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2021 Signal Processing Symposium (SPSympo)最新文献

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Adaptive Anchor Pairs Selection in a TDOA-based System Through Robot Localization Error Minimization 基于机器人定位误差最小化的tdoa系统自适应锚对选择
2021 Signal Processing Symposium (SPSympo) Pub Date : 2021-09-20 DOI: 10.1109/spsympo51155.2020.9593477
Marcin Kołakowski
{"title":"Adaptive Anchor Pairs Selection in a TDOA-based System Through Robot Localization Error Minimization","authors":"Marcin Kołakowski","doi":"10.1109/spsympo51155.2020.9593477","DOIUrl":"https://doi.org/10.1109/spsympo51155.2020.9593477","url":null,"abstract":"The following paper presents an adaptive anchor pairs selection method for ultra-wideband (UWB) Time Difference of Arrival (TDOA) based positioning systems. The method divides the area covered by the system into several zones and assigns them anchor pair sets. The pair sets are determined during calibration based on localization root mean square error (RMSE). The calibration assumes driving a mobile platform equipped with a LiDAR sensor and a UWB tag through the specified zones. The robot is localized separately based on a large set of different TDOA pairs and using a LiDAR, which acts as the reference. For each zone, the TDOA pairs set for which the registered RMSE is lowest is selected and used for localization in the routine system work. The proposed method has been tested with simulations and experiments. The results for both simulated static and experimental dynamic scenarios have proven that the adaptive selection of the anchor nodes leads to an increase in localization accuracy. In the experiment, the median trajectory error for a moving person localization was at a level of 25 cm.","PeriodicalId":380515,"journal":{"name":"2021 Signal Processing Symposium (SPSympo)","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116889581","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}
引用次数: 2
Detection of Dyslexia Using Eye Tracking 眼动追踪检测阅读障碍
2021 Signal Processing Symposium (SPSympo) Pub Date : 2021-09-20 DOI: 10.1109/spsympo51155.2020.9593313
Boris Nerusil, J. Polec, Juraj Skunda
{"title":"Detection of Dyslexia Using Eye Tracking","authors":"Boris Nerusil, J. Polec, Juraj Skunda","doi":"10.1109/spsympo51155.2020.9593313","DOIUrl":"https://doi.org/10.1109/spsympo51155.2020.9593313","url":null,"abstract":"The goal of this paper is to provide another perspective and to extend the experiments conducted in Sweden in the article Screening for Dyslexia Using Eye Tracking during Reading. Our experiments were accomplished on a dataset containing 185 recordings of participants that was provided by previous researchers. Participants were categorized into two groups - High Risk (HR) and Low Risk (LR). 97 subjects (76 males and 21 females) were assigned to the HR group and 88 subjects (69 males and 19 females) were identified without dyslexia belonging to the LR group. Early detection of subjects suffering from cognitive impairment is beneficial in order to undergo therapy at an early stage and therefore the experiments were conducted on subjects attending the third grade of primary school (9 to 10 years old). Our approach achieved an accuracy score of 96.2 % (STD ±3.2) by classifying subjects into the correct groups.","PeriodicalId":380515,"journal":{"name":"2021 Signal Processing Symposium (SPSympo)","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132484324","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}
引用次数: 2
Four-Channel C-Band FMCW Radar Demonstrator with Real-Time Signal Processing and Data Presentation 具有实时信号处理和数据显示的四通道c波段FMCW雷达演示器
2021 Signal Processing Symposium (SPSympo) Pub Date : 2021-09-20 DOI: 10.1109/spsympo51155.2020.9593585
J. Julczyk, K. Stasiak, D. Gromek, M. Ciesielski
{"title":"Four-Channel C-Band FMCW Radar Demonstrator with Real-Time Signal Processing and Data Presentation","authors":"J. Julczyk, K. Stasiak, D. Gromek, M. Ciesielski","doi":"10.1109/spsympo51155.2020.9593585","DOIUrl":"https://doi.org/10.1109/spsympo51155.2020.9593585","url":null,"abstract":"Based on the long-known and well-described radar design techniques, this paper introduces a four-channel FMCW (Frequency Modulated Continuous Wave) radar system built from COTS (Commercial-Off-The-Shelf) elements for imaging purposes. Starting with a short historical view of the matter in question, general advantages, and motivations for the developed solution, the article presents the theory of operation of FMCW radar, as well as the construction of the analog part, the digital part, and the developed software. The most fundamental signal processing algorithms are also covered as a starting point for more advanced techniques, which may be further implemented. The developed radar system allows for the use of wide bandwidth - up to 1 GHz - which gives resolutions up to tenths of centimeters, and a high rate of pulse repetition frequency (8 kHz), which gives the opportunity to detect high-speed objects. The paper does not aim to provide any scientific novelties but rather to present the possibility of creating a simple and effective solution.","PeriodicalId":380515,"journal":{"name":"2021 Signal Processing Symposium (SPSympo)","volume":"206 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122605637","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}
引用次数: 3
Determining ionospheric drift and anisotropy of irregularities from LOFAR core measurements 从LOFAR核心测量确定电离层漂移和不规则的各向异性
2021 Signal Processing Symposium (SPSympo) Pub Date : 2021-09-20 DOI: 10.1109/spsympo51155.2020.9593828
M. Grzesiak, M. Pożoga, B. Matyjasiak, D. Przepiórka, H. Rothkaehl
{"title":"Determining ionospheric drift and anisotropy of irregularities from LOFAR core measurements","authors":"M. Grzesiak, M. Pożoga, B. Matyjasiak, D. Przepiórka, H. Rothkaehl","doi":"10.1109/spsympo51155.2020.9593828","DOIUrl":"https://doi.org/10.1109/spsympo51155.2020.9593828","url":null,"abstract":"We take the frozen-in assumption of the scatter evolution and derive simple formulas for characteristics of the spatiotemporal correlation function of the observed diffraction pattern. Using Low-Frequency Array (LOFAR) Cassiopeia intensity observation, we can validate the assumptions qualitatively and compute diffraction pattern velocities for three different geophysical conditions. The results allow us to attribute estimated quantities to ionospheric irregularities.","PeriodicalId":380515,"journal":{"name":"2021 Signal Processing Symposium (SPSympo)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115131221","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}
引用次数: 0
TRISH - a Triggerless Random Interleaved Sampling Hardware TRISH -一种无触发随机交错采样硬件
2021 Signal Processing Symposium (SPSympo) Pub Date : 2021-09-20 DOI: 10.1109/spsympo51155.2020.9593297
M. Rupniewski
{"title":"TRISH - a Triggerless Random Interleaved Sampling Hardware","authors":"M. Rupniewski","doi":"10.1109/spsympo51155.2020.9593297","DOIUrl":"https://doi.org/10.1109/spsympo51155.2020.9593297","url":null,"abstract":"We present a sampling hardware that can be used as a demonstration system for the triggerless random interleaved sampling method. The hardware is capable of acquiring sample-trains of lengths 2, 3 and 4 with a programmable inter-sample distance. Each sample-train consists of samples which originate from separate ADC channels. The whole system is supervised by a single board computer, Raspberry Pi, which also forms a communication interface for the system. The paper proposes a calibration method, which allows for reduction of the interchannel vo ltage offsets, equalization of the voltage gains in the individual ADC channels, as well as equalization of the inter-sample time distances.","PeriodicalId":380515,"journal":{"name":"2021 Signal Processing Symposium (SPSympo)","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127294134","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}
引用次数: 0
High-Resolution SAR Imaging with Orthogonal Sub-band Frequency Diverse Array 正交子带分频阵列高分辨率SAR成像
2021 Signal Processing Symposium (SPSympo) Pub Date : 2021-09-20 DOI: 10.1109/spsympo51155.2020.9593722
Mengdi Zhang, G. Liao, Jingwei Xu
{"title":"High-Resolution SAR Imaging with Orthogonal Sub-band Frequency Diverse Array","authors":"Mengdi Zhang, G. Liao, Jingwei Xu","doi":"10.1109/spsympo51155.2020.9593722","DOIUrl":"https://doi.org/10.1109/spsympo51155.2020.9593722","url":null,"abstract":"In this paper, a novel method is proposed to achieve high range resolution imaging with orthogonal sub-band frequency diverse array. In the proposed system, the signals transmitted by adjacent subarray has a frequency increment which is close to signal bandwidth. When transmits narrow band signals, this system has the ability of Moving Target Indication (MTI). Meanwhile, this system is capable of high-resolution imaging by splicing spectrum technique. This paper focuses on the application of the proposed method in SAR imaging to obtain high range resolution imaging by spectrum splicing. Simulation results have verified the effectiveness of the proposed method.","PeriodicalId":380515,"journal":{"name":"2021 Signal Processing Symposium (SPSympo)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130919686","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}
引用次数: 0
Overlapping-based Radio Signal Processing for SDF Location Method 基于重叠的SDF定位方法无线电信号处理
2021 Signal Processing Symposium (SPSympo) Pub Date : 2021-09-20 DOI: 10.1109/SPSympo51155.2020.9722573
Rafał Szczepanik, J. Kelner, C. Ziółkowski
{"title":"Overlapping-based Radio Signal Processing for SDF Location Method","authors":"Rafał Szczepanik, J. Kelner, C. Ziółkowski","doi":"10.1109/SPSympo51155.2020.9722573","DOIUrl":"https://doi.org/10.1109/SPSympo51155.2020.9722573","url":null,"abstract":"The localization of radio emitters is commonly used in the positioning of nodes, e.g., cellular network, radio navigation, search and rescue operations, as well as in military applications such as blue force tracking (i.e., positioning of own troops), communication (COMINT) or electronic intelligence (ELINT), and electronic warfare. Depending on the location technique used, different signal processing methods are used. In this paper, we present an efficient and adaptive signal processing method for the signal Doppler frequency (SDF) location method. This method is based on the variability of the Doppler curve, the shape of which is distinctive for the mutual position of the transmitter in relation to the receiver trajectory or vice versa. The proposed approach is based on an overlap technique that enables obtaining the desired number of Doppler frequency shifts for the SDF. The effectiveness of this solution is presented on the example of signals recorded in a real environment. The proposed method could be used in signal processing in real-time SDF applications as well as in simulation studies.","PeriodicalId":380515,"journal":{"name":"2021 Signal Processing Symposium (SPSympo)","volume":"128 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127083715","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}
引用次数: 2
Analysis of mouth click sounds used in echolocation 回声定位中嘴的咔哒声分析
2021 Signal Processing Symposium (SPSympo) Pub Date : 2021-09-20 DOI: 10.1109/spsympo51155.2020.9593698
Magdalena Bogus, M. Bujacz
{"title":"Analysis of mouth click sounds used in echolocation","authors":"Magdalena Bogus, M. Bujacz","doi":"10.1109/spsympo51155.2020.9593698","DOIUrl":"https://doi.org/10.1109/spsympo51155.2020.9593698","url":null,"abstract":"The aim of the presented study was to determine and compare basic signal properties of mouth clicks commonly made for the purpose of echolocation. It was possible thanks to the involvement of 30 sighted volunteers, who prepared mouth clicks' recordings according to the received instructions. The volunteers recorded three types of oral palatal tongue clicks - loudest, highest pitched and lowest pitched repeating each 10 times. All samples were automatically analyzed to calculate their main frequency and amplitude in relation to the loudest sound. The majority of frequencies from all mouth clicks were obtained in the range of 0.5–2kHz. The clicks were most consistent in frequency, but also lowest in amplitude when the volunteers were instructed to aim for a low pitch.","PeriodicalId":380515,"journal":{"name":"2021 Signal Processing Symposium (SPSympo)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132637170","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}
引用次数: 1
Teleassistant services using the 5G network on a remote guide for the blind persons 利用5G网络为盲人提供远程向导的电视助理服务
2021 Signal Processing Symposium (SPSympo) Pub Date : 2021-09-20 DOI: 10.1109/spsympo51155.2020.9593915
R. Kawȩcki, Pawel Oleksy, Jarosław Kawecki, P. Korbel, S. Hausman
{"title":"Teleassistant services using the 5G network on a remote guide for the blind persons","authors":"R. Kawȩcki, Pawel Oleksy, Jarosław Kawecki, P. Korbel, S. Hausman","doi":"10.1109/spsympo51155.2020.9593915","DOIUrl":"https://doi.org/10.1109/spsympo51155.2020.9593915","url":null,"abstract":"This article presents a teleassistant system for blind people used to navigate in urban space. The system uses a smartphone, Intel RealSense depth camera and a dedicated Red5 server. The data sent from the depth camera allows for accurate measurement of the distance between the blind person and the obstacles, which improves the reliability of their navigation. The transmission quality was ensured through the use of the 5G network, which was launched at the Lodz University of Technology. The article also presents short overview of new generation of the telecommunications network − 5G technology.","PeriodicalId":380515,"journal":{"name":"2021 Signal Processing Symposium (SPSympo)","volume":"316 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114718912","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}
引用次数: 0
[Title page] (标题页)
2021 Signal Processing Symposium (SPSympo) Pub Date : 2021-09-20 DOI: 10.1109/spsympo51155.2020.9593439
{"title":"[Title page]","authors":"","doi":"10.1109/spsympo51155.2020.9593439","DOIUrl":"https://doi.org/10.1109/spsympo51155.2020.9593439","url":null,"abstract":"","PeriodicalId":380515,"journal":{"name":"2021 Signal Processing Symposium (SPSympo)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127583302","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}
引用次数: 0
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