1090MHz数据采集传输系统的实现

为探究1090MHz信道占用情况及信道内信号传输情况,设计开发了1090MHz数据采集传输系统。系统采用现场可编程逻辑门阵列(FPGA)与单片机(STM32)实现1090MHz信号的采集与传输;采用C++语言编写上位机软件,实现对数据采集部分的远程控制及数据的存取和显示。采集1090MHz频段的主要信号(ADS-B信号与二次雷达信号),初步观察信号的信道占用率及交织、受干扰情况,将数据有选择的保存至数据库进行后续分析。最后,在真实环境中采集1090MHz信号进行了测试,测试结果表明,该系统能够根据设置的命令参数采集传输1090MHz信道内的主要信号,实现了对信道实际状况及信道内信号传输情况的初步监测。

Implementation of 1090MHz Data Acquisition and Transmission System

In order to explore the occupancy of 1090MHz channel and the signal transmission in the channel,a 1090MHz data acquisition and transmission system is designed and developed in this paper.Field Programmable Logic Gate Array(FPGA)and Single Chip Microcomputer(STM32)are used to realize the acquisition and transmission of 1090MHz signal,and C++language is used to write the upper computer program to realize the remote control of the data acquisition part and the access and display of data.The main signals(ADS-B signal and secondary radar signal)in 1090MHz band are collected.The channel occupancy,interleaving and interference of the signals are preliminarily observed.The data are selectively saved to the database for subsequent analysis.Finally,the 1090MHz signal is collected and tested in the real environment.The test results show that the system can collect and transmit the main signals in the 1090MHz channel according to the set command parameters,and realize the preliminary monitoring of the actual situation of the channel and the signal transmission in the channel.