杂波

This approach followed a novel idea: the main-lobe clutter spectrum is regular for the deviation azimuth of clutter is corresponding to its Doppler frequency, while the returns of moving targets violate this regularity, so it\'s reasonable to use the azimuth error in each Doppler channel as a detector of ground moving target.

该方法以一种新的思路，利用单脉冲雷达和波束主杂波谱区固定回波的偏角与多普勒频率相对应的规律性，将动目标回波视为对这种规律性的干扰，从而利用单脉冲测角误差在主杂波谱区进行地面极低速动目标检测。

The linear segment, convergent area, convergent time and accuracy of clutter-lock in imagery domain are analysed in detail.

对图像域杂波锁定的线性段、收敛域、收敛速度和估计精度进行了细致的讨论。

In this paper, the M-estimation method is used to obtain robust parameter estimation of DE-model in long-tailed clutter.

针对这种情况，该文利用M估计方法来实现对长拖尾杂波下DE模型参数的稳健估计。

Results show that using bin to bin automatic gain control,clutter filtering,and suitable antenna tilt management,the " wet " microburst windshear can be accurately detected 80s(approximately 6km) in front of the aircraft,meeting the certification requirements proposed by FAA.

结果表明：通过单元－单元自动增益控制、杂波滤波和天线仰角控制，可提前80s（6km）探测到&湿&微下击暴流风切变，符合FAA提出的适航要求

The design and implementation of the protection for LHCD antenna transmission line on EAST tokamak are described in detail.

介绍了EAST低杂波系统天馈线保护的设计及其实现。

The work mode and environment of the skywave over-the-horizon radar is relatively complicated. Affected by external nonstationary noise and clutters easily, the locating accuracy detection probability and data rate of this radar are different from general radar.

天波超视距雷达的工作方式和工作环境比较复杂，雷达的定位精度、检测概率和数据率与常规雷达不同，容易受外部噪声和杂波的影响。

In this paper, we consider the joint optimization of waveforms and receiving filters in the MIMO radar when the prior information of target and clutter are available.

在本文中，我们考虑使用目标物和杂波的先验资讯，同时最佳化多输入输出雷达的波形和接收滤波器。

In the range frequency and compressed azimuth time domain of Tri-channel SAR/GMTI data, the clutter is cancelled by the mutual channel, and the PRF ambiguity number can be estimated from the remaining signals.

首先将三通道SAR/GMTI数据在方位压缩后的距离频域两两对消抑制杂波，然后进行PRF模糊数估计。

Meanwhile, improved suppression approach to nonstationary interference from multipath propagation is proposed by forming adaptive STAP in fast-time domain and maintaining slow-time statistical properties of the first order sea clutter output approximately unperturbed by filter fluctuation.

同时，针对多径传播产生的非平稳干扰，在保持海杂波主成分统计特性不变条件下，通过构造空域与快时间域的二维滤波器对非平稳干扰进行抑制。

The wave-front detection technique can amplify the variations of the wave-front of the debris flow. The debris flow becomes easy to discriminate. Based on the clean images processing, the detection ratio of the multiple filtering technique can increases from 56.36% to 95.27%. The noise removal technique can effective remove the pepper-and-salt noise and Gaussian noise. The clean images will reduce the false alarm rate for detection of remaining ratio technique.

土石流波前判识」使用前处理影像，可有效的将土石流波前扰动强度放大，较易正确判识出土石流波前；「多重滤波判识」经影像前处理后，可降低因环境带来的不当讯息，结果发现，其判识率由56.36%大幅提升至95.27%；「溪床特定物残留率」判识时，易将杂讯视为特定物，滤除杂讯可有效降低误判之机率。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。