Radar does this to remove ground clutter, information about hills or buildings that it doesn't need.
雷达这样做是为了去除地面杂波，有关山丘或建筑物的信息，它不需要这些。
It can locate targets in all weather conditions and detect low flying aircraft in radar ground clutter.
它能在任何气候条件下发现目标，并能从雷达地面杂波中探测出低空飞行的飞机。
The characteristics of the ground and sea clutter have some important effects on the airborne PD radars with look down mode.
地海面杂波特性对主要采用下视工作方式的机载脉冲多普勒（PD）雷达具有十分重要的影响。
In the thesis, the video echo of the airborne PD radar was simulated. The simulated echoes include the signals of the target, the ground clutter and the noise.
本文研究的雷达视频回波信号模拟与仿真是针对机载下视脉冲多普勒雷达，包括目标信号、地杂波信号和噪声信号的模拟与仿真。
The key to the settlement of the question of effective detection of ground and low air targets lies in adaptive of effective clutter suppression in airborne Radar.
因此，有效地抑制这种时间非平稳和空间非平均的杂波干扰是雷达系统有效完成地面目标和低空飞行目标检测必须解决的首要问题。
This paper presents a clutter modeling method using waveform synthesis theory in order to provide ground clutter simulation for analyzing airborne radar system.
根据机载雷达地杂波的形成原理及其特点，提出了一种基于波形综合的机载雷达地杂波建模方法。
The two antenna interferometric processing is used to suppress ground clutter.
采用双通道干涉处理，抑制地面静止杂波。
This dissertation studies the ground clutter suppression of ABSR. Because low pulse repetition frequency (LPRF) and low side-lobe antennaare adopted, we focus on main-lobe clutter suppression.
本文主要研究机载战场侦察雷达的地杂波抑制，由于采用了低脉冲重复频率和低副瓣天线，我们主要考虑主杂波的抑制。
Through selecting appropriate curve length of the reflection surface, it can reduce the reflection clutter of the near ground and improve the detection ability of low altitude.
合理选择反射区曲线的长度，可减少近地物反射的杂波，提高低空目标的探测能力。
Through selecting appropriate the curve length of the reflection surface, it can reduce the reflection clutter of the near ground and improve the detection ability of low altitude.
合理选择反射区曲线的长度，可减少近地物反射的杂波，提高低空目标的探测能力。
Detection probability of ball-borne radars operating in down-looking mode is mostly restricted by ground clutter.
球载雷达采用下视探测工作模式时，其检测能力主要受地杂波制约。
This method features significant clutter cancellation and can perform the detection, radial velocity estimation and relocation of moving targets masked by ground clutters.
这种检测方法具有良好的杂波对消性能，能够完成被地面背景杂波掩盖的运动目标的检测、测速及定位。
Using an actual collected radar signal, we change the orders of the regression filter from first-order to tenth-order and obtain the corresponding ground clutter suppression ratios.
在基于一组实际采集的雷达信号的基础上，给出了回归滤波器的地物杂波抑制比随着滤波器阶数的变化情况。
The echo of short range radar detecting ground targets are analyzed in this paper, Models for targets, multipath effects and clutter are constructed.
对近程地面目标监测雷达的回波进行分析，建立相应的目标信号模型、多路径效应回波模型和杂波模型。
Using the actual collected radar echo signals, we analyze the ground clutter suppression performance of the adaptive Gaussian frequency filter.
针对实际采集的雷达回波信号，分析了自适应高斯频域滤波器的地物杂波抑制性能。
The pulse Doppler(PD)radar technique in ground-based radar is mainly applied to detecting motive targets in strong clutter jamming circumstance.
地面雷达中的脉冲多普勒（PD）技术主要用于在强杂波背景下对动目标的检测。
We analyze the frequency response characteristics of the regression filter and compare the computational complexity of regression filter with that of fifth-order elliptic IIR ground clutter filter.
分析了回归滤波器频率响应特性，比较了回归滤波器与IIR椭圆地物杂波滤波器的计算复杂度。
The Doppler spectral broadening due to nonstationary movement of target and radio-frequency clutter will decrease the veracity of target detection by high frequency ground wave (HFGW) radar.
海面低速目标的非均匀运动和射频瞬态干扰引起的多普勒谱展宽影响高频地波雷达检测目标的准确性。
Based on the interference characteristics of ground clutter, the anti-ground-clutter technique for laser fuze are summarized.
在对地杂波的干扰特征进行归纳后，综述了激光引信抗地杂波干扰技术。
This calibration method using the ground clutter as a standard will improve radar maintenance and application quality.
使用这种标定方法将大大改善天气雷达的维护和使用质量。
Aimed at the clutter overlap of PD system applied to the ground-based low altitude radar, a designing method of a different PRF with respect to each interval of scanning time was proposed.
针对地面低空雷达应用PD体制的杂波重叠问题，提出了分时分重频的设计方法。
From the orthogonal polynomials fit, this dissertation gives the basic theory of the regression filter for ground clutter suppression and the filtering process using a regression filter.
从正交多项式的拟合出发，给出了回归滤波器抑制地物杂波的基本原理及其滤波实现过程。
In this paper a method of detecting slow-moving ground targets using array antenna based on adaptive beamforming and Clutter Suppression Interferometry (CSI) is presented.
提出一种将自适应波束形成技术和杂波抑制干涉(CSI)技术相结合的阵列天线动目标检测方法。
It is the key to suppress ground clutter for airborne early warning (AEW) radars.
抑制杂波一直为机载预警(AEW)雷达信号处理的关键技术。
UWB SAR works usually in low Signal-to-Clutter Ratio (SCR) conditions in order to detect targets hidden in forest or buried in ground.
超宽带合成孔径雷达（UWB SAR）为了探测隐藏在树林中或埋于地下的目标，通常工作在低信杂比的环境中。
UWB SAR works usually in low Signal-to-Clutter Ratio (SCR) conditions in order to detect targets hidden in forest or buried in ground.
超宽带合成孔径雷达（UWB SAR）为了探测隐藏在树林中或埋于地下的目标，通常工作在低信杂比的环境中。
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