measured natural frequency and damping ratio are within the normal range. The load test results of Shangjiang Grand Bridge show that load test is a feasible method to evaluate the bearing capacity of single-span suspension bridge.
{"title":"Evaluation of bearing capacity of single-span suspension bridge under load Test","authors":"Qiang Xu","doi":"10.1109/ISTTCA53489.2021.9654786","DOIUrl":"https://doi.org/10.1109/ISTTCA53489.2021.9654786","url":null,"abstract":"Suspension bridge is the main bridge type of modern long-span bridge, which has the characteristics of large span capacity, low material consumption and small dead weight. As the structure of suspension bridge is complex, it is difficult to evaluate its performance and bearing capacity accurately. Under the Shangri-La's Shangjiang Grand Bridge project, based on load tests, including static load test and dynamic load test, in order to identify whether the suspension bridge has the original designed working performance and bearing capacity, thereby provide guidance for the repair and reinforcement of the bridge opinion. Through static load tests, certain control sections are selected for the main bridge and approach bridge respectively, and the strain and deflection of each control section of the structure under normal and eccentric load conditions, the maximum horizontal displacement of the top of the tower in the longitudinal direction of the bridge, and the cable of the suspender are tested. At the same time, the impact coefficient is tested based on the dynamic response test, and the vibration mode, natural frequency, and damping ratio of the suspension bridge are obtained by the environmental random pulsation method. Finally, the measured results are compared with the theoretical analysis results. The results show that the strain and deflection calibration coefficients of the bridge under the static load test are both less than 1, which meets the requirements of the specification, indicating that the overall rigidity of the bridge span structure tested is good under the test load; under dynamic load, when there is an obstacle, the driving speed reaches 5 km/h, the impact coefficient reaches the maximum value of 0.318. In the dynamic characteristic test, the measured natural frequency and damping ratio are within the normal range. The load test results of Shangjiang Grand Bridge show that load test is a feasible method to evaluate the bearing capacity of single-span suspension bridge.","PeriodicalId":383266,"journal":{"name":"2021 4th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA)","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114288248","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 : 2021-11-12DOI: 10.1109/ISTTCA53489.2021.9654595
Xuelei Zhang, Hewen Liu, Linbo Xie
The three-arm rock drilling rig can efficiently carry out tunnel excavation, which has major advantages over traditional manual blasting. The hole sequence planning of the three-arm rock drilling rig can reduce working time and reduce energy consumption. In this paper, based on the ant colony algorithm, the construction hole sequence of the three-arm rock drilling rig was researched, and an efficient construction sequence is obtained and applied to actual tunnel engineering.
{"title":"Research on Hole Sequence Planning of Three-Arm Rock Drilling Rig","authors":"Xuelei Zhang, Hewen Liu, Linbo Xie","doi":"10.1109/ISTTCA53489.2021.9654595","DOIUrl":"https://doi.org/10.1109/ISTTCA53489.2021.9654595","url":null,"abstract":"The three-arm rock drilling rig can efficiently carry out tunnel excavation, which has major advantages over traditional manual blasting. The hole sequence planning of the three-arm rock drilling rig can reduce working time and reduce energy consumption. In this paper, based on the ant colony algorithm, the construction hole sequence of the three-arm rock drilling rig was researched, and an efficient construction sequence is obtained and applied to actual tunnel engineering.","PeriodicalId":383266,"journal":{"name":"2021 4th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116231043","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 : 2021-11-12DOI: 10.1109/ISTTCA53489.2021.9654500
Xiaoshuai Qiao, Hong Lin, Li-Na Kou
In view of the prominent vibration of industrial dynamic equipment on the floor, the related Standard of vibration design is scattered, the requirements are not uniform, and the vibration calculation is complex. This article first combines the design experience to analyse the dynamic calculation methods, the value of vibration load, grading of dynamic influence, and the allowable vibration limit. And take the single beam commonly used in actual engineering as the object, starting from the natural vibration characteristics of the structure, the vibration law, vibration reduction measures and design principles are summarized. The research finally worked out the basic process and method of vibration design when the dynamic equipment is on the floor, thus providing an intuitive and clear reference for future vibration design.
{"title":"Research on Vibration of Industrial Dynamic Equipment on the Floor","authors":"Xiaoshuai Qiao, Hong Lin, Li-Na Kou","doi":"10.1109/ISTTCA53489.2021.9654500","DOIUrl":"https://doi.org/10.1109/ISTTCA53489.2021.9654500","url":null,"abstract":"In view of the prominent vibration of industrial dynamic equipment on the floor, the related Standard of vibration design is scattered, the requirements are not uniform, and the vibration calculation is complex. This article first combines the design experience to analyse the dynamic calculation methods, the value of vibration load, grading of dynamic influence, and the allowable vibration limit. And take the single beam commonly used in actual engineering as the object, starting from the natural vibration characteristics of the structure, the vibration law, vibration reduction measures and design principles are summarized. The research finally worked out the basic process and method of vibration design when the dynamic equipment is on the floor, thus providing an intuitive and clear reference for future vibration design.","PeriodicalId":383266,"journal":{"name":"2021 4th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124392651","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 : 2021-11-12DOI: 10.1109/ISTTCA53489.2021.9654618
Junhao Xie, Yu Zeng, L. Xie, Lu Guo, Peng Liu
It is to study the effect of plasticizer types and amount to sealant's mechanical property, surface energy, base material pollution performance through preparing a one-component ultralow modulus silane-modified polyether sealant. The results show that with PPG as plasticizer, the prepared sealant has the lowest modulus, maximum surface free energy (25mN/m) and best base material pollution. It is shown in plasticizer amount's effect on sealant performance that: when the DINP additive amount is 120, the tensile modulus is the lowest and M110 is 0.15MPa; when the DINP additive is 80, The surface free energy is the maximum, which is 22mN/m; when the DINP additive is 40, the base material pollution is the best.
{"title":"Study on Sealant based on Prefabricated Building ALC Panel","authors":"Junhao Xie, Yu Zeng, L. Xie, Lu Guo, Peng Liu","doi":"10.1109/ISTTCA53489.2021.9654618","DOIUrl":"https://doi.org/10.1109/ISTTCA53489.2021.9654618","url":null,"abstract":"It is to study the effect of plasticizer types and amount to sealant's mechanical property, surface energy, base material pollution performance through preparing a one-component ultralow modulus silane-modified polyether sealant. The results show that with PPG as plasticizer, the prepared sealant has the lowest modulus, maximum surface free energy (25mN/m) and best base material pollution. It is shown in plasticizer amount's effect on sealant performance that: when the DINP additive amount is 120, the tensile modulus is the lowest and M110 is 0.15MPa; when the DINP additive is 80, The surface free energy is the maximum, which is 22mN/m; when the DINP additive is 40, the base material pollution is the best.","PeriodicalId":383266,"journal":{"name":"2021 4th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121921788","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 : 2021-11-12DOI: 10.1109/ISTTCA53489.2021.9654488
Zihan Liu, Guoyou Shi, Weifeng Li
In the case of signal masking, the accuracy of global positioning system (GPS) receiver output drops sharply, or even no output. At this time, inertial navigation (INS)/GPS navigation works in pure inertial mode, and the accuracy is relatively low. In order to enable INS/GPS integrated navigation to obtain high-precision navigation information even when the GPS receiver is not working, an improved radia basis function(RBF)neural network optimized by the particle swarm algorithm is proposed to assist Kalman filter(KF), which is combined with back-propagation(BP) neural network, the convergence of RBF neural network is simulated and compared, and the experimental results show that this method can effectively suppress the filter divergence when the GPS is out of lock, and improve the accuracy of navigation and positioning.
{"title":"Research on Shipyard Integrated Navigation Algorithm based on Radial basis function neural network","authors":"Zihan Liu, Guoyou Shi, Weifeng Li","doi":"10.1109/ISTTCA53489.2021.9654488","DOIUrl":"https://doi.org/10.1109/ISTTCA53489.2021.9654488","url":null,"abstract":"In the case of signal masking, the accuracy of global positioning system (GPS) receiver output drops sharply, or even no output. At this time, inertial navigation (INS)/GPS navigation works in pure inertial mode, and the accuracy is relatively low. In order to enable INS/GPS integrated navigation to obtain high-precision navigation information even when the GPS receiver is not working, an improved radia basis function(RBF)neural network optimized by the particle swarm algorithm is proposed to assist Kalman filter(KF), which is combined with back-propagation(BP) neural network, the convergence of RBF neural network is simulated and compared, and the experimental results show that this method can effectively suppress the filter divergence when the GPS is out of lock, and improve the accuracy of navigation and positioning.","PeriodicalId":383266,"journal":{"name":"2021 4th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125764226","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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