The Application of Thinned Array Time Division Multiple Phase Center Synthesis 稀疏阵时分多相位中心孔径综合及其应用
Effects of reflector errors and phase center errors of feed on the far-field pattern of reflector antennas Exterior measurement includes specification and size, surface defect, and sewing requirement. 反射面表面与馈源误差对天线方向图的影响外视质量包括规格尺寸及公差、面疵点。
Research on effect of modulated noise jamming for multiple phase center azimuth multi-beam SAR imaging 线性调频噪声对多相位中心多波束合成孔径雷达成像的影响研究
Research on Phase Center Measurement of Millimeter Feed Horn 毫米波馈源喇叭相位中心测量方法研究
It is essential for GPS receiver verification to detect the phase center deviation of antenna. 天线相位中心一致性的检测是GPS接收机检定工作中必不可少的内容。
Therefore, it is good when the feed phase center is on the front edge or directly in front of the feed antenna structure toward reflector. 为此,馈源相位中心最好在前沿,或直接在馈源天线指向反射器方向的前面。
Calculation for Phase Center of LPDA with Variable Step Variable-step Simulation Method Considering HVDC Controls With Switching Characteristics 计算对数周期偶极子天线相位中心的变步长法考虑直流系统开关特性控制的变步长仿真算法
The correction of the solid tide perturbation to the coordinate of the phase center of GPS receiver has been present. 讨论了固体潮对GPS时间传递接收机天线相位中心坐标的摄动改正。
Analysis and Compensation of Equivalent Phase Center Error in MIMO-SAR MIMO-SAR等效相位中心误差分析与补偿
A Study on the Optimal Feeds Phase Center for Distorted Reflector Antennas 变形反射面天线馈源最佳相位中心的研究
Design of Exclusive Phase center Dual band GPS Antenna 相位中心确定双频GPS天线的研制
The phase center of antenna is generally different from its geometry center. 通常天线的相位中心与其几何中心是不一致的。
This paper puts forward a new method of detecting three-aperture Synthetic Aperture Radar ( SAR) ground moving targets after studying Displaced Phase Center Antenna ( DPCA) and interferometric processing technique. 通过分析相位中心偏置天线(DPCA)技术和干涉处理的优点和缺点,该文提出了一种用三孔径合成孔径雷达(SAR)对地面运动目标进行检测的新方法。
The SAR motion target detection theory based on the Display Phase Center Antenna ( DPCA) technology was analyzed in this paper firstly. 文中首先分析了基于相位中心偏置天线(DPCA)技术的SAR动目标检测原理,然后详细介绍了基于该原理建立的一种新的双天线动目标检测模型。
The main problems in GPS technology including the system bias to SLR, its own annual variety and the change of GPS satellite antenna phase center are also discussed. 评述了GPS技术目前存在的问题,包括与SLR测量之间存在的系统偏差、GPS技术本身可能存在的周年变化和GPS卫星天线相位中心的变化。
An approximate solution for the equivalent phase center of antenna on a plane ground and several related results have been given in this paper. 本文给出了平地面上天线等效相位中心的似近解和有关的几个结果。
We can obtain the velocity of aircraft and the angle of radar antenna phase center in order to focus in azimuth accurately. 根据估计得到的多普勒中心频率和多普勒调频斜率我们计算出载机的速度和雷达天线相位中心斜视角,从而进行方位向精确聚焦。
After analyzing the characteristics of multi-aperture moving targets detecting and imaging, the paper improves the classical displaced phase center antenna ( DPCA) measurements. 本文分析了多孔径SAR动目标检测和成像的特点,改进了传统的移位相位中心天线(DPCA)运动目标检测方法。
This paper describes the design and implementation of an airborne radar ground clutter suppression system based on DPCA ( displaced phase center antenna). 介绍了基于相位中心偏置天线(DisplacedPhaseCenterAntenna,DPCA)的机载战场侦察雷达主杂波的抑制系统的设计与实现。
This paper presents analyses of the clutter correlation matrix, optimal improvement factor and effects of parameters of an airborne radar displaced phase center antenna ( DPCA) system. 本文分析了机载雷达相位中心偏移天线(DPCA)系统的杂波相关矩阵,讨论了系统的最佳改善因数以及系统参数对性能的影响。
The Research of the Antenna Phase Center Deflection of GPS in the Vertical Direction GPS天线相位中心垂直方向偏差的研究
This paper presents a concept of antenna phase center. Effects of antenna center movement on GPS ob-servables are studied. 阐述了天线相位中心的基本概念,定量研究了天线相位中心移动对GPS观测量的影响。
The relation of frequency and the antenna phase center is presented, and the three antenna method of measuring the phase center is proposed. The movement of the phase center can be determined through six S-parameter measurements in the operating frequency band. 指出了天线相位中心与频率的关系,介绍了三天线测量超宽频带相位中心的方法,通过六次S参数的测量获得了天线在超宽频带内相位中心的变化规律。
Analysis and Calculation for the Phase Center of the LPDA 对数周期偶极子天线相位中心的分析和计算
Circular polarized microstrip antennas with stable phase center are investigated and implemented. 研制了具有稳定相位中心的圆极化微带天线。
The effect on the receiver carrier phase measurements by the Phase Center Variance and the effect on the receiver pseudorange measurements by the antenna Group Delay are presented, and the anechoic chamber test results of the Phase Center Variance and the Group Delay of the antenna are presented. 给出了天线相位中心变化对接收机载波相位测距的影响和天线群时延对接收机伪码测距的影响,及天线的相位中心变化和群时延的暗室测试结果。
Antenna phase center variations and multipath effect are two major error sources of Satellite Navigation receiver surveying accuracy, which can not be ignored in high precision surveying applications. 天线相位中心的变化和多径效应是影响卫星导航接收机测量精度的显著误差源,在高精度测量应用中不能忽视。
At the same time, it has good parameters of wide band, good directivity and stable phase center and so on. 同时,其具有较宽的工作带宽、良好的方向性和稳定的相位中心等性能参数。
The design of window function, sub-matrix equivalent phase center, and the way of only taking phase of steering vector to finish sum-difference are introduced in anti-symmetric method. 其中,对称取反法重点介绍了窗函数设计和子阵等效相位中心的设计,以及仅取相位导向矢量完成和差波束方法。
Then the measurement tech-nique of the antenna phase center is studied. 接着对天线相位中心的测量技术进行初步的研究。