{"title":"Transmit beampattem design based on pulse compression with the mainlobe synthesized signal for MIMO radar","authors":"Yuan Liu, B. Jiu, Yuchun Shi, Hongwei Liu","doi":"10.1109/ICSPCC.2017.8242500","DOIUrl":"https://doi.org/10.1109/ICSPCC.2017.8242500","url":null,"abstract":"By simultaneously transmitting multiple waveforms, multiple-input multiple-output (MIMO) radar can obtain enhanced flexibility in transmit beampattern synthesis and signal processing. However, the most existing research works concentrate on matching the desired beampattern and neglect the following signal processing, such as pulse compression and adaptive receiving beamforming. As MIMO radar is able to synthesis different signal in different direction, pulse compression with the mainlobe synthesized signal may have obvious effect on spatial sidelobe suppression. Motivated by this issue, a novel MIMO radar transmit beampattern design method jointly considering pulse compression is proposed. Selecting matched filter according to the mainlobe synthesized signal, the cost function is established by minimizing sidelobe level. Compared to traditional orthogonal signal processing architecture, the proposed method provides large transmit gain and improved sidelobe control. Numerical simulation results show the efficiency of the proposed method.","PeriodicalId":192839,"journal":{"name":"International Conference on Signal Processing, Communications and Computing","volume":"163 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122137046","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":"Numerical Simulation and Experiment Research on Non-cavitation noise of Underwater Counterrotation Propellers","authors":"Sai Zeng, X. Su","doi":"10.1109/ICSPCC.2018.8567768","DOIUrl":"https://doi.org/10.1109/ICSPCC.2018.8567768","url":null,"abstract":"The non-cavitation noise of counter-rotation propeller is one of the key factors for detection and recognition high speed underwater vehicles. A hybrid numerical simulation method of underwater counter-rotation propeller non-cavitation noise is presented in this paper. An experimental verification is also included. The sound pressure spectrum model is presented to describe its non-cavitation noise with application of generalized acoustic analogy method. The counter-rotation propeller noise is predicted by using frequency-domain acoustic analogy. The flow field is analyzed with computation fluid dynamics based on viscous flow theory. The flow field pressure is used for acoustic spectrum prediction. The numerical simulation results are verified by cavitation-tunnel experiment. Through the study, the counter-rotation propeller non-cavitation noise is analyzed. The overall results indicated that the numerical approach is reliable for predicting non-cavitation noise of counter-rotation propeller, which is beneficial for characteristics extraction and identification of underwater high-speed vehicles","PeriodicalId":192839,"journal":{"name":"International Conference on Signal Processing, Communications and Computing","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122250323","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":"Accelerated solution of stiffness matrix for isoparametric elements based on CUDA","authors":"Binxing Hu, Xinguo Li, Hao Qiao, Zenghao Li","doi":"10.1109/ICSPCC.2017.8242497","DOIUrl":"https://doi.org/10.1109/ICSPCC.2017.8242497","url":null,"abstract":"High precision results in structural with the shortest time consumption are expected when methods are introduced to solve FEM(Finite element method). Solving of stiffness matrix assembled by isoparametric elements and solving the assembled stiffness matrix are the most time-consuming. In the previous serial algorithms, there is always a time limitation for some applications and it is hard to achieve. However, break-through in programming and feasibility of general-purpose applications executed on GPU (Graph Processing Unit), such as the parallel computing platform and programming model CUDA (Compute Unified Device Architecture) released by NVIDIA corporation, make it possible for some large scale FEM explicit dynamic simulation in real time. Authors present an approach to accelerate calculation in element stiffness matrices, taking the three-dimensional hexahedral isoparametric element in different scale as an example. A speedup of about 15 times is achieved with respect to parallel algorithms using boost on CPU. The results show that the parallel algorithm based on CUDA can satisfy the fast simulation of finite element model of structural problems with certain computational scale.","PeriodicalId":192839,"journal":{"name":"International Conference on Signal Processing, Communications and Computing","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117133445","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":"Parameters Blind Estimation for Underwater Acoustic DSSS Signal","authors":"Ningjie Huang, Yizhou Ge, Xiaoji Zhang, Qing Zhou","doi":"10.1109/ICSPCC.2018.8567822","DOIUrl":"https://doi.org/10.1109/ICSPCC.2018.8567822","url":null,"abstract":"In recent years, with the exploitation of marine resources and the rapid development of marine environmental research, underwater acoustic communication technology has been a hot topic in the communication field. Underwater acoustic signal recognition and parameter estimation therefore have become increasingly attractive. Direct spread spectrum sequence signal(DSSS) is also widely used in the field of underwater acoustic communication. However, the complexity of the seawater environment is the reason for the multipath interference and low signal-to-noise ratio(SNR), which lead to great challenges and difficulties to the research of the underwater acoustic signal recognition and parameter estimation. This paper presents two efficient algorithms for estimating the parameters of the underwater acoustic DSSS signals. An approach of Triple Correlation Function(TCF) of the underwater acoustic DSSS signals is proposed, which can estimate the Pseudo Noise(PN) code sequence blindly. The period of PN code sequence is estimated by the reprocessed power spectrum method. Theoretic analysis and experimental results show that the two approaches are very robust, working well in the underwater acoustic environment with multipath interference and low SNR.","PeriodicalId":192839,"journal":{"name":"International Conference on Signal Processing, Communications and Computing","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123016880","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":"FOD detection based on millimeter wave radar using higher order statistics","authors":"Baoshuai Wang, Wei Zhang","doi":"10.1109/ICSPCC.2017.8242467","DOIUrl":"https://doi.org/10.1109/ICSPCC.2017.8242467","url":null,"abstract":"Weak target detection is one of the key problems facing the foreign object debris (FOD) surveillance radar at the airport runway. A novel FOD detection algorithm based on higher order statistics features and support vector domain description (SVDD) classifier for 77GHz millimeter wave (mm-wave) radar is proposed in this paper. Clutter map constant false alarm rate (CFAR) is firstly applied to the measured data to suppress the heavy background clutter while the FOD returns accompanied by some false alarms are distinguished from the background clutter. Then higher order statistics features are extracted to transform the radar returns into feature domain where FOD and false alarms are more distinguishable. Finally, the one-class SVDD classifier is utilized to accomplish the classification of FOD and false alarms. Experimental results based on measured data show that the proposed method can not only successfully detect FOD but also correctly classify FOD and false alarms.","PeriodicalId":192839,"journal":{"name":"International Conference on Signal Processing, Communications and Computing","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116888675","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 interacting multiple model algorithm based on adaptive Markov transition probability","authors":"Ming-Yang Du, Daping Bi, Shuliang Wang","doi":"10.1109/ICSPCC.2017.8242592","DOIUrl":"https://doi.org/10.1109/ICSPCC.2017.8242592","url":null,"abstract":"In view of problems of the current statistical (CS) model for weak maneuvering targets tracking, this paper combines it with constant velocity (CV) model, using the interacting multiple model (IMM) algorithm to estimate target states. The traditional algorithm with fixed transition probability matrix is improved by using an adaptive method, and it can adjust transition probabilities according to the measured data of each moment automatically. The simulation results show that, whether strong or weak maneuvering targets, the new algorithm has better tracking performance than the traditional IMM algorithm.","PeriodicalId":192839,"journal":{"name":"International Conference on Signal Processing, Communications and Computing","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130435668","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 computational-efficient turbo receiver for mobile underwater acoustic channels","authors":"Xuandi Sun, Zhe Jiang, Xiaohong Shen, Xin Wang","doi":"10.1109/ICSPCC.2017.8242520","DOIUrl":"https://doi.org/10.1109/ICSPCC.2017.8242520","url":null,"abstract":"The mobile underwater acoustic channel has brought a great challenge on the encoding and decoding process. The recent development of underwater acoustic processing method aims to get a lower bit error rate(BER). However, the controdiction between lower BER and real-time transmission are not well solved. In this paper, we reach a compromise between them, we combine the turbo code with the adaptive equalization technique and use this processing method in the one-way mobile underwater acoustic(UWA) channels. In order to do so, we investigate and analyze the quality of the one-way mobile UWA channels and quantify the effect of this processing method on BER in this channel. Experimental results confirm that this method can effectively reduce the BER on the premise of maximumly ensuring the real-time transmission.","PeriodicalId":192839,"journal":{"name":"International Conference on Signal Processing, Communications and Computing","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123239745","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":"Non-linear stepped frequency waveform design method based on range ambiguity function","authors":"M. Lv, L. Cheng, Jun Yang, Wei-shuai Yin","doi":"10.1109/ICSPCC.2017.8242391","DOIUrl":"https://doi.org/10.1109/ICSPCC.2017.8242391","url":null,"abstract":"In order to suppress the range sidelobes and the grating lobes of the linear stepped frequency waveform, a non-linear stepped frequency (NSF) waveform design method by using range ambiguity function is proposed in this paper. Firstly, the reason of the sidelobes and the grating lobes occurring is analyzed based on range ambiguity function. Secondly, through compare the difference between the modified range ambiguity function, which has low sidelobes and grating lobes stepped frequency waveform, and the range ambiguity function which belongs to linear stepped frequency waveform, the designed frequencies of different sub-pluses can be obtained. In order to simplify the analysis process, due to the position and the amplitude of the sidelobes are periodic, then the non-linear frequencies design problem is transformed into a simple parameter estimation problem. At last, the frequencies can be quickly calculated through a simple formula. The simulation results show that the effectiveness of the proposed method.","PeriodicalId":192839,"journal":{"name":"International Conference on Signal Processing, Communications and Computing","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123371500","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 compressed sensing sparse channel estimation method for unique word prefixed single carrier frequency domain equalization","authors":"Qingwei Meng, Xiangru Meng, Zhiqiang Ma","doi":"10.1109/ICSPCC.2017.8242626","DOIUrl":"https://doi.org/10.1109/ICSPCC.2017.8242626","url":null,"abstract":"In this paper, a compressed sensing (CS) based sparse channel estimation method is proposed for Unique Word (UW) Prefixed SC-FDE employed in sparse wireless channels, sparse channel estimation is formulated as a typical CS problem, and UW generation schemes are discussed, in addition, DantzigD selector is used to recover sparse channel impulse response (CIR) from limited number of noisy observation measurements. Simulation results based on a typical sparse underwater acoustic channel profile show that CS based channel estimation methods outperform the widely utilized time domain and frequency domain least-square (LS) channel estimation methods in bit error rate (BER) and normalized mean-square error (NMSE). The channel estimation accuracy can be significantly improved compared to time domain LS estimation method.","PeriodicalId":192839,"journal":{"name":"International Conference on Signal Processing, Communications and Computing","volume":"236 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116430019","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}
M. Lv, Jun Yang, Ming Zhou, Xia Wu, Jian-chao Ma, L. Chen
{"title":"A Rotor Target Recognition Method Based on Transfer Learning","authors":"M. Lv, Jun Yang, Ming Zhou, Xia Wu, Jian-chao Ma, L. Chen","doi":"10.1109/ICSPCC55723.2022.9984257","DOIUrl":"https://doi.org/10.1109/ICSPCC55723.2022.9984257","url":null,"abstract":"Aiming to overcome the limitations of traditional manual search for identifiable annotation features that require professional domain knowledge and difficult to extract high-quality features, the VGG16 model-based transfer learning method is used to automatically extract and identify rotor-type targets in this paper. Firstly, based on the radar echo model of the rotor targets, the echo signals of five typical single-rotor or dual-rotor targets are obtained, and then five typical rotor targets data sets, that is AH-64, K-50, K-MAX, V-22 and WZ-9, are established. Finally, the precise identification of the rotor targets is achieved by fine-tuning the VGG16 model. The simulation results validate that the proposed method can improve the recognition rate of rotor target to nearly 99.76%.","PeriodicalId":192839,"journal":{"name":"International Conference on Signal Processing, Communications and Computing","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116451936","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}