摘要
为保证接收机工作在多系统环境时仍具有完好性检测性能,针对传统算法在不同测距标准差时,较小测距标准差对应卫星的虚警率上升,且出现故障时对其正确检测能力下降的问题,在传统最优奇偶矢量法的基础上提出一种改进算法—加权最优奇偶矢量法。经蒙特卡罗仿真证明:该算法在有效抑制低测距标准差对应卫星虚警率的同时,也有效地提高了对此类卫星发生故障时的正确检测能力。
Based on the traditional optimal parity vector algorithm, an improved algorithm, weighted optimal parity vector algorithm, is proposed to ensure receivers＇ performance of autonomous integrity monitoring function under multisystem environment. This new algorithm effectively solves the problem of a rising false alarm probability and declining detection ability for satellites with small ranging standard deviation values compared to those with larger ones. Monte Carlo simulations show that the new algorithm effectively reduces the false alarm probability and significantly improves the ability of successful detection for satellites with small ranging standard deviation values.
出处
《信息与电子工程》
2012年第3期252-256,共5页
information and electronic engineering
基金
国家"863计划"资助项目(2007AA12Z336
2009AA12Z313)
