基于语音识别技术的机载短波应急通信

通过分析作为机载远程通信主要手段的短波电台在强干扰及超远距离等极限条件下面临的失效风险,针对性地设计了基于语音识别技术的机载短波应急通信方案。该方案通过语音识别技术将语音信号转换为语义信息进行传输。采用提出的嵌入式命令词语音识别技术、说话人自适应技术和噪声鲁棒性语音识别技术提高语音识别的性能,保证基于语音识别技术的机载短波应急通信方法的实现,从而可以在上述情况下为飞行员提供应急通信保障。     

利用频谱排序和筛选的突变噪声快速估计

针对最小值控制递归平均(Minima Controlled Recursive Averaging,MCRA)算法不能快速跟踪突变噪声的问题，提出了一种基于频谱排序和筛选的突变噪声快速估计方法。该方法在MCRA算法的基础上对带噪语音的功率谱进行排序，筛选出不含语音信号的频点来估计噪声的平均功率谱；当检测到噪声突变时，对当前的平滑参数和状态变量进行校正。仿真结果表明，该方法可以将突变噪声的跟踪时间缩短90%以上；用于语音降噪处理时，音质可以提升约0.4分。该方法具有一定的工程应用价值。     

翻译中的词性转换及换形

在翻译过程中,为使译文高层次地达到语义、风格的和谐和等值,词性转换及换形是译者必用的手法。要使译文处理得与原文有相应的效果,应做到词性转换中求意合,换形中求形合。     

Cross‐country diffusion of ideology via FDI

This paper studies how foreign direct investment (FDI) contributes to ideological convergence across countries. In particular, this report focuses on whether multinational firms transfer freedom of speech (FOS) to local workers in China. Using a large source of individual survey data, it is found that those who work in foreign‐invested enterprises (FIEs), especially non‐Hong Kong, Macao and Taiwan (non‐HMT) invested enterprises tend to prefer FOS. This is in contrast to enterprises that do not work in FIEs. Such patterns are also observed in other related human rights and cultural measures common to Western democracies, but not China's political and local culture. Using policies on FDI as exogenous instruments, and other complementary identification strategies, a causal link for such an ideological transfer is established.     

实用程控语音放音板的电路原理和使用

本文给出了用 S460语言芯片构成的语音放音板的实用电路,阐明了电路原理和基本使用方法及程序。当本语音放音板用于自控系统中时,将明显提高人机界面的人性化程度,使系统变成会说话的测控系统。     

《庄子内篇》句末语气词分析

在先秦的诸子散文中,句末语气词使用的频率很高,本文针对《庄子》的内篇(共七篇)的句末语气词进行分析,总结其中的规律和特点。语气词放在句子末尾,通常表示语音停顿,同时根据所处的位置不同,配合上下文,表示判断、陈述、感叹、疑问等各种语气。     

试析委婉语的语用动机

委婉语的语用动机十分复杂。语言使用者用委婉语进行交际时,为什么会采用间接的言语表达形式,为什么会破坏合作原则而遵守礼貌原则,这值得我们去研究和探索。     

论网络空间的言论自由

网络空间的互动性、方便性、实时性和身份的虚拟性扩大了言论表达的自由度,也提高了人们的政治参与程度。但是却对公共安全、公共道德和个人隐私造成了负面影响,因此必需从立法、网络内容分级、提高公民的认识水平和判断能力等方面加强对互联网内容的管理与规范。     

Models as speech acts: the telling case of financial models

This paper intends to bring Austinian themes into methodological discussion about models. Using Austinian conceptual vocabulary, I argue that models perform actions in and outside of the academic field. This multiplicity of fields induces a variety of felicity conditions and types of performed actions. If for example, an inference from a model is judged according to some epistemological criteria in the scientific field, the representation of the world which the model carries will not be judged by the same criteria outside the scientific field. A model can be considered as a standard in a strict scientific framework, while not being used as part of public policies, or vice versa. However, we focus on the dynamics between different fields.