一、前言安培公司接受了电视艺术与科学学会的“艾米”奖,这是为了表彰它研制的螺旋扫描录象机自动扫描跟踪(AST)系统而授与的。它标志着AST这个重要器件经过了八年的试验而获得成功并达到高峰。这项成果表明,为之作出努力无疑是值得的。自从高带记录技术在六十年代首次被采用以来,AST系统和数字时基校正器一道,被称为在记录技术方面最重要的突破,同时也开 I. Introduction Ampere received the Amy Award from the Academy of Television Arts and Sciences for the award of the Automatic Scanning and Tracking (AST) system developed by Spiral Scan Video Recorder. It marks the success and peak of AST, an important device, after eight years of experimentation. This result shows that it is undoubtedly worth the effort. Since the introduction of high-band recording technology for the first time in the 1960s, the AST system, along with the digital time base corrector, has been described as the most significant breakthrough in recording technology and also