中文摘要：

本文以LabVIEW2010软件为基础，设计了一种母羊声音信号处理与识别系统，实现了母羊特定声音信号的采集、处理、特征值提取、数据库存储和行为识别等功能。通过对母羊在不同应激行为下的声音信号进行时域、频域和时频域分析等，提取了信号持续时间、主峰频率等特征参数，并利用Access2007建立了相关特征值数据库。实验结果表明：母羊在不同生理和外部环境刺激下的声音信号存在较大差异，该系统可以实现母羊在不同环境下的声音信号的处理、识别和报警等，具有界面友好，操作简单等优点，为进一步研究母羊声音信号特征提供了基础。

英文摘要：

Based on LabVIEW2010 software, an acoustic signal processing and recognition system for the ewe was designed in this paper, realized acoustic signal acquisition, processing, feature extraction, data storage and behavior recognition, etc. Through analysis in time domain and frequency domain, the features of signal duration, dominant signal components were extracted, and a database of feature values was established in software Access2007. Experimental results show that the sound characteristics of the ewe in different physiological and external environment differ a lot. The system can be used to detect the sound signals for the ewe in different environ- ment, and has the characteristics of friendly interface and easy operation and provides a software basis for further study of acoustic sig- nal recognition for ewes.