摘要
为进一步提高导航接收机完好性性能,满足精密进场导航需求,在研究最小二乘残差的导航接收机自主完好性检测算法基础上,提出了一种利用风险代价函数模型来确定故障检测最佳门限的方法,新的方法从风险代价角度寻求最佳故障检测门限,从而在误警率与漏检率的矛盾统一体中找到了一个最佳平衡点,仿真结果表明了改进的导航接收机自主完好性检测算法在风险代价角度有效地降低了系统的漏检率和误警率。
In order to improve the integrity of navigation receiver and thus to meet the needs of some navigation service, and with the introduction of the duality hypothesis test theory and traditional RAIM algorithm based on least square survival, a new algorithm based on risk cost function model for determining optimal threshold of the failure monitoring is proposed. The simulation indicates that with this algorithm, both the error rate and missing monitoring rate are reduced, and a best balance point of between these two rates could also be found.
出处
《通信技术》
2012年第12期7-9,共3页
Communications Technology
关键词
RAIM算法
故障监测
代价函数
RAIM algorithml failure monitoring＂ cost function
