ID |
原文 |
译文 |
13104 |
在超宽带相位干涉仪体制测角系统的使用过程中发现,该体制对天线极化特性敏感,严重影响测角精度,尤其在低频段表现明显。 |
In the application of ultra-wideband antenna phase interferometer system, it is found that the system is sensitive to the polarization characteristic of the antenna, which seriously affects the angle measurement accuracy, especally in the low frequency band. |
13105 |
文章对ー种超宽带Vivaldi天线的极化特性进行了建模,从理论上分析了天线极化特性对来波信号极化测量的影响,其导致相位干涉仪测角系统精度降低。 |
The polarization characteristic of an ultra-wideband antenna were modeed, and the influence of polarization characteristic of the antenna on the polarization characteristic of incoming wave is anayzed, which finally leads to the decrease of the angle measurement system of the phase interferometer. |
13106 |
最后,试验测试证明了天线交叉极化特性对相位干涉仪测角精度的负面影响,并提出ー种通过修正接收天线极化特性提高测角精度的途径,试验结果表明其可以显著提高测角精度。 |
The infuence of poarization characteristic of the utra- wideband antenna on the ange measurement accuracy of the phase interferometer is verified by practica2 test, and a way to improve the angle measurement accuracy is proposed and the result shows that the way could improve the angle measurement accuracy obviously. |
13107 |
目标极化特性是全极化雷达导引头信号算法的重要先验知识,开展地海杂波极化特性的理论与实验研究对极化导引头的研制意义重大。 |
The target polarization characteristic is an important prior knowledge of sgnal algorithm of polarization radar seeker. It is of great significance to study the polarization characteristic of ground-sea clutter theoretcally and experimentally for the development of polarization seeker. |
13108 |
地海杂波的时频域和极化域统计特性是设计雷达导引头抗干扰算法的基础。 |
Statistical characteristics of ground-sea clutter in time-frequency domain and polarization domain are the basis of designing anti- jamming algorithm for radar seeker. |
13109 |
基于本实验室研制的Ku波段双极化平板裂缝天线,在山东莱州地区某实验现场,开展了垂直和水平极化基下地海杂波频域和极化域实验研究,获取了大量的全极化回波实验数据。 |
Based on the Ku-band dual—polarized planar slot antenna deve l oped by our laboratory, the frequency domain and polarizaion domain experiments of ground-sea clutter under vertical and horizontal polarization were carried out at a test site in Lai zhou, Shandong Provinee, and a large number of exper mental data of fully polarzed echoes were obtained. |
13110 |
文中重点从极化度,极化不变量和极化分解探索给定条件下的地海杂波极化特性,并进行了实验数据的处理和分析。 |
The polarizaton of ground-sea clutter under given conditions was explored in terms of polarization degree, polarization invariant and polarization decomposition. The experimental data are processed and analyzed. |
13111 |
在Ku波段,三种典型环境下的杂波具有较高的极化度,极化特征明显,且杂波的极化特性随频率变换明显,表现出极 化对频率的敏感特性。 |
In Ku band, the clutters in three typcal environments basically have high polarizati on and obvious polarization cbaracteristics. |
13112 |
三种杂波的极化不变量存在显著差别,且随着频率显著变化。 |
The polarization characteristics of the clutter are obviously changed with frequency transformation, which show the sensitivity of polarization to frequency. |
13113 |
数据的极化分解结果验证了三种杂波均存在主散射机制。 |
The polarization invariants of the three clutters are significantly different! and change significantly with frequency. The polarization decomposition results of the data verify the existence of the main scattering mechan i sm of the three clutters. |