State Bounding 跟踪机动目标研究

提出一种用 State Bounding估计跟踪机动目标的算法。用预测集、观测集中心距检测目标机动 ,修正系统噪声集尺寸适应目标机动 ,很好地解决了用 state Bounding估计跟踪机动目标问题。模拟结果表明本算法与相应的 kalman滤波器的性能相比 ,有较好地机动目标跟踪能力     

A New Rank Test Nonparametric Procedure for Radar Detection in Multiple Target Situations

1.INTRODUCTIONThedetectionofsignalsinanunknownnoiseenvironmentwhileattemptingtomaintainaconstantfalsealarmrateisacommonprobleminradarsystems.Distribution-freetechniquesofsignaldetectionarethemostfamiliarused'methodsforsignaldetectionwheneverthedistributionsofthesignalandno-signaldataareunknown.Evenifthedistributionofthedataisknownatsometime,uncontrollablephenomenamayquicklychangeitandthisinturnmakesthedistributiontobevastlydifferent.Inotherwords,thedatacannotremainstableduringacertainperi…     

异质多特征数据融合在目标关联跟踪上的应用

本文讨论了利用多种异质特征数据诸如空间状态、信号幅度、多普勒频移等信息来实现多目标关联跟踪的方法。文中由品质函数的概念定义了一种关联测度,通过关联测度定量地将可能获得的多特征数据引入关联跟踪算法中。文中阐明这一关联测度是常规关联决策的推广。为验证这一方法的性能,本文还进行了计算机仿真实验,并给出实验结果。     

用于C交叉编译的HUST抽象机

HUST抽象机是专为面向多目标机的C交叉编译系统设计的一种抽象机。本文阐述了该抽象机的结构、特点及设计思想。与其他抽象机比,该抽象机执行速度快,具有查运行溢出错、越界访问数组元素错和类型转换溢出错的能力。     

Target-enriched DNA sequencing from historical type material enables a partial revision of the Madagascar giant stream frogs (genus Mantidactylus)

ABSTRACT

The subgenus Mantidactylus is a group of frogs endemic to Madagascar, including the largest anuran species on the island. Although these frogs are common and widely distributed, their taxonomy remains unclear. Two species are currently recognised, M. grandidieri and M. guttulatus, with another available name, Rana pigra, considered to be a synonym of M. grandidieri. However, molecular studies have suggested the presence of several cryptic species within the group. Additionally, due to the lack of prominent morphological features, allocating the available names to evolutionary lineages has proven challenging. In the present study, we take a first step towards solving these problems by using fragments of the 16S mitochondrial gene and RAG1 nuclear gene from all over the range of the subgenus to describe its genetic diversity. We also use a newly designed target enrichment laboratory protocol to sequence three mitochondrial fragments from five name-holding museum specimens (as old as 120 years) in order to determine to which lineages the existing names should be applied. The study of the 16S mitochondrial gene revealed 7 geographically separated lineages, distinct enough to be considered candidate species. Out of the five museum specimens analysed, four successfully yielded DNA sequences and could be attributed to one of the aforementioned lineages. Therefore, the name Mantidactylus grandidieri should be applied to the populations from North-Eastern Madagascar, while M. guttulatus refers to populations from inland localities along the Eastern coast of the island. On the other hand, the holotype of Rana pigra did not yield enough genetic material to allow definitive identification. While our data were not sufficient to assess the status of the four lineages distributed along the Eastern coast, the populations from North-Western Madagascar were highly distinct on both the mitochondrial and nuclear markers. We thus describe them as a new species, M. radaka sp. nov.

http://www.zoobank.org/urn:lsid:zoobank.org:pub:1EDDAF0D-FE37-490A-B09E-E136A0C5CB35     

Agent界面设计模式

本文用Agent和面向对象的方法,将人机界面的设计问题作为整个软件系统设计的有机组成部分,定义了界面对象及其关系、任务空间、Agent界面设计器等概念,并在此基础上提出了一般化的基于Agent的面向对象的界面设计模型。     

浅谈化工生产中危险源的管理

当前我国化工企业安全生产形势不容乐观,其中重要原因之一就是对危险源管理针对性不强所致。本文主要对危险源管理存在的问题和管理对策,提出较为科学的建议。     

网络并行计算系统的设计与实现

针对当前目标特性科研任务的迫切需求以及电磁散射建模研究的现状,有必要建立一个网络并行计算系统进行电大尺寸复杂目标电磁散射计算。本文简要介绍了该系统的硬件设计和软件需求,并指出了系统存在的不足。     

基于WSN的目标定位跟踪在C4ISRT中的应用

通过对无线传感器网络的体系结构、节点组成以及网络特点的深入分析,研究了无线传感器网络在军事方面的应用。重点研究了无线传感器网络在C4ISRT中的应用,特别是用于战场环境侦查与监控、目标定位、目标跟踪、毁伤效果评估等领域的应用。由于无线传感器网络在信息获取、传输和监测中具有独特的优势,必将成为未来C4ISRT系统中不可或缺的一部分。