论文部分内容阅读
1概述 抖晃是衡量光盘读出信号质量的一项重要技术指 标,该参数的超标将导致光盘读取产生高错误率,甚至 出现不可纠正错误,使光盘上记录的数据失效。尤其当 光盘在高倍速下工作时,由于机械振动等因素的影响, 不仅会使光盘抖晃参数变坏,而且使精确检测抖晃参数 的难度大大增加,使高速光盘抖晃参数测试成为研究和 解决高速光盘质量和光盘驱动器设计制造中的重要技术 问题。传统测量光盘抖晃的方法是采用时间间隔分析仪
1 Overview Wobbling is an important technical indicator of the quality of optical read-out signals. Exceeding this parameter will result in a high error rate of the optical disc reading, or even an uncorrectable error that invalidates the data recorded on the optical disc. Especially when the optical disc is operating at high speed, not only the parameters of the optical disc shaking but also the difficulty of accurately detecting the jitter parameters are greatly increased due to the influence of mechanical vibration and the like, which makes the testing of the high-speed optical disc shaking parameters a research and Solve high-speed optical disc quality and optical disc drive design and manufacture of important technical issues. The traditional method of measuring disk dithering is to use a time interval analyzer