1) ground clutter
地物杂波
1.
Since the strong ground clutter processing residual on the low beam position caused by the sequential scanning of the beam in radar elevation is used as ground clutter and it appears in high beam position skippingly,this will affect radar normal dete.
由于这种雷达俯仰面波束的时序扫描而产生低波位的强地物回波处理剩余,作为地物杂波在高波位时跨周期出现,影响雷达系统正常的检测与显示,为解决此问题文中提出了一种比较有效的处理方法。
2.
The ground clutter reflectivity factor Z is relatively stable.
地物杂波的回波强度相对稳定 ,对成都和新疆地区的地物杂波强度的统计表明 ,地物杂波的雷达反射因子方差分别小于 3db和 1。
3.
The Doppler weather radar data are often contaminated by ground clutter.
多普勒天气雷达的基数据经常会被地物杂波所污染,这对基数据估计(R、V、W)的准确性影响很大。
2) Ground clutter suppression
滤除地物杂波
3) direct wave and ground clutter suppression
直达波及地物杂波抑制
4) ground clutter
地杂波
1.
The SAR imaging algorithm of moving spot targets in the background of ground clutters;
地杂波背景下运动点目标的SAR成像算法
2.
To perform the simulation of ground clutter received by space-based pulse doppler(PD) radar,a method based on the analysis of cohered video is illustrated in this paper.
针对星载脉冲多普勒(PD)雷达的地杂波仿真问题,介绍了基于视频信号的模拟方法,并且给出了具体的计算公式、原理和步骤;从理论上分析了星载PD雷达的地杂波谱;最后通过仿真分析了主瓣杂波与天线视角的关系,以及主瓣杂波与地球转动之间的关系。
3.
Firstly,scattering characteristics and simulation methods of ground clutter for airborne radar are analyzed.
研究了载机和天线处于任意姿态情况下的机载脉冲多普勒雷达地杂波的相干信号仿真问题。
5) ground and sea clutter
地海杂波
6) land clutter
地杂波
1.
Based on the entropies of random variables, a method is put forward to calculate the value of the influence of different distribution land clutter on radar target detection.
从随机变量熵的角度 ,提出了计算不同分布的地杂波对雷达目标检测性能影响的定量计算方法。
2.
It is pointed out that the land clutter, when the radar grazing ange is low, will cause the time spread 0f radarecho signal, For the pseudo-random code continuous wave (PRG-CW) radar, the echo signal at a specified moment will be thesuperpostion of some spread echo signals in a period of time before this specified moment.
本文分析了在低俯视角情形时地杂波要引起雷达回波信号展宽的事实,对于伪码调相连续波雷达来讲,某一时刻的回波信号将是此前一段时间内展宽的回波在此时刻的迭加,提出了计算伪码调相连续波雷达回波信号的迭加方法,在以往对地杂波特性研究结果的基础上,同时考虑不同分辨单元间在空间和时间上的相关性质,研究该体制雷达地杂波回波信号的时间相关特性,并进行了计算机模拟,结果表明,与脉冲雷达相比,其他杂波的时间相关性将增强。
3.
The experiment of land clutter measurement, which was implemented at X-band, VV polarization in an outfield , is summarized.
对X波段、VV极化的外场地杂波试验进行了总结,包括测量系统、原理、测试内容,并提供了后向散射系数测量结果和分析。
补充资料:地物
地面上的固定性物体。如居民地(城市、村庄等)、建筑物(民居、厂房、校舍等)、道路(铁路、公路等)、江河(江、河、湖泊等)、森林(林地、果园等)。在地图上一般用规定的符号表示。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条