Abstract: The paper is based on testing, analysis and study of 1 PPS signal of Beidou second generation navigation positioning receiver output. Using the method of combing digital filter and voltage integral control, filters out interference in the process of signal transfer, make it output relatively stable 1 PPS signal to tame rubidium atomic frequency standard. It studies the model that Beidou receiver tames the rubidium atomic frequency standard. It uses some advanced technology, such as precision time interval measurement, high precision digital phase, computer automatic control, completes the tracking control rubidium atomic frequency standard, to realize the same accuracy time-frequency signal output which is equal to satelliteborne rubidium clock. It develops a set of Beidou receiver tames the rubidium atomic frequency standard, which is portable and high cost performance, and can provide the on-site measurement technical support, also can realize remote calibration and verification for frequency standard.

Key words: Frequency standard source, Time and frequency metrology, Beidou Satellite