摘要
最大公因子频率及其特性在各种高精度周期性信号的测量中具有特殊的意义,因而逐渐被人们认识和广泛应用。本文在叙述这项新原理的基础上介绍了用它所设计的直接计数式彩电副载波校频仪。由于这种仪器的种种优,点,它很有可能被用来取代已有的同类型仪器。
The GCF (greatest common factor) and its characterstics have specialmeanings in the measurement of high precision periodical signals, hence it isgradually known to us and widely used.The paper presents the new principleand on its basis introduces a frequency crlibrater by directly counting usingcolour TV subcarrier. It is quite possible that this calibrater can replace exis-ting instruments of same types because of lot of its advantages.
出处
《电工电能新技术》
CSCD
北大核心
1994年第1期44-48,共5页
Advanced Technology of Electrical Engineering and Energy
关键词
副载波
频率基准
校频
彩色电视
colour TV subcarrier,frequency standard,frequency calibration,common factor