Distance measuring method and system for radial boundary of stratum

The embodiment of the invention discloses a distance measurement method and system for a radial boundary of a stratum. The method comprises the following steps: acquiring a radar detection signal, and receiving a radar reflection signal after the radar detection signal is reflected by the stratum boundary; the radar detection signal is a sweep frequency signal; inputting the radar detection signal and the radar reflection signal into a frequency mixer to obtain a difference frequency signal; determining target reflection time corresponding to the frequency of the difference frequency signal based on the corresponding relationship between the signal frequency and the reflection time; and according to the target reflection time and the propagation speed of the radar detection signal, determining the distance between the position of the stratum boundary along the emission direction of the radar detection signal and the emission position of the radar detection signal. According to the technical scheme, the distan