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2017 9th International Conference on Advanced Infocomm Technology (ICAIT)最新文献

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FPGA implementation of covariance lattice LPC method using burg algorithm 用burg算法在FPGA上实现协方差格LPC法
Pub Date : 2017-11-01 DOI: 10.1109/ICAIT.2017.8388936
Dongpeng Song, Shiwei Ren, Jin Zhuo, Hao Yang
Aiming at the defects of classical lattice algorithm of speech signal linear prediction analysis, an improved algorithm for hardware implementation is proposed in this paper. The recursive form and symmetry characteristic is used to transform the formula of intermediate covariance and three mean square errors, which increase the speed of hardware calculation. The improved algorithm is implementation on Virtex5 XC5VLX110T FPGA, with the maximum frequency of 100.220MHz, while the latency is 9.54us and 17195 LUTs are utilized. The functional test shows that the normalized MSE between MATLAB and FPGA is 1.12% and the reflection factors are all smaller than 1, which means the system is stable.
针对语音信号线性预测分析经典点阵算法的缺陷,提出了一种硬件实现的改进算法。利用递归形式和对称特性对中间协方差和三均方误差公式进行变换,提高了硬件计算的速度。改进后的算法在Virtex5 XC5VLX110T FPGA上实现,最大频率为100.220MHz,延迟为9.54us,使用了17195 lut。功能测试表明,MATLAB与FPGA的归一化MSE为1.12%,反射因子均小于1,系统稳定。
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引用次数: 0
Risk assessment method for physical hazards of consumer products based on uncertainty of use scenarios 基于使用场景不确定性的消费品物理危害风险评估方法
Pub Date : 2017-11-01 DOI: 10.1109/ICAIT.2017.8388961
Qian Wu, Ya Li, Xiaowei Lu, Xia Liu
On the basis of specifying the risk assessment processes for physical hazards of consumer products, this paper introduces the uncertainty theory, analyzes the uncertain factors of components in the consumer product usage scenarios, identifies the main physical hazards of consumer products, puts forward the principles of and methods for establishing a system of risk assessment indicators of consumer product safety, constructs the risk assessment model of consumer product safety, and establishes the rules for determining the risk level of consumer products. It refines, in an innovative manner, the probability of occurrence into the probability of usage scenario occurrence easily accessible and the likelihood of an injury occurring under a given scenario. Compared with conventional methods, the risk assessment model of physical hazards of consumer products constructed in this paper is more feasible and scientific.
本文在明确消费品物理危害风险评价流程的基础上,引入不确定性理论,分析了消费品使用场景中组成部分的不确定性因素,识别了消费品的主要物理危害,提出了建立消费品安全风险评价指标体系的原则和方法,构建了消费品安全风险评价模型。并建立了确定消费品风险等级的规则。它以一种创新的方式将发生的概率提炼为易于获取的使用场景发生的概率和在给定场景下发生伤害的可能性。与传统方法相比,本文构建的消费品物理危害风险评估模型更加可行和科学。
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引用次数: 2
A novel vehicle clustering algorithm in intersection scenario 一种新的交叉口车辆聚类算法
Pub Date : 2017-11-01 DOI: 10.1109/ICAIT.2017.8388959
Yu Zhou, Xia Wu, Ping Wang
Clustering technology gradually becomes one of the most important technologies in vehicular ad hoc network (VANET) due to improve the stability and scalability of routing protocols. To overcome the large packet loss rate and low stability of cluster head (CH) in the existing algorithms in intersection scenario, in this paper, we propose a new cluster member (CM) data updating mechanism. It is updating dynamically according to the road section of CM and the road section of CH, instead of updating periodically. Additionally, in order to select a more valid CH, we utilize the base station (BS) to collect the information of vehicles on the road sections around it, and then use the BS to carry out a new CH election by using the relative position between vehicles and the relative distance from the vehicle to the BS. Finally, a new concept of the road section queue is proposed to improve the stability of cluster in intersection scenario. The simulation results by employing SUMO and OMENT++ show that the proposed clustering algorithm can improve the packet loss rate, overhead and cluster stability significantly in intersection scenario.
由于提高了路由协议的稳定性和可扩展性,集群技术逐渐成为车载自组织网络(VANET)的重要技术之一。针对现有算法在交叉场景下簇头(CH)丢包率大、稳定性低的问题,提出了一种新的簇成员(CM)数据更新机制。它是根据CM的路段和CH的路段动态更新,而不是周期性更新。此外,为了选择更有效的CH,我们利用基站(BS)收集其周围路段的车辆信息,然后利用车辆之间的相对位置和车辆到基站的相对距离,利用BS进行新的CH选举。最后,提出了一种新的路段队列概念,以提高交叉口场景下集群的稳定性。采用SUMO和omement++进行的仿真结果表明,本文提出的聚类算法可以显著提高交叉场景下的丢包率、开销和聚类稳定性。
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引用次数: 2
Knowledge acquisition method of the expert system for maintenance and identification of missile electronic recycling equipment based on Multisim 基于Multisim的导弹电子回收设备维修识别专家系统知识获取方法
Pub Date : 2017-11-01 DOI: 10.1109/ICAIT.2017.8388889
Xuedong Xue, Xude Cheng, Le Zhang, Weixin Zhang, Yingbing Chen
In view of the outstanding problems in the recovery of a kind of missile electronic equipment, such as the effective use of repairable equipment, the loss of equipment and the seriousness of pollution, the expert system of maintenance and identification of missile electronic recovery equipment has been developed, while the knowledge acquisition has become the key issue that the expert system need to solve. This paper presents a method of obtaining expert system knowledge by using Multisim circuit simulation software and circuit principle analysis and expert experience. The circuit board fault simulation method is given in detail, and a fault simulation example is given, and the fault diagnosis expert system software development based on SVM is completed. Experiments show that the expert system knowledge base constructed by this method can effectively improve the fault diagnosis speed and recognition rate of expert system.
针对一类导弹电子设备可修设备的有效利用、设备损耗和污染严重等回收中存在的突出问题,开发了导弹电子回收设备维修与识别专家系统,而知识获取成为专家系统需要解决的关键问题。本文提出了利用Multisim电路仿真软件,结合电路原理分析和专家经验获取专家系统知识的方法。详细给出了电路板故障仿真方法,并给出了故障仿真实例,完成了基于支持向量机的故障诊断专家系统软件开发。实验表明,该方法构建的专家系统知识库能够有效提高专家系统的故障诊断速度和识别率。
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引用次数: 1
Fast ISAR imaging based on sparse fourier transform algorithm 基于稀疏傅里叶变换算法的ISAR快速成像
Pub Date : 2017-11-01 DOI: 10.1109/ICAIT.2017.8388941
Jiaqi Lin, Yuan Feng, Shengheng Liu
Range-Doppler (RD) algorithm is conventionally a favorable choice in inverse synthetic aperture radars to generate high-resolution images of the uniformly rotating targets. However, when waveforms with a large time-bandwidth product, such as the linear frequency modulated signals, are adopted to achieve a long-range detection with high resolution, the resulted computational complexity in the imaging process becomes unbearable. Taking into account the fact that the scattering points generally exhibit sparsity in both range and azimuth dimension, we present a fast RD imaging algorithm based on sparse Fourier Transform in this paper. The echo signals from the scattering points are processed in a two-dimensional manner, and a novel coherent integration method is developed to enhance the algorithm robustness in low signal-to-noise ratio scenarios. The overall computational complexity is significantly reduced without compromising the imaging resolution. The effectiveness of the proposed algorithm is validated by numerical simulation results.
距离多普勒(RD)算法是逆合成孔径雷达生成均匀旋转目标高分辨率图像的理想选择。然而,当采用时间带宽积较大的波形,如线性调频信号,实现高分辨率的远程检测时,成像过程中的计算复杂度变得难以承受。考虑到散射点在距离维和方位角维上普遍具有稀疏性,本文提出了一种基于稀疏傅里叶变换的快速RD成像算法。在对散射点回波信号进行二维处理的基础上,提出了一种新的相干积分方法,提高了算法在低信噪比情况下的鲁棒性。在不影响成像分辨率的情况下,显著降低了总体计算复杂度。数值仿真结果验证了该算法的有效性。
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引用次数: 0
Interference analysis of the integrated satellite-terrestrial networks in the composite fading channel 星地融合网络在复合衰落信道中的干扰分析
Pub Date : 2017-11-01 DOI: 10.1109/ICAIT.2017.8388929
Bo Li, Weidong Wang, Yipeng Wang, Xin Hu
This paper investigates the effects of hybrid co-channel interference (CCI) on integrated satellite-terrestrial networks (ISTN). The system performance is analyzed over the composite fading channel. More specifically, the outage probability (OP) formula is obtained for interference limited ISTN systems operating over shadowed-Rician and extended generalized-K (EGK) fading channels, for satellite and terrestrial links, respectively. The results are indicated on the basis of Fox's H function. This new formula is versatile and can serve as an effective way to estimate the performance of ISTN systems. The analysis is further illustrated by numerical evaluated results, clearly demonstrating effects of several key factors on the outage performance.
本文研究了混合共信道干扰对星地一体化网络的影响。分析了系统在复合衰落信道下的性能。更具体地说,分别得到了运行在卫星和地面链路上的阴影衰落信道和扩展广义k (EGK)衰落信道上的干扰受限ISTN系统的中断概率(OP)公式。结果是根据Fox的H函数表示的。这个新的公式是通用的,可以作为一个有效的方法来估计ISTN系统的性能。数值评估结果进一步说明了分析结果,清楚地展示了几个关键因素对停机性能的影响。
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引用次数: 2
Research on the remote assistance system of through-the-wall radar based on wireless network security communication 基于无线网络安全通信的穿墙雷达远程辅助系统研究
Pub Date : 2017-11-01 DOI: 10.1109/ICAIT.2017.8388928
Zhang Lin, Chang Tianying, Zhao Xingwen, Zhang Yanbo, Cui Hong-liang
In some scenes, such as street fighting, combatting terrorism in the city and the need for personnel hidden places, the warfighter can not go into the detection area with through-the-wall radar device. Therefore, the realization of remote assistance system for through-the-wall radar device to judge the situation of the regional staff is imperative. In this paper, a through-the-wall radar's remote assistance system based on wireless network security communication is designed and implemented. Via collecting data from the security wireless network and intelligent program analysis, the remote assistance system can give more accurate and comprehensive judgment for the situation of the regional staff. The effectiveness of this method is proved by the experiment results at the end.
在一些场景中,如巷战、城市反恐以及需要人员隐蔽的场所,作战人员使用穿墙雷达装置无法进入探测区域。因此,实现穿墙雷达装置远程辅助系统判断区域工作人员的情况势在必行。本文设计并实现了一种基于无线网络安全通信的穿墙雷达远程辅助系统。远程辅助系统通过对安防无线网络的数据采集和智能程序分析,可以对区域工作人员的情况做出更准确、全面的判断。最后的实验结果证明了该方法的有效性。
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引用次数: 0
An improved fringe frequency extraction method based on window fourier ridge 一种改进的基于窗口傅里叶脊的条纹频率提取方法
Pub Date : 2017-11-01 DOI: 10.1109/ICAIT.2017.8388820
P. Sun, Ran Zhao, Xinyu Zhang, Chunhua Hu, Qing Dai
In order to accurately extract the local frequency in fringe patterns obtained by Michelson interferometer, an improved fringe frequency extraction method was proposed. The normalized spectrum was utilized to estimate the fringe frequency, rather than searched the amplitude maximum of original spectrum. The proposed algorithm was used to extract the local frequency of fringe patterns generated by Matlab. Simulated results showed that the proposed method has a better performance in extracting fringe frequency. The new algorithm had higher precision and broader range of applications than the original window Fourier ridge algorithm.
为了准确提取迈克尔逊干涉仪获取的条纹图样中的局部频率,提出了一种改进的条纹频率提取方法。利用归一化谱估计条纹频率,而不是搜索原谱的幅值最大值。该算法用于提取Matlab生成的条纹图的局部频率。仿真结果表明,该方法具有较好的条纹频率提取效果。与原有的窗口傅里叶脊算法相比,新算法具有更高的精度和更广泛的应用范围。
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引用次数: 0
Point error effect on MDPSK space optical communication system 点误差对MDPSK空间光通信系统的影响
Pub Date : 2017-11-01 DOI: 10.1109/ICAIT.2017.8388914
Xin Li, Yuan Chen, Jin-feng Wang, Yang Liu, Xun Sun, Mi Li
Bit error rate (BER) performance is an important indicator to measure the quality of a space optical communication system. Phase modulation technology is an increasingly popular modulation format used in such a system as it provides a better BER performance. M-ary differential phase shift keying (MDPSK) is a new format of phase modulation technologies. In this paper, we discuss a situation that point error is the only mechanical system effect on a MDPSK free space optical communication system. We give the BER expression of a MDPSK system under the effect of point error. Then we numerically analyze several link parameters such as transmission power, transmission aperture, divergence angle and receiver diameter. We concentrate on analyzing how each parameter influences the BER performance of the MDPSK system. These research works are of great value for the study of communication quality in a free space optical communication system with MDPSK modulation format.
误码率性能是衡量空间光通信系统质量的重要指标。相位调制技术是一种越来越受欢迎的调制格式,因为它能提供更好的误码率性能。差分移相键控(MDPSK)是一种新型的相位调制技术。本文讨论了在MDPSK自由空间光通信系统中,点误差是唯一的机械系统效应。给出了点误差影响下MDPSK系统的误码率表达式。然后对发射功率、发射孔径、发散角和接收机直径等链路参数进行了数值分析。重点分析了各参数对MDPSK系统误码率性能的影响。这些研究工作对于研究MDPSK调制格式的自由空间光通信系统的通信质量具有重要的价值。
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引用次数: 0
Passive decoy-state quantum key distribution with orbital angular momentum and pulse position modulation 具有轨道角动量和脉冲位置调制的被动诱饵态量子密钥分配
Pub Date : 2017-11-01 DOI: 10.1109/ICAIT.2017.8388897
Lian Wang, Yuanyuan Zhou, Xuejun Zhou, Xiao Chen, HuaBin Xu
Combing the orbital angular momentum and pulse position modulation, we propose a novel passive decoy-state quantum key distribution scheme with the single-intensity two-mode source. Besides, we give the lower bound of single-photon counting rate and the upper bound of single-photon error rate. Moreover, the system performance is numerically studied. The simulations demonstrate that the performance of scheme with orbital angular momentum coding is improved in terms of error rate, key generation rate and secure transmission distance. Meanwhile, by using the pulse position modulation technology, the performance is further enhanced. And the longer the frame length, the better the system performance. Therefore, our scheme does not need to modulate the light intensity, and exploits the combination of orbital angular momentum and pulse position modulation to eliminate the basis-dependent flaw and improve the key generation rate. It has certain reference value to the realization of the system.
结合轨道角动量和脉冲位置调制,提出了一种单强度双模源的无源诱饵态量子密钥分配方案。此外,我们还给出了单光子计数率的下界和单光子错误率的上界。并对系统性能进行了数值研究。仿真结果表明,轨道角动量编码方案在误码率、密钥生成率和安全传输距离等方面都得到了改善。同时,采用脉冲位置调制技术,进一步提高了系统的性能。帧长度越长,系统性能越好。因此,我们的方案不需要调制光强,利用轨道角动量和脉冲位置调制的结合来消除基依赖缺陷,提高密钥的生成率。对系统的实现具有一定的参考价值。
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引用次数: 0
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2017 9th International Conference on Advanced Infocomm Technology (ICAIT)
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