助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   phase dither 的翻译结果: 查询用时:0.007秒
图标索引 在分类学科中查询
所有学科
电信技术
无线电电子学
计算机软件及计算机应用
更多类别查询

图标索引 历史查询
 

phase dither
相关语句
  相位抖动
     For the main sources of spurious and noise in DDS,phase dither and delay overlaping are analyzed based on the principle of DDS,the model of DDS in simulink of MATLAB is built. Simulation result shows that only adopting phase dither injection,the obvious effect on spurious reduction in DDS output frequency spectrum may be gained.
     依据直接数字式频率合成器(DDS)的基本工作原理,针对DDS中杂散与噪声的主要来源,综合分析了相位抖动法和延时叠加法的有效性,并运用MATLAB中的simulink建立了DDS仿真模型,通过对仿真结果的研究表明,只有选用合适的相位抖动注入,才能对DDS输出频谱中的杂散分量产生明显的抑制效果。
短句来源
  “phase dither”译为未确定词的双语例句
     This paper presents a phase dither technique,which destroys the period of phase truncation error sequence by adding proper di ther to the phase accumlator,and converts the discrete line spurs which were produced by the phase truncation error sequence into random noise,then decreases the spurs level relative to the desired signal level and obtains the improvement of the DDS output spectrum at last.
     本文介绍的相位扰动法 ,通过加入适当的扰动信号来打乱误差序列的周期性 ,把由误差序列周期性引起的有规律的杂散分量变为幅度较低的随机相位噪声 ,从而使输出的杂散信号与有用信号的电平之比降低 ,最终达到改善DDS输出频谱特性的目的。
短句来源
  相似匹配句对
     Differential phase
     微分相位的测量
短句来源
     water phase.
     以水为反应介质.
短句来源
     A dither control method using phase lock technology is presented and a controller is developed.
     本文提出了用锁相环跟踪抖动机构自然频率漂移的方法 ,设计了一种新型抖动控制器。
短句来源
     A Dither Control Method Which Tracks the Drift of Dither Mechanism's Nature Frequency With a Phase Lock Loop
     用锁相环跟踪抖动机构自然频率的抖动控制方法
短句来源
查询“phase dither”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  phase dither
With phase dither enabled, the spurious performance is -101dBc or better and SNR is 84dBFS.
      
In addition, the phase dither of the two are uncorrelated.
      


This paper presents a phase dither technique,which destroys the period of phase truncation error sequence by adding proper di ther to the phase accumlator,and converts the discrete line spurs which were produced by the phase truncation error sequence into random noise,then decreases the spurs level relative to the desired signal level and obtains the improvement of the DDS output spectrum at last.The technique is analysed,the results of this analysis is presented and confirmed by simulation....

This paper presents a phase dither technique,which destroys the period of phase truncation error sequence by adding proper di ther to the phase accumlator,and converts the discrete line spurs which were produced by the phase truncation error sequence into random noise,then decreases the spurs level relative to the desired signal level and obtains the improvement of the DDS output spectrum at last.The technique is analysed,the results of this analysis is presented and confirmed by simulation.

本文介绍的相位扰动法 ,通过加入适当的扰动信号来打乱误差序列的周期性 ,把由误差序列周期性引起的有规律的杂散分量变为幅度较低的随机相位噪声 ,从而使输出的杂散信号与有用信号的电平之比降低 ,最终达到改善DDS输出频谱特性的目的。本文对该方法做了严密的分析并用仿真手段验证了理论分析结果。

NCO is an important part in software radio transceiver of CDMA base station. This paper introduces phase dither technique to improve specification of SFDR, and analyzes two error influencing SFDR. It also shows the simulation result and the practice example.

数控振荡器 (NCO)在 CDMA基站的软件无线电收发机中 ,起着非常重要的作用。讨论了两种误差对 NCO杂散的影响 ,介绍采用相位抖动技术以提高无杂散动态范围 ,给出了仿真结果和实例。

In this paper, a 3-D imaging technique for interferometric inverse synthetic aperture radar is presented. And the criteria of determing and the angle glint in interferometric angle measurement are given. Furthermore, the 3-D imaging technique under two tracking systems is analyzed. This technique can effectively overcome the random phase dithering caused by tracking error under the continuous tracking system and satisfactorily solve the alignment of the different focuses of ISAR images under the step tracking...

In this paper, a 3-D imaging technique for interferometric inverse synthetic aperture radar is presented. And the criteria of determing and the angle glint in interferometric angle measurement are given. Furthermore, the 3-D imaging technique under two tracking systems is analyzed. This technique can effectively overcome the random phase dithering caused by tracking error under the continuous tracking system and satisfactorily solve the alignment of the different focuses of ISAR images under the step tracking system.

该文提出了干涉式逆合成孔径雷达三维成像的方法,并对于涉式测角出现的角闪烁现象提出了判断并剔除角闪烁点的准则。然后分析了两种跟踪体制下的三维成像方法,并提出了克服连续跟踪体制下跟踪误差引起的相位随机抖动问题的方法,解决了步进跟踪体制下各天线ISAR像焦点对齐问题。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关phase dither的内容
在知识搜索中查有关phase dither的内容
在数字搜索中查有关phase dither的内容
在概念知识元中查有关phase dither的内容
在学术趋势中查有关phase dither的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社