无线电干涉测距的抗多径性能研究

发布时间：2018-05-28 21:15

本文选题：无线电干涉测距 + 多径误差　；参考：《计算机工程》2017年06期

【摘要】：为提高无线电干涉测距(RIR)在室内等多径环境中的实用性,建立RIR距离估计的多径误差模型。分析多径误差与系统参数的关系,并在2种不同的室内多径环境中利用通用软件无线电外设N210对RIR的测距性能进行实验评估,发现多径误差与系统参数的关系存在门限效应。实验结果表明,当测量带宽增加到160 MHz、频率个数为40时,RIR的均方根误差下降到1 m左右,显示了RIR在室内环境下的可行性和应用潜力。
[Abstract]:In order to improve the practicability of radio interferometric rangefinder (RIR) in indoor equal-path environment, a multipath error model for RIR distance estimation is established. This paper analyzes the relationship between multipath error and system parameters, and evaluates the ranging performance of RIR by using N210, a general software radio peripheral, in two different indoor multipath environments. It is found that there is a threshold effect in the relationship between multipath error and system parameters. The experimental results show that the root-mean-square error of RIR decreases to about 1 m when the measurement bandwidth is increased to 160 MHz and the frequency number is 40, which shows the feasibility and application potential of RIR in indoor environment.
【作者单位】：中国人民解放军理工大学指挥信息系统学院;
【基金】：国家自然科学基金面上项目(61273047,61573376) 江苏省自然科学基金青年基金(BK20130068)
【分类号】：TN014

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