摘要
民航系统中大多使用1090 MHz的频率,这些同频率的信号有可能在时间上发生重叠。利用信号特征值在时间上的分布来确定信号的重叠情况,进而使用投影(PA)算法对信号进行分离。利用Matlab的Simulink工具箱建立了1090 MHz信号分离系统的仿真模型,并得到了预期的效果。仿真结果表明,该算法能够有效地分离两个混叠的S模式信号,此算法对A/C模式信号依旧适用。
The frequency of 1090 MHz is generally used in aviation systems. These signals with the same frequencies may superpose over the time. The distribution of signal characteristic values over the time is used to determine the superposing situation of signals, and then Projection Algorithm（ PA） is used to separate the superposed signals. A simulation model was established by using the toolbox of Matlab Simulink for 1090 MHz signal separation, and expected results were obtained. The simulation results show that projection algorithm can effectively separate two superposed S mode signals, which is also adaptable for A / C mode signals.
出处
《电光与控制》
北大核心
2016年第3期54-58,76,共6页
Electronics Optics & Control
基金
中央高校科技业务项目(3122014P001)
