{"title":"JYOLO: Joint Point Cloud for Autonomous Driving 3D Object Detection","authors":"Hongpeng Tian, Lunlun Guo","doi":"10.1109/ICSPCC55723.2022.9984261","DOIUrl":"https://doi.org/10.1109/ICSPCC55723.2022.9984261","url":null,"abstract":"The camera and lidar are significant sensors for automatic driving, they can provide adequate complementary information. However, 3D point cloud object detection suffers from complexity and low accuracy. In this paper, a Joint-YOLO fusion model is proposed. It provides a low-complexity joint fusion object detection framework. First, the dilated attention is designed to pay attention to the feature resolution of correlation and reduce the number of calculations. And secondly, parallel inverted residual is constructed to connect deep and rich semantic information with high-dimensional features. Finally, the model present an efficient joint fusion structure embedded with camera-lidar detector based 2D-3D bounding box geometric and semantic information for 3D point cloud object detection.","PeriodicalId":346917,"journal":{"name":"2022 IEEE International Conference on Signal Processing, Communications and Computing (ICSPCC)","volume":"746 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123970542","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 total uncertainty measure for Atanassov’s intuitionistic fuzzy sets","authors":"Hailin Zhang, Yafei Song, Lei Lei","doi":"10.1109/ICSPCC55723.2022.9984272","DOIUrl":"https://doi.org/10.1109/ICSPCC55723.2022.9984272","url":null,"abstract":"The amount of uncertainty is important to assess the information related to uncertainty theory such as fuzzy sets. Uncertainty measure of Atanassov’s intuitionistic fuzzy sets has attracted the attention of researchers for decades. Most of proposed uncertainty measures are related to entropy measure. However, the relation between uncertainty and entropy cannot be well described, especially for the intuitionistic fuzzy sets. Other uncertainty measures developing form distance measures have the risk of information loss in applications related to decision making. In this paper, a new uncertainty measure was proposed for intuitionistic fuzzy sets, named as total uncertainty. The axiomatic properties of uncertainty measure are extended. The characteristics of the new total uncertainty measure are analyzed through strict mathematical proof and numerical examples.","PeriodicalId":346917,"journal":{"name":"2022 IEEE International Conference on Signal Processing, Communications and Computing (ICSPCC)","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129296918","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":"Secure Symbol-Level Precoding Designs via Intelligent Reflecting Surface","authors":"Yong Jin, Chuang Liu, Zewen Li","doi":"10.1109/ICSPCC55723.2022.9984307","DOIUrl":"https://doi.org/10.1109/ICSPCC55723.2022.9984307","url":null,"abstract":"Intelligent reflecting surface (IRS) as a stand-out technology that can intelligently adjust the wireless propagation environment. In addition, the symbol-level precoding (SLP) technology proposed in recent years uses known interference to enhance the quality of legitimate communication and improve physical layer security (PLS) symbol by symbol designed. This paper investigates the IRS- assisted secure MU-MISO communication system. Aiming at minimizing the transmission power, the transmit SLP matrix at the base station (BS) and the phase shifts matrix at the IRS are jointly designed under the constraints of legitimate user constructive interference (CI), eavesdropper destructive interference (DI) and IRS unit-norm. A low complexity gradient descent (GD) algorithm and manifold based Riemann conjugate gradient (RCG) algorithm are proposed to deal with the SLP problem and IRS reflection design problem respectively. Numerical results illustrate that the system performance is significantly advanced by deploying IRS in the MU-MISO secure communication system and using SLP technology.","PeriodicalId":346917,"journal":{"name":"2022 IEEE International Conference on Signal Processing, Communications and Computing (ICSPCC)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115917134","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}
Juan Shi, Lihuan Huang, Weidong Wang, Quanhe Chen, Xuan Shi
{"title":"Wideband DOA estimation via low rank and denoising covariance matrix reconstruction","authors":"Juan Shi, Lihuan Huang, Weidong Wang, Quanhe Chen, Xuan Shi","doi":"10.1109/ICSPCC55723.2022.9984440","DOIUrl":"https://doi.org/10.1109/ICSPCC55723.2022.9984440","url":null,"abstract":"1In wideband array signal processing, most existing direction of arrival (DOA) estimation methods have poor performance with finite snapshots. Aiming at this problem, this paper proposes a novel DOA estimation method for wideband signal sources using denoising covariance matrix reconstruction based on Toeplitz structure presented, followed by the low rank and denoising MUSIC method. Specifically, the wideband signal covariance matrix with finite snapshots is directly modeled as the sum of the covariance matrix of the signal sources and that of the noise according to the low rank recovery theory. Then, a convex model is established by weakening the noise subspace of the data sampling covariance matrix. Afterwords, a low rank and denoising Toeplitz covariance matrix is reconstructed via performing semidefinite programming (SDP) on the optimization target. Finally, the target angles are efficiently estimated by the improved MUSIC method. The numerical simulation results show that the improved wideband DOA (WDOA) estimation method solution outperforms the other two classical DOA estimation methods in the case of small angular separation and low signal to noise ratio(SNR).","PeriodicalId":346917,"journal":{"name":"2022 IEEE International Conference on Signal Processing, Communications and Computing (ICSPCC)","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114605572","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":"TDOA-based Target Localization Under Distance-dependent Noise Model","authors":"Feifei Pang, Pei Song, Jian-Yin Lu, Lihuan Huang, Zhixiang Gao","doi":"10.1109/ICSPCC55723.2022.9984634","DOIUrl":"https://doi.org/10.1109/ICSPCC55723.2022.9984634","url":null,"abstract":"This paper focuses on target localization utilizing time difference of arrival (TDOA) measurements in 2-dimensional spaces. Differently from existing researches that the variance of TDOA measurement noise is independent of sensor-to-target distance, we set up the more practical model under the model of the distance-dependent noises. Firstly, we derive maximum likelihood estimator (MLE) and the Cramer-Rao lower bound (CRLB). Then, this instrumental variable (IVE) and this pseudolinear estimator (PLE) are introduced. Finally, simulation results show the bias norm and RMSE performance of PLE, IVE and MLE, and compared with the CRLB.","PeriodicalId":346917,"journal":{"name":"2022 IEEE International Conference on Signal Processing, Communications and Computing (ICSPCC)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126035763","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":"SBL Based on Fixed Noise Power Estimation Applying to Conformal Array Beamforming","authors":"Miao Xu, Wenting Cui, Jidan Mei","doi":"10.1109/ICSPCC55723.2022.9984328","DOIUrl":"https://doi.org/10.1109/ICSPCC55723.2022.9984328","url":null,"abstract":"Underwater motion platforms have limited capacity of carrying and complex movements, and often carry small conformal arrays, so there is a high demand for robust high-resolution beamforming. sparse Bayesian learning (SBL) for beamforming is an algorithm which has robust high-resolution performance. This algorithm needs to estimate the noise power of the received signal, and mainly adopts the asymptotically effective estimation method of maximum likelihood, but this method needs to perform iterative calculation together with the SBL result, and the calculation is complicated. In this paper, SBL based on fixed noise power estimation applying to conformal array beamforming is proposed for the frequency broadband beamforming algorithm of the conformal array mounted on the small motion platform. The simulation and experimental results show that the main lobe and side lobes of this method have high-resolution, and this method does not need to estimate the noise power through iteration, and the calculation amount is also lower than the conventional SBL for beamforming.","PeriodicalId":346917,"journal":{"name":"2022 IEEE International Conference on Signal Processing, Communications and Computing (ICSPCC)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124149917","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}
Xinyuan Tian, Chengbing He, Jiachao Li, Run Zhang, Dengwen Chen
{"title":"Code Index Modulation CSK Spread Spectrum Underwater Acoustic Communications","authors":"Xinyuan Tian, Chengbing He, Jiachao Li, Run Zhang, Dengwen Chen","doi":"10.1109/ICSPCC55723.2022.9984262","DOIUrl":"https://doi.org/10.1109/ICSPCC55723.2022.9984262","url":null,"abstract":"Limited bandwidth restricts the data rate of spread spectrum underwater acoustic communication systems. In this paper, we propose a novel high-rate spread spectrum underwater acoustic communication approach, which utilizes spread spectrum code index modulation (CIM-SS), cyclic shift keying (CSK) and maximum ratio combined frequency domain equalization (MRC-FDE). In this approach, information bits are jointly conveyed by CIM, CSK and the M-ary PSK modulated symbols. PeCAN polyphase sequences with excellent correlation characteristics are used as spreading codes, and spreading code index modulation is to select spreading code from predefined spreading code set. CSK uses the cyclic shifted version of the selected spreading codes to obtain higher transmission efficiency than direct sequence spread spectrum (DSSS) system. A low complexity detector is designed at the receiver to detect the code index and cyclic shift value of the selected spreading code, so as to despread and demodulate the symbols. Simulation and lake experiment show that the proposed method can improve the data rate and spectrum utilization, and resist the underwater acoustic multipath effect.","PeriodicalId":346917,"journal":{"name":"2022 IEEE International Conference on Signal Processing, Communications and Computing (ICSPCC)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121845878","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-polarized Characteristics of Sea Clutter Based on Airborne Radar Measured Data","authors":"Boyu Yang, M. Jiang, Jianmin Wang, Yong Yang","doi":"10.1109/ICSPCC55723.2022.9984548","DOIUrl":"https://doi.org/10.1109/ICSPCC55723.2022.9984548","url":null,"abstract":"Cognition of sea clutter is a difficult point in the study of target detection of maritime radar. There were few studies on sea clutter cross-polarized characteristics in the past. In this study, a scattering coefficients model is presented which can be used as a supplement to the study of cross-polarized sea clutter. We analyzed the characteristics of cross-polarized sea surface scattering coefficients and simulated the clutter to noise ratio of airborne radar system. It is considered that the cross-polarized radar system can reduce the interference caused by clutter significantly. And designing a more accurate model for the cross-polarized scattering coefficients deserves further study.","PeriodicalId":346917,"journal":{"name":"2022 IEEE International Conference on Signal Processing, Communications and Computing (ICSPCC)","volume":"85 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123175662","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":"Detection of Dangerous Driving Behavior Based on CG-YOLOv5","authors":"Weiguo Zhang, Yunxia Xiao","doi":"10.1109/ICSPCC55723.2022.9984614","DOIUrl":"https://doi.org/10.1109/ICSPCC55723.2022.9984614","url":null,"abstract":"In order to avoid huge traffic accidents caused by dangerous driving behavior on the way, it is very important to detect this behavior in real time. In view of the high loss of the existing methods and the interference of the data set background, an improved YOLOv5 detection method is proposed. Firstly, the convolution block attention module mechanism is integrated in the network to enhance the feature expression ability and suppress the background interference in the process of feature fusion, so as to reduce the loss of the algorithm. Secondly, Ghost convolution is used instead of ordinary convolution operation to realize the lightweight of the detection model. The experimental results show that the recognition accuracy of this method is 99.9%, and the reasoning time under the same test data is as low as 3.895s. At the same time, the model is much smaller than the original network model, and can be effectively applied to the real-time accurate monitoring of dangerous driving behavior of drivers in the real environment.","PeriodicalId":346917,"journal":{"name":"2022 IEEE International Conference on Signal Processing, Communications and Computing (ICSPCC)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123821664","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}
Zhitao Wu, Hongtu Xie, Xiao Hu, Jinfeng He, Guoqian Wang
{"title":"Lightweight Vehicle Detection and Recognition Method Based on Improved YOLOv5 in SAR Images","authors":"Zhitao Wu, Hongtu Xie, Xiao Hu, Jinfeng He, Guoqian Wang","doi":"10.1109/ICSPCC55723.2022.9984375","DOIUrl":"https://doi.org/10.1109/ICSPCC55723.2022.9984375","url":null,"abstract":"Synthetic aperture radar (SAR) is very widely used in the military and civilian fields, but the target recognition and detection in the SAR images are relatively difficult. The existing deep learning methods for the SAR target detection and recognition has the problem of many model parameters and low efficiency, thus this paper has proposed a lightweight vehicle detection and recognition method based on the improved YOLOv5 in the SAR images. First, the lightweight processing of reducing the number of the channels is carried out, which can reduce many parameters and speed up the inference. Then, because the vehicles in the SAR image are relatively small and the detection head for detecting the large targets is redundant, the lightweight processing of removing the detection head is performed, which can shorten the running time of the proposed algorithm. Finally, the convolutional block attention module (CBAM) has been added to make the training set fit better when the network model parameters are limited, which can avoid the problem of the excessive decline in the detection and recognition performance after the network model is reduced in the parameters. The experimental results are shown to verify the correctness and the effectiveness of the proposed method.","PeriodicalId":346917,"journal":{"name":"2022 IEEE International Conference on Signal Processing, Communications and Computing (ICSPCC)","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131956179","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}