摘要
针对1090ES模式ADS-B信号接收处理中利用传统固定门限检测算法时抗噪声性能差、弱信号检测能力弱的问题,分析了1090ES模式ADS-B信号特征、研究了该信号前导脉冲瞬时相关特征,提出一种基于前导脉冲瞬时相关特性的1090ES模式ADS-B信号检测算法,并分析了该算法在不同加性高斯白噪声(AWGN)环境下和不同信号功率条件的信号检测率,实验结果表明该算法在低信噪比、弱信号等条件下均具有较高的信号检测率,且能有效提高信号处理动态范围。
The 1090ES（ 1090 MHz Extended Squitter） model ADS-B signal process which used traditional steady threshold detection algorithm has poor anti-noise performance and limited ability of weak signal detection. The paper analyzes the characteristic of the signal,studies the instantaneous correlation of the preamble pulses,and gives an signal detection algorithm in 1090 ES model ADS-B signal process based on instantaneous correlation of preamble pulses. And the ratio of signal detection in both different AWGN environment and signal power is also analyzed. Simulations show that the algorithm provides better performance in both low SNR and weak signal condition,and improves the dynamic range of signal process effectively.
出处
《无线电通信技术》
2016年第1期51-53,共3页
Radio Communications Technology
