ID 原文 译文
55487 然而,自适应阵列天线在抑制干扰的过程中,破坏了GNSS信号的完整性,给GNSS接收机测量引入了新的误差。 Adaptive array antenna, however, in the process of restrain interference, destroy the GNSS signal integrity, to GNSS receiver in the introduction of the new measurement error.
55488 首先从理论上分析测量误差的来源,然后通过仿真分析自适应阵列天线对接收机码相关函数的影响,最后提出一种码/载波相位偏差估算方法,并进行了引入测量误差大小的估算。 The first theoretical analysis of the sources of measurement error, and then the simulation analysis of adaptive array antenna to the receiver code correlation function influence, finally put forward a kind of code/carrier phase error estimation method, and has carried on the introduction of measurement error size estimation.
55489 实验结果表明,自适应阵列天线引入的测量误差具有不确定性,主要是由码相位偏差引起的,引入的伪距误差甚至达到几十米。 The experimental results show that the measurement error of adaptive antenna array is introduced into uncertainty, is mainly caused by the code phase offset, the introduction of pseudorange error or even tens of meters.
55490 在高精度应用中,这些误差必须被消除或补偿。 In the applications of high precision, the error must be eliminated or compensation.
55491 利用接收工作状态模型法,对法布里-珀罗(Fabry-Perot,FP)型微带天线进行了系统方法设计与研究,并用电磁场分布理论,从全新的角度解释了FP谐振天线可获得高方向性的原因。 Using the method of receiving work state model, cesc - Perot (Fabry - Perot, FP) microstrip antenna has carried on the study and design of system method, and distribution of electromagnetic field theory, from a new Angle to explain the FP resonance antenna can obtain high directivity.
55492 同时,设计了包括频率选择性表面、介电常数分别为10.2和4. 4的不同类别的介质板在内的3种不同盖板,并将其应用在FP天线上。 At the same time, the design including the frequency selective surface, dielectric constant are 10. 2 and 4. 4 respectively the different categories of medium plate, three different cover plate, and its application on the FP antenna.
55493 在此基础上,对FP天线的辐射性能、方向性系数和增益都进行了测算和对比分析,并同时计算了其口面利用效率。 On this basis, the antenna radiation performance, the directivity of FP and gain all the calculation and comparison analysis, and calculate the utilization efficiency of its mouth at the same time.
55494 紧缩场暗室测量系统是获取雷达目标特征信号的重要技术手段,是复杂的系统工程,设计、施工、测试和应用难度大。 Squeeze a dark room the acquisition radar target characteristics measurement system is an important technical means, is a complex system engineering, design, construction, test and application is difficult.
55495 本文主要分析了测量频段、静区质量、背景噪声电平、灵敏度和动态范围等指标与反射面类型选择、总体尺寸设计、制造安装精度的约束关系,以及与电磁波收发与测量设备的测量频率与带宽、灵敏度与动态范围、设备选型与集成的约束关系,建立了定性/定量分析模型,为该类系统的设计、选型与应用提供技术指导。 This article mainly analyzes the measurement frequency, static area quality, background noise level and sensitivity and dynamic range and other indicators and reflective surface type selection, overall design, manufacturing installation precision size constraints, as well as electromagnetic wave transceiver with frequency and bandwidth of the measuring equipment, sensitivity and dynamic range, equipment selection and integration of constraint relations, the qualitative/quantitative analysis model was established, for this kind of system design, selection and application of technical guidance.
55496 研究了对方案有偏好的犹豫模糊多属性决策问题。 Studied the preference information on alternatives is hesitant fuzzy multiple attribute decision making problems.