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利用彩色电视付载波校正频率既经济又准确,它能在三十分钟内将本地频率标准校正到5×10~(-12)的精度,所以国外许多先进工业国家采用了这一新技术。我国目前正在积极推广应用这一技术,本文就利用彩电付载波校频的原理作一简单的介绍。一、利用彩色电视付载波校频的原理简单的说:利用彩色电视付载波校频就是利用彩色电视发播系统将原子频标传递到用户以达到校频的目的。我们知道,在彩色电视发播过程中除了发送亮度信号
The use of color TV to pay carrier correction frequency is both economical and accurate. It can correct the local frequency standard to 5 × 10 ~ (-12) within 30 minutes, so many advanced industrial countries abroad adopted this new technology. At present, China is actively promoting the application of this technology, this paper gives a brief introduction of the principle of using color TV to pay carrier frequency. First, the use of color TV subcarrier frequency of the principle of simple to say: the use of color TV subcarrier frequency is the use of color television broadcast system to atomic frequency standard delivered to the user in order to achieve the purpose of frequency. We know that in addition to sending luminance signals during color television broadcasts