Abstract: With the rapid development of the fifth-generation communication technology, the amount of communication data has grown rapidly. In order to solve the problem of low communication efficiency, a data receiving system with higher data transmission rate and higher frequency efficiency is proposed. By analyzing the application of AD9361 technology in wireless communication systems, a MIMO ( Multiple-Input Multiple-Output)、 OFDM (Orthogonal Frequency Division Multiplexing) synchronous timing receiving system based on AD9361 is designed. This system has the advantages of high spectrum utilization, flexible demodulation mode and fast communication speed having important significance in 5G construction. The test result shows that MIMO- OFDM synchronous timing receiving system based on AD9361 has high convergence and the FPGA ( Field- Programmable Gate Array) resource occupancy of the system is generally good, and the collected data is relatively stable. In addition, during the synchronization of data receiving the system can effectively avoid the influence of bit error rate, without ISI(Inter-Symbol Interference) and ICI(Inter-Channel Interference), and the data receiving system meets the transmission channel standard which has high wireless communication stability.

Key words: AD9361 transceiver, orthogonal frequency division multiplexing, multiple-input multiple-output; field-programmable gate array, wireless communication