{"title":"Telemetry Vibration Signal Analysis and Fault Detection based on Multi-scale Permutation Entropy","authors":"Hongzhou Xu, Xue Liu, Suting Qiu","doi":"10.1109/ICEICT.2019.8846312","DOIUrl":"https://doi.org/10.1109/ICEICT.2019.8846312","url":null,"abstract":"Aiming at the characteristics of strong noise and non-stationarity of telemetry vibration signals, a multi-scale entropy-based telemetry vibration signal analysis and fault detection method was proposed. Firstly, the collected signals were modified with zero-drift and tendency eliminating. Secondly, the mutual information and Cao’s algorithm were used to select the delay time and embedding dimension, we could have more excellent performance to distinguish the abnormities of telemetry vibration signal through this step. Finally, the partial mean of multi-scale permutation entropy of all signals was calculated, which were used to distinguish the abnormities of telemetry vibration signal. The measured data demonstrated the effectiveness of this method.","PeriodicalId":382686,"journal":{"name":"2019 IEEE 2nd International Conference on Electronic Information and Communication Technology (ICEICT)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121990002","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}
Congbo Wang, K. Jia, He Zhao, Zijin Li, Wei Li, Bohan Liu
{"title":"A Novel Protection Scheme for DC Distribution Network with Multi-terminal PV","authors":"Congbo Wang, K. Jia, He Zhao, Zijin Li, Wei Li, Bohan Liu","doi":"10.1109/ICEICT.2019.8846294","DOIUrl":"https://doi.org/10.1109/ICEICT.2019.8846294","url":null,"abstract":"For the sake of meeting the fast isolation of faulted areas for DC distribution network with multi-terminal PV, a novel DC protection scheme is proposed. This scheme is on the basis of the DC current differential coefficient under fault transients, which are the characteristics of the DC current. This property is banded with different settings of value to realize the protection of the DC distribution network with multi-terminal PV. The proposed scheme can realize isolation of faulted areas without communication to satisfy the speed. This scheme, which is simulated on the looped DC distribution network with multi-terminal PV, can detect network faults. The theoretical analysis and simulation results verify that the proposed protection has the effectiveness and superiority.","PeriodicalId":382686,"journal":{"name":"2019 IEEE 2nd International Conference on Electronic Information and Communication Technology (ICEICT)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116677344","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":"A Modified Power Control Algorithm for Coordinating CLI in Massive MIMO System","authors":"Mingshi Hao, Hui Zhao, Longhao Zhang","doi":"10.1109/ICEICT.2019.8846386","DOIUrl":"https://doi.org/10.1109/ICEICT.2019.8846386","url":null,"abstract":"In the fifth generation (5G) mobile communication system, massive multiple input multiple output (MIMO) and dynamic time division duplex (TDD) are key technologies which can greatly improve system performance. However, they may cause severe inter-cell cross-link interference (CLI). In allusion to the problem mentioned above, this paper presents a modified power control (MPC) algorithm which has low complexity and high flexibility for above issue. The purpose of MPC is to coordinate the CLI by dynamically adjusting the step size of power control so that the transmit power can quickly converge to the target value. And the adjustment process is first quick back slow so that transmit power decreasing rapidly in early stage can make the coordination effect on CLI more obvious. Besides, the algorithm also sets a margin to eliminate the problems that the adjustment process is endless and the power oscillates around the target. Through the simulations, it is verified that MPC can improve effectively system performances which improve SINR around 3dB and doubles the speed of adjustment process compared with other algorithms involved in simulations.","PeriodicalId":382686,"journal":{"name":"2019 IEEE 2nd International Conference on Electronic Information and Communication Technology (ICEICT)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126917185","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":"Ranging Technology Based on Parallel Combined Spread Spectrum Communication Technology","authors":"Jiaxin Chen, Shuling Lu, Qi Wang, Beiming Li","doi":"10.1109/ICEICT.2019.8846255","DOIUrl":"https://doi.org/10.1109/ICEICT.2019.8846255","url":null,"abstract":"This paper proposes a communication ranging integration technology based on parallel combined spread spectrum to improve the performance of the spread spectrum communication ranging composite system. Combining the advantages of parallel combined spread spectrum technology in transmitting information, it not only improves the information quantity and information rate transmitted by the system, but also uses the extended sequence information to correct the error of the communication ranging system and improve the stability of the system.","PeriodicalId":382686,"journal":{"name":"2019 IEEE 2nd International Conference on Electronic Information and Communication Technology (ICEICT)","volume":"211 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117301431","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":"Wideband Tunable Bandstop Frequency Selective Surface Based on Liquid Crystal","authors":"Jian-Feng Lv, Qun Wu, F. Meng","doi":"10.1109/ICEICT.2019.8846335","DOIUrl":"https://doi.org/10.1109/ICEICT.2019.8846335","url":null,"abstract":"In this paper, a tunable bandstop frequency selective surface (FSS) is designed based on liquid crystal (LC). The FSS is a sandwich structure, which contains two antisymmetric metallic layers, separated by LC. The relative permittivity of LC can be controlled between 2.5 and 3.3 by changing bias voltage. The simulation results show that continuous tunable feature of the FSS is obtained, from 17.938 GHz to 20.152 GHz, of which the tunable range is 11.63%.","PeriodicalId":382686,"journal":{"name":"2019 IEEE 2nd International Conference on Electronic Information and Communication Technology (ICEICT)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131510589","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":"Analysis of Cross-polarization Jamming for Phase Comparison Monopulse Radars","authors":"Hui Han, Xiong Xu, Haijun Wang, Huanyao Dai","doi":"10.1109/ICEICT.2019.8846402","DOIUrl":"https://doi.org/10.1109/ICEICT.2019.8846402","url":null,"abstract":"The echo signals received by different antenna units are different in phases due to the difference of the wave paths, so phase comparison monopulse radars can produce phase differences accordingly, use phase detectors to detect the azimuth error signals and furthermore capture accurate azimuth and elevation angle information. Compared with conical scanning radars, monopulse radars boast high angular accuracy, fast speed and strong capacity for resisting angle deception jamming. Cross-polarization jamming can make use of the complex structure of the monopulse antenna pattern to generate angle deception jamming. This paper has firstly given the principle for angle measurement of phase comparison monopulse radars, designed the model of the cross-polarization pattern, established the model for angle measurement of the cross-polarization jamming and presented the reduction status of the angle measurement performance in the jamming environment by means of mathematical simulation. It can be seen that antenna pattern has different polarization structure. When the jamming intensity is enough, the cross-polarization jamming will reduce the accuracy of radar angle measurement by 40% which will degrade the tracking performance of radar.","PeriodicalId":382686,"journal":{"name":"2019 IEEE 2nd International Conference on Electronic Information and Communication Technology (ICEICT)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131497042","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}
Xiong Sheng, Junwei Shi, H. Huo, Jianxing Li, Juan Chen, A. Zhang
{"title":"Sense Reconfigurable Circularly Polarized Microstrip Patch Antenna Design","authors":"Xiong Sheng, Junwei Shi, H. Huo, Jianxing Li, Juan Chen, A. Zhang","doi":"10.1109/ICEICT.2019.8846439","DOIUrl":"https://doi.org/10.1109/ICEICT.2019.8846439","url":null,"abstract":"A sense reconfigurable circularly polarized microstrip patch antenna is proposed, because a difference of the two square patches, two orthogonal line polarizations will be generated at two slightly different frequencies, and the two patches are excited by a single feedline to produce a 90° phase difference for circular polarization (CP). The presented antenna in this paper is able to switch between two polarizations by attaching a stub along the feedline. That is, right-hand CP (RHCP) and left-hand CP (LHCP). The antenna works at 2.56 GHz for RHCP and 2.54 GHz for LHCP. The impedance matching characteristic and the axial ratio (AR) of the antenna are acceptable at each operation frequency.","PeriodicalId":382686,"journal":{"name":"2019 IEEE 2nd International Conference on Electronic Information and Communication Technology (ICEICT)","volume":"13 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134034726","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":"Transient Response Analysis of Monopole Antenna Mounted on Conductive Plane Varying Different Positions","authors":"Chuanbao Du, Congguang Mao, Feng Qin, Zheng Liu","doi":"10.1109/ICEICT.2019.8846264","DOIUrl":"https://doi.org/10.1109/ICEICT.2019.8846264","url":null,"abstract":"High-altitude electromagnetic pulse (HEMP) leads a serious threaten to the communication systems with working in the frequency range of VHF or HF. For analyzing the effect of the positions of monopole antenna mounted on a conductive plane to its transient response, the combination of a typical electromagnetic computing method- method of Moment and Fourier transform is used to obtain the transient response. The procedure validation is proved with commercial electromagnetic software and radiation test. With two field distribution configurations of HEMP incident wave, this paper provides the analysis and comparison of transient response for the SC current and load current of monopole antenna port when monopole is mounted on different positions of a conductive plane. The results are meaningful to the antenna placement in practical application scenarios when considering HEMP environment.","PeriodicalId":382686,"journal":{"name":"2019 IEEE 2nd International Conference on Electronic Information and Communication Technology (ICEICT)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129543591","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":"Quickly Sample and Reconstruct for Low-level Wind Shear Data Measured by Coherent Lidar","authors":"Yuechao Ma, Sining Li, W. Lu","doi":"10.1109/ICEICT.2019.8846330","DOIUrl":"https://doi.org/10.1109/ICEICT.2019.8846330","url":null,"abstract":"Low-level wind shear is a type of catastrophic weather that can cause aircraft to flip over, stall or even crash. Therefore, it is very important to detect and recognize this phenomenon. In recent years, coherent Lidar has been proposed to detect low-level wind shear, but the common recognition methods need large computation to inverse the wind field to recognize the type. In this paper, compressive sensing (CS) is put forward to quickly sample and reconstruct wind field data, which can greatly reduce the time required for wind field recognition. The wind field data involved in this paper are obtained by simulation. The results of data reconstruction prove that the method mentioned in this paper can describe the whole information with less samples and shorten the follow-up processing time to a certain extent, and improve the real-time recognition of low-level wind shear.","PeriodicalId":382686,"journal":{"name":"2019 IEEE 2nd International Conference on Electronic Information and Communication Technology (ICEICT)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123285837","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":"High Precision Positioning and Accident Detection System for Vehicles in Traffic Tunnel","authors":"Fuzhu Fang, Zhizhong Ding","doi":"10.1109/ICEICT.2019.8846435","DOIUrl":"https://doi.org/10.1109/ICEICT.2019.8846435","url":null,"abstract":"High-precision positioning of driving vehicle is an important problem in traffic tunnels where GNSS signal is not available. It becomes more and more urgent to solve the problem when ADAS or driverless cars goes into application gradually since the positions of cars are essential parameters for the algorithms of autonomous driving and safe driving in tunnels, where video and radar system of cars may encounter problems caused by weak light, obscured sight and strong reflected radar wave. As a solution to this problem, a high precision positioning system with IEEE 802.15.4-2011 UWB as air-interface was designed and implemented. Based on Decwave’s UWB chip, the system can provide centimeter level positioning precision. However, when utilizing the UWB chip in the tunnel positioning system, efficient solutions have to be found to overcome the limitation of the chip’s transmitting range in a scenario of long tunnel, and to enlarge the system capacity which might decrease seriously as the demand of high positioning rate in a scenario of vehicles with high speed. On the other hand, tunnels are prone to traffic accidents while there is usually lack of surveillance system in tunnels located in remote areas. Aiming at this application, the presented system also implements a functionality of accident detection. System overview, related design issues, key technologies and test results are presented in this paper.","PeriodicalId":382686,"journal":{"name":"2019 IEEE 2nd International Conference on Electronic Information and Communication Technology (ICEICT)","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127239026","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}