摘要
航行数据记录仪(简称VDR)是一种以安全并可恢复的方式,记录保存有关船舶事故发生前后一段时间内的船舶有关信息的仪器,对加强海上航行安全和船舶事故的分析有重要的意义,语音信息处理是VDR的重要功能之一。VDR音频系统以Windows为系统平台,主要包括音频采集,音频压缩,麦克风检测和语音回放四个部分,重点讨论了Windows系统下音频采集系统框架设计、音频压缩算法GSM6.10的设计、利用语音频谱分析进行麦克风检测和音频回放系统。
Voyage Data Recorder can record the information of ship after the accident of ship in safe and resumable mode. It can enhance the safe of the ship and provide the important effect to analysis the accident of ship. The process of audio information is one of the important functions of VDR. In this article, the audio system, which bases on the Windows, compose four parts- audio collection, compression and saving checking of microphone and reappearance of audio. Emphasis on the frame design of audio collection system, the realization of GSM6.10, checking microphone at intervals though analyzing the audio frequency and the system of audio reappearance.
出处
《火力与指挥控制》
CSCD
北大核心
2009年第8期108-109,112,共3页
Fire Control & Command Control
基金
国防预研基金资助项目(02J4.17)
