新型选频电平表和电平振荡器的原理、性能与检测

The Fundamental、Functian、Detection and Measurement of New Type Selective Level Meter and Level Oscillator

数字直接频率合成技术 (DDS)可使频率稳定度达到晶振的水平 ,采用DDS技术的新型选频电平表和电平振荡器的技术性能将显著提高。

The technic capability of new type Selective Level Meter and Level Oscillator adopting Direct Digital Synthesis(DDS)is advanced notability,it makes stability of frequency achieve level of crystal?