The PULSAR system is developed with the following parts: the robust feature extraction based on auditory mechanisms, acoustic modeling with mandarin pronunciation characteristics, search space building based on WFST, and efficient global decoding scheme.

• 本研究实现的系统pulsar包括：基于听感知机理的抗噪声特征提取，针对汉语发音特点的声学建模，基于加权有限状态自动机(FST)搜索空间，融合声学模型和语言模型的高效全局解码。