提高航天测量船定轨精度的途径

在“神舟”任务中,航天测量船的定轨精度直接影响着整个地面测控系统的完成质量。 在分析研究测量船误差源对近地近圆轨道确定影响的基础上,提出了提高海上定轨精度急需 解决的问题及研究方向,建立了测速数据的船姿船速修正模型,设计了自适应信息检测 算法,实现了测量船复杂误差的精确仿真并基于次序统计量研究了初轨根数的选优问题。这 些技术的应用使初轨计算半长轴外符合精度提高了3倍,为提高测量船定轨精度发挥了重 要作用。     

一种低速率语音编码技术在测量船语音通信中的应用

从分析测量船对语音通信的需求开始，主要探讨了测量船在执行载人航天任务时，如何在应急情况下做好航天员与指挥中心之间的话音通信的保障工作。为实现低速率语音通信，将混合激励线性预测(MELP)声码器这种全新的语音编解码器引入到测量船话音通信中，并为这一些新技术与原有系统的融合作了探讨。     

满足IMO规定的废气监测系统

瑞典Consilium船用设备公司推出的Salwico废气监测系统，可用于测量船上柴油机排放的废气中散发的NOx（氮氧化物）、SOx（硫氧化物）和CO2（二氧化碳）的含量。     

跟踪与数据中继卫星系统在测量船上的应用前景

介绍了国际跟踪与数据中继卫星系统（TDRSS）的基本状况与发展趋势,分析了今后测量船 利用中 继卫星系统传输高速数据的应用前景,比较了测量船加装中继卫星系统的几种方案,并 对其可行性进行了评估。     

《电讯技术》专题资料《海上测控技术》题要（二）

系统论述了渐进图像压缩编码技术的原理与实现方法，介绍了该编码技术在航天远洋测量船远程故障可视会诊系统中的应用。     

采用误差传递基函数匹配追踪的测量船误差溯源技术

针对航天测量船外弹道测控系统中影响测控精度的误差源众多、作用机理复杂、测量船现有方法难以从数据残差中自动辨识误差的难题,在给出外测数据轴系参数误差传递模型的基础上,提出了基于误差传递基函数开展匹配追踪的测量船误差溯源方法,通过误差的迭代辨识,匹配误差,定位误差,并准确估计误差值,实现测量船误差的自动识别,提高船载设备误差辨识的效率和精度。仿真分析结果证实了该方法的正确性和有效性。     

远程无线控制系统的设计与实现

由于保密的要求以及铺设专网耗资巨大等问题,测量船对远程的 标校设备无法进行有效的控制。通过选用无线网桥技术设计了一套无线控制系统,并开发了 网络控制模块以及相应的软件,进而实现了测量船对远端设备的有效控制。测试表明,系统设 计合理,控制便捷,具有可靠性、安全性和扩展性高等优点,完全适用于测量船远程控制。     

航天扩频测控系统中非相干伪码测距跳值问题分析及对策

介绍了扩频测控系统中非相干伪码测距的原理,针对航天测量船在海上校飞过程中出现的非相干伪码测距跳值问题进行了分析与研究,并从测量船测控设备软件和参数设置等方面提出了解决措施.     

航天测量船外测数据异常值自适应处理算法设计

航天测量船外测数据中蕴含有复杂的变形和船摇周期,增加了数据检择难度。针对船测数据 特性,对多种辨识方法的检择效果进行了专题研究 ,结合滑动中值平滑估计模型,构建了参数自适应信息检择算法,利用周期图方法实现了平滑 区间的动态调整,解决了测量船外测数据的纠错难 题。     

双速比齿轮箱在测量船上的运用

随着测量船上测量设备的不断更新,测量精确性以及全面性也得到提高.但是高新科技的运用也有很多限制,测量船为了准确测量,则需要低速、稳定的航行.所以为了满足正常航行,双速比齿轮箱运用在测量船上成了一个新的趋势.     

The Effect of Web-Based Information Availability on Consumers' Processing and Attitudes

Most companies use their websites to promote themselves, their products, and their services; these sites provide ever-increasing amounts of information. This paper examines the effects of the amount of information provided on a website on consumers' processing and attitudes. We propose that the amount of information has differential effects on consumers' information processing and attitudes. The influence of need for cognition is also examined. In our study, we create an experimental website with three versions, with each version providing different amounts of information. Results indicate that while information processing diminishes under high levels of information, attitudes remain favorable. In addition, the individual's need for cognition moderates the influence of the amount of information on both consumer information processing and attitudes.     

Gravitation Toward Prior Performance in Mutual Fund Advertisings: Do Consumer Investors' Processing Abilities Account for Biased Information Processing?

This study examines the cognitive processes involved in consumer investors' information processing of mutual fund characteristics. We tested whether consumer investors' limited processing abilities account for biased return perceptions, as reported in the literature. Consumer investors' processing abilities were manipulated by varying the duration of information exposure time to a mutual fund advertisement. Experimental results suggest that a longer time spent by consumer investors learning about mutual fund characteristics resulted in reduced reliance on prior fund performance as a heuristic cue, which in turn resulted in an unbiased processing of mutual fund characteristics. In contrast, when consumer investors spent less time learning about mutual fund characteristics, prior fund performance significantly affected subsequent return expectations and argument persuasiveness of the mutual fund advertisement. These findings suggest that disclaimers warning that past performance does not guarantee future results are ineffective when consumer investors have limited attention and lower processing abilities .     

航天测控和信息综合系统及技术

跨国经营,需要政府实质性支持。为了实现中央提出“走出去”战略,从政府 层面看,要结合我国企业走出去的实践,注意比较、研究和分析国外政府的经验,为 我所用。本文认为某些国家的政府支持本国企业开展对外直接投资,劳务输出和 工程承包的经验值得借鉴。     

住户统计信息系统的构建

住户统计信息系统的建立是解决统计信息效率的重要手段,是提高数据处理系统性、准确性和及时性的关键环节。通过对现有的住户统计信息系统的分析,发现其存在着信息不能共享、可公开数据少、上下级重复性工作以及使效率低下等问题,应大力实施网络版住户调查信息处理系统,加快构建设计程序框架,力争创新性的将基层的统计指标由全国统一的数据库自动生成。从而解决现居民住户统计信息系统存在的问题。     

Implications of Consumer Information Processing Research for the Design of Consumer Information Systems

The commercial success of computerized consumer information systems will depend heavily on the extent to which they help consumers make choices. A system's usefulness will be a function of both the information it contains and the capabilities it offers to process this information. These capabilities will be incorporated in the system's access “language.” This paper reviews research on how consumers process information to make choices, and discusses the implications of this research for the design of consumer information system languages. A hypothetical example is presented and contrasted briefly with available access languages.     

The Role of Context Intensity and Working Memory Capacity in the Consumer's Processing of Brand Information in Entertainment Media

Despite the increasing use of entertainment media such as movies, sport telecasts, or video games as a way to get in touch with consumers, the understanding of the cognitive processing of brand information in these environments is still limited. This current research investigates the role of two moderating factors on brand information processing in entertainment media: Context intensity and working memory capacity. Context intensity relates to the perceived level of excitement in a communication environment, while working memory capacity indicates a consumer's ability to control his or her cognitive resources. The results of an experimental laboratory study reveal that context intensity negatively affects visual attention for brand information (i.e., intensity attention assumption), while working memory capacity has a positive influence on memory for brands (i.e., capacity memory assumption). These findings hold important implications for marketing management: First, managers should place brand information in situations where context intensity is rather low in order to facilitate the target group's visual attention. Second, the frequency and duration of brand information should be adjusted to the target group's ability to cognitively process such information.     

Affirmative Disclosure of Nutrition Information and Consumers' Food Preferences: A Review

In order to evaluate a food advertising regulation proposed by the FTC, this paper examines some empirical studies of food marketing practices and their influence on consumer attitudes and behavior toward nutrition information and dietary habits. The requirement for affirmative disclosure of nutrition information may fall short of its intended goal because consumers have low motivation to use such information and inadequate comprehension of it. Moreover, the limited information processing capacity of the average person may preclude effective communication of nutrition information in a television commercial. The regulation's most likely impact would be to create awareness of nutrition information and increase the salience of nutrition in the consumer's food choices. Unless consumer education programs are coordinated with the regulatory efforts, lack of motivation and comprehension in the use of nutrition information will be a major barrier in achieving any significant improvement in the nutrition status of consumers.     

光学模数转换器的原理及发展

模数转换器（ADC）是许多信息处理系统的关键组成部分。由于电子模数转换器的缓慢进展，使其成为模拟信号和数字处理系统之间的瓶颈因素，这促使人们对采用光学技术提高模数转换器的采样速率和精度产生了兴趣。本文详细阐述了光学模数转换器（OADC）的原理及发展，对其应用及未来的发展进行了探讨。     

天基测控网与天基综合信息网相关技术述评

天基测控系统和天基综合信息将是我国重要的航天基础设施，许多工作处于研究阶段。本文对天基测控系统、天基综合信息网的相关技术以及空间数据传输标准进行了论述。     

测控信息网组网技术探讨

介绍了测控信息网组网的需求与发展趋势，以及其网络体系结构，分析了国外测控信息网的网络技术。对建立测控信息网所需的传输协议、网络管理模式、网络管理协议等进行了初步探讨。