毛刺对非相干测距值的影响  

Influence of Glitch on Non-coherent Ranging Value

作　　者：吕小凤[1] 

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《无线电工程》2013年第12期58-60,共3页Radio Engineering

摘　　要：针对实时监测目标飞行器距离在地空信息传输系统中具有的重要作用,基于非相干测距技术,介绍了一种根据上下行链路数据产生测距脉冲的算法,分析了该算法容易产生毛刺的原因以及对测距结果造成的危害,对比4种消除毛刺方法的优劣,提出了一种改进算法,并对2种算法进行仿真对比。仿真及分析结果表明,改进算法能成功消除毛刺,经过实际系统测试,能有效提高测距值的准确度,且性能良好,满足系统设计要求。Target aero-craft distance real-time monitoring is important in Ground-Air communication system. Based on non-coherent ranging technology,an algorithm is introduced generating ranging pulse according to uplink and downlink data. And analysis is given on the reasons why it tends to produce glitch easily and its harm to the ranging value. Then it compares advantages and disadvantages of four methods which can eliminate glitch. An improved algorithm is put forward. Comparison of two algorithms is done by simulation. The result shows that the improved algorithm can eliminate the glitch successfully. In actual system testing,it can also improve the accuracy of ranging value effectively,and meet system design requirement with a good performance.

关 键 词：地空信息传输系统 监测 非相干 测距 毛刺 

分 类 号：TN914[电子电信—通信与信息系统]