空间遥控机械手的声控识别与应答系统

Sound Control and Answer System for Space Teleoperator

描述了用自然语言控制空间遥控机械手执行远程操作的自然语言接口系统。该系统以孤立词语音识别为核心, 着重于系统的可靠性和实用性。为此, 在系统的开发过程中, 考虑了人类语音交互的听觉感知特点、汉语的一字一音节特点、具体识别时语音的声学模型不必与其语言学模型严格一致的特点以及环境噪声对系统性能的影响等, 提出以过渡段+ 韵母段作为识别基元, 采取多层识别策略进行识别。识别实验与仿真实验结果表明, 系统达到了预期性能指标, 声控准确率为98%

The natural language interface system for controlling space teleoperator in natural language is described. The system takes isolated word recognition as the core with emphasis on its reliability and generality. While developed, following phenomena are considered: the characteristics from psychophysics of hearing, one word with one syllable in Chinese, the acoustic model of speech not strictly being consistent with its linguistic model during recognition and the influence of ambient noise on the performance of the system. The transition part+vowel is presented as the recognition unit and the multiple stage recognition strategy is adopted. The recognition and simulation experiments of show that the performance figure of the system is achieved and the recognition rate is above 98 percent.