应用于测控系统的混沌码产生与同步技术

为了将混沌码应用于测控系统中,提出了混沌码的产生和同步方式。分析表明,基于DSP处理的产生方式和时间信息引导的同步方式更加合理可行;考虑设备资源的制约性,同时有利于接收端的同步,采用混沌跳码也不失为一种可行的方式。     

基于RapidIO协议的光纤通信系统设计与实现

为了满足嵌入式系统对高速数据传输的需求,提出了一种基于RapidIO协议的光纤通信系统 解决方案。利用光模块实现光、电信号的转换,高速收发器实现物理层协议,现场可编程门 阵列芯片实现逻辑层协议。测试结果表明,所提方案成本低,性能可靠,数据吞吐率达到 1.25Gb/s。该方案已成功应用于电子不停车收费系统中。     

突发通信中基于叠加训练的信道估计方案

针对无线突发通信中频带利用率低、信道参数获取困难等问题,提出了一种应用于突 发通信的叠加训练信道估计与检测方案。该方案将信息和训练叠加发送,通过预失真发送信 息符号使得训练与信息在频域正交,收端采用一阶统计信道估计和最大似然符号检测,并设 计了抗直流干扰的信道估计方案。仿真表明,新方案在消除训练序列的频带开销的情况下获 得了较好的信道估计和符号检测性能,与采用时分复用训练的方案相比,其有效吞吐率更优 。     

适用于高动态平台的TDM/FDMA+令牌环卫星混合多址接入协议

对卫星通信中比较常用的多址接入方式进行了比较,提出了一种固定分配与自由分配相结合的卫星混合多址接入协议,对指标性能进行了分析。试验结果表明,该协议具有业务接入灵活、卫星频带利用率高、系统实现简单等特点,适用于高动态平台卫星通信。研究内容对相关工程应用具有一定的参考价值。     

基于高速ADC和FPGA的IR-UWB相干接收机设计

为了探索超宽带（UWB）技术的空间应用,设计了一款脉冲无线超宽带（IR-UWB）的全数 字化相干接收机。本系统利用高速采样芯片ADC08D1000对IR-UWB信号进行双通道交织 采样,接下来利用Xilinx FPGA对采样数据进行降速处理。按照二分搜索、相干捕获 、脉冲跟踪的方案进行接收系统设计,并对该接收机进行了实际测试。最终实现了1 ns 脉宽的IR-UWB信号的正确接收和1 Mb/s码速率的OOK编码通信。     

航空通信系统试飞过程中的电磁兼容性评估

电磁兼容性(EMC)是航空电子产品的主要性能,也是实现系统功能的重要保证。试飞试验是 按照预想实现一种思想而提供最终证据的在机载真实环境条件下进行飞行试验,并通过试飞 数据分析结果评估系统效能,所以,EMC预测是航空电子系统试飞评估主要内容之一。论述 了基于电磁拓扑（Electromagnetic Topology）理论分析的航空通信系统EMC评估方法,该 方法已在航空通信系统试飞中被采用。     

高职英语专业学生跨文化交际能力缺失与培养策略

跨文化交际能力的培养对于英语专业学生有着极为突出的重要性,针对高职英语专业学生对英语国家社会背景了解不足、文化素养普遍较低,跨文化交际意识较薄弱的特点,提出了跨文化交际能力的培养策略。以使高职英语专业学生能够更好的适应工作岗位的需求。     

The Impact of Communication on Conflict between Expatriate and Local Managers Working in NPD Projects of MNC Subsidiaries: A Local Perspective

This study investigates the impact of communication between expatriate and local managers on two types of conflict in subsidiaries of multinational companies (MNCs) engaged in new product development (NPD). The data was collected from 438 local NPD managers who regularly collaborate and communicate with expatriate managers. The findings suggest that the quality and bidirectionality of cross-cultural communication reduce relationship conflict but increase task-related conflict. In addition, a more formalized communication style increases both relationship conflict and task conflict. The findings hold implications for MNCs in that improvements to different communication dimensions are suggested.     

Distributed group support systems: Social dynamics and design dilemmas

A “distributed group support system”; includes decision support tools and structures embedded within a computer‐mediated communication system rather than installed in a “decision room.”; It should support groups who are distributed in space but not time ("synchronous”; groups), as well as “asynchronous”; groups whose members participate at different times. Pilot studies conducted in preparation for a series of controlled experiments are reviewed in order to identify some of the problems of implementing such a system. Many of the means used by groups meeting in the same place at the same time to coordinate their activities are missing. Embedding decision support tools within a different communications medium and environment changes the way they “work.”; Speculations are presented about software tools and structuring or facilitation procedures that might replace the “missing”; coordination channels.     

The Role of Language in the Communication Process Between Business and Government: Evidence from Russian Firms

Abstract

The paper investigates how language facilitates communication process between government and business. We use Russian context to show barriers and challenges of using language in official communication between governmental authorities and Russian companies. In our work, we demonstrate how language may produce employee’s misunderstanding and discuss typical sources of ineffective usage of language. The results indicate that problematic issues of both linguistic and non-linguistic nature can lead to serious implications for successful communication between government and business in Russia. We found that documentations’ complexity, which is perceived as such due to a complicated subject area they belong to (legal, tax, etc.) and language insufficiency applied are most likely to raise multiple problems related to government’s communication with business.