Low-cost spectrum analysis method of 5G communication system

The invention discloses a low-cost spectrum analysis method of a 5G communication system, belongs to the technical field of communication, and is used for carrying out spectrum analysis on 5G NR signals of any time node by adopting a method of carrying a frequency sweeping module by adopting a direct memory access system DMA in a time division multiplexing TDD mode. Firstly, a register is defined and used for related control over a frequency sweeping module, then data obtained by the frequency sweeping module is subjected to cross-clock-domain processing and sent to an XILINX IP core DATAMOVER, then the data is sent to a double-rate synchronous dynamic random access memory DDR in an operating system PS through a high-performance interface HP, the data is read through the PS and then stored in a text file according to the format, and then the text file is stored in a text file according to the format. And then spectrum analysis is carried out through a mathematical tool MATLAB. 本发明公开了一种5G通信系统的低成本频谱分析方法，属于通信技术领