The Role of External Environmental Factors in Frequency Transmission Systems and Corresponding Countermeasures

Abstract

Frequency transmission technology plays a crucial role in modern communication and precision measurement systems, with its stability directly impacting the performance and reliability of these systems. However, external environmental factors such as temperature, testing equipment, and power supply systems have a significant effect on the phase stability of microwave signals. These factors can lead to phase jitter, frequency drift, and signal attenuation, thereby affecting the overall stability and accuracy of the system. This paper discusses the mechanisms by which key environmental factors influence frequency transmission systems based on experimental results, analyzes system performance under various testing conditions, and proposes optimization strategies to enhance the stability of microwave systems in complex environments. Finally, under optimal external conditions, the system's electrical-optical-electrical stability over a thousand seconds was tested and found to be 1.27×10−17. Theoretically, by increasing the measurement duration by two orders of magnitude, the measurement stability is expected to improve by two orders as well. As a result, the daily stability testing precision for transmitting frequency signals around 9 GHz is anticipated to reach the 10−19 level.

Keywords: frequency dissemination, phase stability