Atmospheric radio propagation data set (atmospheric environment and radio frequency phase difference data)

The atmospheric radio propagation data set includes atmospheric environment data and radio frequency propagation phase detection data. Atmospheric environment data is collected by temperature, humidity and pressure sensors with a sampling rate of 1. The test time lasts for 10,000 seconds. RF propagation phase jitter was measured by the phase comparison method using a digital multimeter (Keysight 34411A) with a sampling rate of 1. The measurement time is 40,000 seconds. In this letter, we propose a wireless radio frequency transmission scheme based on a dual phase-locked loop structure (DPLL). The local PLL generates a pre-compensation signal that simultaneously suppresses noise. The PLL at the far end regenerates the signal at a different frequency. The combination of the two enables stable frequency transmission over free space links.