GPS与GIS集成定位在铁路列车上的应用

针对GPS(全球卫星定位系统)单独定位系统存在的缺陷,对GPS与地理空间信息系统GIS相结合的铁路列车定位的工作原理、铁路GIS地图数据库的建立、GPS与GIS间的接口、GPS坐标与数字地图强制匹配的算法及GIS距离推算等问题做了初步阐述。     

美国住房反抵押贷款及引入我国可行性评析

住房反抵押贷款是重要金融创新,在发达国家变得越来越流行。它是居民以自有产权作为抵押,定期向金融机构取得的主要用于养老费用的贷款。反抵押贷款提高了住房的流动性,对提高老人生活质量有积极作用。从美国反抵押贷款发展的特点、存在问题来看,反抵押贷款业务在我国有一定的需求潜力。同时新业务在我国的市场必须正确定位,才能将潜在的需求转化为现实的市场。     

服务品牌形象提升策略研究——基于酒店业的实证研究

由于大多数的服务具有体验和信任属性,因而消费者购买服务的感知风险要高于购买产品。作为可以把"无形因素有形化"的一种外在线索,服务品牌形象在降低消费者搜寻成本和感知风险方面的作用就变得异常突出。以21 8个酒店企业作为样本,作者对服务品牌形象的改进是否会提升企业的绩效表现,以及何种服务策略会提升服务品牌形象进行了实证检验。结果显示,服务品牌形象对市场绩效有正向的影响,而市场绩效又进而正向地影响财务绩效;服务定位、品牌管理和服务创新管理对品牌形象具有显著的正向影响,顾客参与管理、顾客关系管理和服务补救管理对品牌形象不具有显著影响。服务企业应有效地管理服务定位、服务品牌和服务创新来提升服务品牌形象。     

基于手段-目的理论的饭店定位战略构建

定位战略是基于消费者、产品和竞争者三者之间的权衡做出的一种战略选择,而其中对于消费者心智结构的研究是最为重要的一部分,手段一目的理论能更好地研究消费者的关注点,据此做出饭店产品的消费者决策图,找出影响消费者的潜在因素以及消费者真正关注的因素,完成饭店定位的构建。     

Influence of country and company characteristics on international business decisions: A review,conceptual model,and propositions

This research advances four propositions and a conceptual model of country and company characteristics influencing key International Business Decisions (IBDs). The IBDs in this study are country selection and evaluation, entry mode, segmentation-targeting-positioning, and the marketing mix – the first two in the international business domain, and the latter two in the international marketing field. The conceptual model and related four propositions are advanced, based on an extensive literature review and subsequent in-depth review of 169 published research papers on major IBDs and their determinants, namely, country characteristics, including opportunities, risks, and various distances between the host country and home country, and company characteristics, which include international business experience, assets/resources, and expansion/growth strategies. Managerial implications and directions for future research are discussed.     

Supporters’ Perceptions of Benefits Delivered by Different Charity Activities

Donating time and money are traditional ways individuals support charities. Other support activities include buying charity products, attending events, or sponsoring others. The proliferation of activities means that charity marketers often face difficult decisions when designing a portfolio of support-generating activities. This research draws on the social exchange theory to examine 11 charity-support activities from the supporter’s perspective. Drawing on Australian data from a survey of 248 supporters of a wide range of charities, we use correspondence analysis to map each activity against four benefit dimensions (material, social, expressive, and personal commitment). We quantify overall supporter perceptions of benefits delivered by engaging in each activity and use multinomial logistic regression to identify how past experience can shape perceptions of activities. We discuss academic and managerial implications, including whether or not specific attributes are more useful to recruit or to retain supporters.     

利用信道状态信息的室内定位技术

多径效应导致基于信号接收强度（RSSI）的室内定位方法精度不高，采用更细粒度的物理层信道状态信息（CSI）可以区分不同路径，提高定位精度。在已有基于CSI室内定位方法的基础上，通过改进对数距离路径损耗模型，得到CSI与传输距离的关系，并结合目标位置所测得的CSI值回归出目标与发射端的距离，最后通过三边定位法预测出目标的位置坐标。实验表明，相比基于RSSI的定位方法以及已有的基于CSI的定位方法，所提方法2 m以内的误差概率提高了将近40%和20%，有效提高了定位精度。     

Mapping hotel brand positioning and competitive landscapes by text-mining user-generated content

This study uncovers hotel brand positioning and competitive landscape mapping by text-mining user-generated content (UGC). Rather than relying on a single dimension of consumer evaluation, the current study detects brand attributes by using both customer preferences as well as perceptual performance to develop meaningful insights. For this, the study combines content analysis and repertory grid analysis (RGA) to answer three key research issues. 111,986 hotel reviews from two biggest Chinese cities are used to explore and visualize the competitive landscape of six selected hotel brands across three hotel categories. Findings from the study will not only advance the existing literature on brand positioning and competitive landscape mapping but also help practitioners in developing brand positioning strategies to fight competitors within and across hotel categories.     

北斗/CDMA组合导航数据融合及其在军事物流中的应用研究

提出了一种新的组合导航定位技术-北斗/CDMA导航定位,进一步研究了如何利用数据融合技术提高定位精度与可靠性。设计了一种简化的联邦卡尔曼滤波器并给出了相应的滤波算法流程。最后提出了北斗/CDMA组合导航定位技术在军事物流监控调度系统中的应用解决方案。     

周跳探测法在北斗精度定位中的应用研究

介绍了北斗卫星导航系统的发展现状以及北斗卫星的组成,运用载波相位测量卫星信号,得出卫星观测过程中存在卫星周跳现象。在此之后,解析了该卫星导航精度定位的误差来源,一共能够分成三种不同的类型,分别指的是：与该卫星自身有关联的误差;与其信号传播路径有关联的误差;与接收机以及测站有关联的误差。在此步骤结束之后,剖析了周跳的定义与特性,除此之外也分析了周跳对精密定位带来的影响。最终,通过仿真方法得到了有无周跳状况下的高次差法的影响。