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| 1 | A Novel Separability Objective Function in CNN for Feature Extraction of SAR Images显示文摘Convolutional neural network(CNN) has become a promising method for Synthetic aperture radar(SAR) target recognition. Existing CNN models aim at seeking the best separation between classes, but rarely care about the separability of them. We performs a separability measure by analyzing the property of linear separability, and proposes an objective function for CNN to extract linearly separable features. The experimental results indicate the output features are linearly separable,and the classification results are comparable with the other state of the art techniques. | GAO Fei WANG Meng WANG Jun YANG Erfu ZHOU Huiyu | 2019 | Chinese Journal of Electronics2019，28，2： | 3 |
| 2 | A novel visual attention method for target detection from SAR images显示文摘Synthetic Aperture Radar(SAR) imaging systems have been widely used in civil and military fields due to their all-weather and all-day abilities and various other advantages. However, due to image data exponentially increasing, there is a need for novel automatic target detection and recognition technologies. In recent years, the visual attention mechanism in the visual system has helped humans effectively deal with complex visual signals. In particular, biologically inspired top-down attention models have garnered much attention recently. This paper presents a visual attention model for SAR target detection, comprising a bottom-up stage and top-down process.In the bottom-up step, the Itti model is improved based on the difference between SAR and optical images. The top-down step fully utilizes prior information to further detect targets. Extensive detection experiments carried out on the benchmark Moving and Stationary Target Acquisition and Recognition(MSTAR) dataset show that, compared with typical visual models and other popular detection methods, our model has increased ability and robustness for SAR target detection, under a range of Signal to Clutter Ratio(SCR) conditions and scenes. In addition, results obtained using only the bottom-up stage are inferior to those of the proposed method, further demonstrating the effectiveness and rationality of a top-down strategy. In summary, our proposed visual attention method can be considered a potential benchmark resource for the SAR research community. | Fei GAO Aidong LIU Kai LIU Erfu YANG Amir HUSSAIN | 2019 | Chinese Journal of Aeronautics2019，32，8： | 3 |
| 3 | Eco-geographic Environment and Regional Development in Xinjiang of China显示文摘The study on relationship between eco-geographic environment(EGE) and regional development(RD) is of theoretical and practical significance to promote the comprehensive study on nature and human factors and regional coordination development.Based on the evaluation index system and models of EGE and RD, Quadrant Analysis Method(QAM) and the Coordination Degree and Coordinated Development Degree Model(CDCDDM) were applied to studying the relationship between EGE and RD in Xinjiang in this paper.The results show that Xinjiang can be divided into four type regions according to the relationship between EGE and RD, namely high coordination region(HCR), overloading development region(ODR), low coordination region(LCR) and potential development region(PDR).Most areas of Xinjiang belong to LCR which can not bear a larger population and support large-scale economic development.HCR, ODR and PDR, which are mainly distributed in piedmont oases and take basin as unit, should be focused on in the development of Xinjiang.The EGE has great influence on RD, and there is serious contradiction between them.Relevant suggestions on development strategies were put forward according to the character of different type regions, and the key regions of macro-layout of RD in Xinjiang were pointed out. | XIA Fuqiang DAI Erfu ZHENG Du WU Shaohong YANG Qinye | 2010 | Chinese Geographical Science2010，20，1： | 2 |
| 4 | Research on stateful public key based secure data aggregation model for wireless sensor networks显示文摘Data aggregation technology reduces traffic overhead of wireless sensor network and extends effective working time of the network,yet continued operation of wireless sensor networks increases the probability of aggregation nodes being captured and probability of aggregated data being tampered.Thus it will seriously affect the security performance of the network. For network security issues,a stateful public key based SDAM( secure data aggregation model) is proposed for wireless sensor networks( WSNs),which employs a new stateful public key encryption to provide efficient end-to-end security. Moreover,the security aggregation model will not impose any bound on the aggregation function property,so as to realize the low cost and high security level at the same time. | 秦丹阳 Jia Shuang Yang Songxiang Wang Erfu Ding Qun | 2017 | High Technology Letters2017，23，1： | 2 |
| 5 | Fuzzy policy reinforcement learning in cooperative multi-robot systems 显示文摘 | Gu Dongbing Yang Erfu | 2007 | Journal of Intelligent Robot Systems2007，48，1： | 1 |
| 6 | A Comparative Study of Genetic Algorithm Parameters for the Inverse Problem-based Fault Diagnosis of Liquid Rocket Propulsion Systems显示文摘当有人驾驶的空间使命被伴随时,液体火箭推进系统(LRPS ) 的差错诊断特别地是在太空发射活动的一个很重要的问题,自从安全和可靠性能被利用一个有效差错诊断系统显著地提高。当前,反的基于问题的诊断在差错诊断领域吸引了很多研究注意。这方法论为监视推进系统的健康提供新策略给基于模型的差错诊断。解决从 LRPS 的差错诊断产生的反的问题,气体是在最近的年里被采用了第一并且可得到的数字优化工具的有效选择。然而, GA 有许多控制参数预先被选并且仍然在那里缺乏健全理论工具在诊断性能经分解上分析这些参数的效果。在这篇论文,诊断结果上的 GA 参数的影响的比较研究被执行一系列数字实验进行。这研究的目的是调查最后的诊断结果的单个算法参数的贡献并且为在 LRPS 的反的基于问题的差错诊断选择 GA 参数提供合理估计。一些建设性的评论在结论被做并且以后将对到 LRPS 的差错诊断实践的 GA 的实现有用。关键词液体火箭推进系统-反的问题-差错诊断-基因算法-比较学习这个工作被杨尔富收到了的中国(号码 50106005 )的国家自然科学基础支持他来自空间技术的学校的 B.E , M.E ,和博士学位,航空学和航天学的北京大学,中国在 1994 , 1996 ,和 1999 ,分别地。从 1999 年 9 月到 2001 年 9 月,他是在在清华大学的自动化的系的一个博士后的研究人员,中国。在 2001 年 9 月,他作为一个副教授加入了航空学和航天学的北京大学。作为 JSPS (为科学的提升的日本协会) 博士后的研究家伙,从 2001 年 11 月,到 2003 年 12 月,他在系工作了机械并且在东京工学院的控制系统工程,东京,日本。他的研究兴趣包括非线性的控制理论和应用程序,机器人学,多代理人系统,进程控制,机器学习,和差错诊断。他是 IEEE 的一个成员。项洪军从空间技术的学院收到了他的 B.E, M.E,和博士学位,航空学和航天学的北京大学,中国在 1994, 1997,和 2000,分别地。从 2000 ~ 2002,他是在在航空学和航天学的北京大学的液体动力学的研究所的一个博士后的研究人员。他现在是空间技术的学院里的一个副教授。他的主要研究兴趣为火箭引擎,二阶段的液体动力学,和新推进技术的内部流动包括数字模拟,等等。Dongbing Gu 收到了学士在 1985 的度和在从北京工学院的自动控制的在 1988 两个的硕士学位,中国。他从艾塞克斯大学在 2004 在计算机科学收到了博士学位,英国。他在艾塞克斯大学在 2000 成为了计算机科学的一个讲师。他是在设计科学的系的一个访问学者,牛津大学,英国,从 1996 年 10 月到 1997 年 9 月,财政上从英国委员会由 SBFSS 的奖学金支持了。从 1988 ~ 2000,他在科技的长春大学在电子工程的系工作了,中国。他在杂志和会议出版了超过 40 篇论文,并且在中国收到了几件研究奖品。他的当前的研究兴趣包括预兆的控制,分布式的控制,机器学习,并且统计图象处理。他是 IEEE 的一个成员。张振鹏是空间技术的学院里的一个教授,航空学和航天学的北京大学,中国。从 1987 ~ 1989,他是在在乔治亚工学院的太空工程的系的一个访问学者,美国。他是空间技术的学院的负责人,航空学和航天学的北京大学。他在杂志并且在会议出版了超过 3 本书和许多论文。他的研究兴趣包括液体和稳固的火箭引擎,二阶段的液体动力学,气体动力学,健康监视和差错为火箭推进系统的诊断,和新推进技术,等等。 | Erfu Yang Hongjun Xiang Dongbing Gu Zhenpeng Zhang | 2007 | International Journal of Automation and computing2007，4，3： | 1 |
| 7 | Spatial pattern of the flood disaster risk in the protected zone of the lower Yellow River embankment显示文摘 | YANG Peiguo DAI Erfu WU Shaohong KANG Xiangwu YANG Qinye XIA Fuqiang | 2006 | Chinese Science Bulletin2006，51，B11： | 1 |
| 8 | Pre-assessment on the loss and impact caused by large-scale flood disasters显示文摘 | KANG Xiangwu WU Shaohong DAI Erfu YANG Qinye LIU Ziqiang YANG Peiguo MA Xin ZHAO Ruifeng | 2006 | Chinese Science Bulletin2006，51，B11： | 1 |
| 9 | Nonlinear formation-keeping and mooring control of multiple autonomous underwater ve- hicles 显示文摘 | YANG Erfu GU Dongbing | 2007 | IEEE/ASME Transactions on Mechatronics2007，12，： | 1 |
| 10 | Research on the reservation route of the lower Yellow River显示文摘 | LIU Yanhua KANG Xiangwu WU Shaohong YANG Qinye DAI Erfu MA Xin YANG Peiguo | 2006 | Chinese Science Bulletin2006，51，B11： | 0 |
| 11 | Target detection and recognition in SAR imagery based on KFDA显示文摘Current research on target detection and recognition from synthetic aperture radar(SAR) images is usually carried out separately. It is difficult to verify the ability of a target recognition algorithm for adapting to changes in the environment. To realize the whole process of SAR automatic target recognition(ATR), especially for the detection and recognition of vehicles, an algorithm based on kernel fisher discriminant analysis(KFDA) is proposed.First, in order to make a better description of the difference between the background and the target, KFDA is extended to the detection part. Image samples are obtained with a dual-window approach and features of the inner and outer window samples are extracted by using KFDA. The difference between the features of inner and outer window samples is compared with a threshold to determine whether a vehicle exists. Second, for the target area,we propose an improved KFDA-IMED(image Euclidean distance)combined with a support vector machine(SVM) to recognize the vehicles. Experimental results validate the performance of our method. On the detection task, our proposed method obtains not only a high detection rate but also a low false alarm rate without using any prior information. For the recognition task, our method overcomes the SAR image aspect angle sensitivity, reduces the requirements for image preprocessing and improves the recognition rate. | Fei Gao Jingyuan Mei Jinping Sun Jun Wang Erfu Yang Amir Hussain | 2015 | Journal of Systems Engineering and Electronics2015，26，4： | 0 |
| 12 | Research on Link Duration for Mobile Multihop Communication Networks显示文摘Mobile multihop communication network is an important branch of modern mobile communication system, and is an important technical support for ubiquitous communication. The random movement of the nodes makes the networking be more flexible, but the frequently changing topology will decrease the link duration between nodes significantly, which will increase the packets loss probability and affect the network communication performance. Aiming at the problem of declining link duration caused by nomadic characteristics in mobile multihop communication network, four link duration models for possible moving states are established based on different features in real networking process in this paper, which will provide reliable criterion for the optimal routing selection. Model analysis and simulation results show that the reliable route established by the proposed model will effectively extend the link duration, and can enhance the global stability of the mobile multihop information transmission, so as to provide new option to transmission reliability improvement for the mobile communication network. | Danyang Qin Shuang Jia Songxiang Yang Erfu Wang Qun Ding | 2016 | China Communications2016，13，8： | 0 |
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