Satellite frequency resource allocation and utilization rate calculation method

The invention relates to a satellite frequency resource allocation and utilization rate calculation method, which comprises the following steps of: firstly, building a two-dimensional coordinate system by taking a subnet coverage area as a coordinate space and respectively taking frequency and time as a horizontal axis and a longitudinal axis; acquiring a use time period of each allocated resource in the subnet and a corresponding use frequency band in the use time period one by one, and marking in the two-dimensional coordinate system to obtain an occupied resource area; collecting and pre-generating a to-be-allocated resource region according to a to-be-allocated resource demand, and judging whether the to-be-allocated resource region and the occupied resource region have an overlapping region or not; and if the overlapping region does not exist, generating a corresponding resource allocation decision, finally performing actual spectrum resource allocation according to the resource allocation decision, and