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一、引言现代的通信系统、测量系统、各种仪器设备中,广泛地采用了数字技术。尤其六十年代以后,在数据传输系统中,PCM—bit同步器受到了人们的特殊重视。由于PCM—bit同步器的性能直接影响PCM通信系统的通信质量,因此为了提高bit同步器的性能指标,全面测试其各项性能是相当必要的。本文对自动同步—bit比较的误码检测法和捕捉时间、同步带宽、捕捉带宽、相位抖动等同步性能的测量方法作了比较详细的介绍。
I. Introduction Modern communication systems, measurement systems, various instruments and equipment, widely used in digital technology. Especially since the 1960s, PCM-bit synchronizers have received special attention in data transmission systems. Since the performance of PCM-bit synchronizer directly affects the communication quality of PCM communication system, in order to improve the performance of bit synchronizer, it is quite necessary to fully test its performance. In this paper, automatic synchronization-bit comparison error detection and capture time, synchronization bandwidth, capture bandwidth, phase jitter and other synchronization performance measurement methods are described in more detail.