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passive synthetic
相关语句
  被动综合
     Transfer Characteristics and Hierarchical Optimum Design of Power Flow of Passive Synthetic Control System
     被动综合控制系统的功率流传递特性及分级优化设计
短句来源
  无源综合
     Ship-Based Passive Synthetic Impulse and Aperture Radar and Some Key Questions
     舰载无源综合脉冲/孔径雷达及其若干关键问题
短句来源
     A new type of radar system of ship based passive Synthetic Impulse and Aperture Radar(SIAR)is presented on the basis of multiple frequency carrying signals transmitted with multiple antennas to the whole directions,while its transmitting beams are formed by digital signal processing in receivers.
     本文根据综合脉冲 /孔径雷达采用多个天线同时向全空域辐射多个载频信号 ,而在接收端通过信号处理获得发射方向图的特点 ,提出一种新的雷达体制———舰载无源综合脉冲 /孔径雷达 .
短句来源
  “passive synthetic”译为未确定词的双语例句
     also application to passive ranging is discussed preliminarily. For simulation research, comparing with conventional beamforming, result processed by FFTSA(FFT Synthetic Aperture ) algorithm which is one of passive synthetic aperture techniques distinctly improve dynamic spatial gain and azimuth resolution, enhancing detecting performance of weak signal.
     在仿真研究中,通过与常规波束形成相比较,使用FFTSA(FFT synthetic aperture)算法的被动合成孔径处理明显提高了动态空间增益和空间分辨力,提高了对微弱信号的检测性能; 被动合成孔径技术应用于球面波聚焦被动测距增加了实孔径阵长度并提高了信噪比,仿真结果表明被动合成孔径技术的使用提高了被动测距的精度。
短句来源
     Research on Passive Synthetic Aperture in the Signal Detection of the Line Array
     线阵信号检测的被动合成孔径技术研究
短句来源
     The Passive Synthetic Aperture Technique of Acoustic Vector Sensor Line Array
     矢量水听器线列阵的被动合成孔径技术
短句来源
     Passive synthetic control of isolation and absorption vibration of machine system mounted on flexible foundation is studied in this paper.
     着重研究柔性基础上机械系统的被动隔振和吸振综合控制。
短句来源
     Long Distance Source Localization with Passive Synthetic Aperture Sonar
     被动合成孔径声呐阵列目标远程定位
短句来源
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  相似匹配句对
     From Passive to Active
     应对RoHS,变被动为主动
短句来源
     Research on Passive Synthetic Aperture in the Signal Detection of the Line Array
     线阵信号检测的被动合成孔径技术研究
短句来源
     (e), passive-inconsistent.
     (5)、消极不一致型(passive-inconsistent)。
短句来源
     Synthetic product T.
     作者将合成的T.
短句来源
     Synthetic of SAP
     高吸水树脂SAP的合成
短句来源
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  passive synthetic
This project aims at developing a baseline design of a low-cost constellation of passive synthetic aperture radar spacecraft in geosynchronous orbit.
      


A new type of radar system of ship based passive Synthetic Impulse and Aperture Radar(SIAR)is presented on the basis of multiple frequency carrying signals transmitted with multiple antennas to the whole directions,while its transmitting beams are formed by digital signal processing in receivers.The system shall not only make up a radar system of bi station or multi station through transmitting signals from the bank,and receiving signals on ships,but also be equivalent to a passive position locater...

A new type of radar system of ship based passive Synthetic Impulse and Aperture Radar(SIAR)is presented on the basis of multiple frequency carrying signals transmitted with multiple antennas to the whole directions,while its transmitting beams are formed by digital signal processing in receivers.The system shall not only make up a radar system of bi station or multi station through transmitting signals from the bank,and receiving signals on ships,but also be equivalent to a passive position locater at the sink.The basic constitutions and operational principles are presented.There are many distinguished features in the new radar system in comparison with conventional radars.Its performance is analyzed and simulative results are given.Finally,some key problems to be solved are discussed in the radar.

本文根据综合脉冲 /孔径雷达采用多个天线同时向全空域辐射多个载频信号 ,而在接收端通过信号处理获得发射方向图的特点 ,提出一种新的雷达体制———舰载无源综合脉冲 /孔径雷达 .该雷达既利用在岸上发射、在舰船上接收而构成岸 舰双 /多基地“广播式”雷达 ,又由于在接收站不发射信号而相当于无源定位 .本文介绍该雷达的基本组成、工作原理及其特点 ;分析其性能 ;讨论该雷达需解决的关键问题 .

This paper proposes a method to solve the direction-of-arrival estimation of towed line array sonar.By using acoustic vector sensors it composes a line array and passive synthetic aperture technique to improve direction-of-arrival estimation performance. This method overcomes the inherent port/starboard ambiguity which results from line array composed of traditional sound pressure hydrophones with the directivity from acoustic vector sensor. At the same time, this method adopts passive synthetic...

This paper proposes a method to solve the direction-of-arrival estimation of towed line array sonar.By using acoustic vector sensors it composes a line array and passive synthetic aperture technique to improve direction-of-arrival estimation performance. This method overcomes the inherent port/starboard ambiguity which results from line array composed of traditional sound pressure hydrophones with the directivity from acoustic vector sensor. At the same time, this method adopts passive synthetic aperture technique to expend the effective aperture using the line-spectrum composition of the ship noise's low frequency, consequently attains the azimuth resolution of large physical aperture towed line array using small physical aperture towed line array. The simulation shows that this method is feasible and valid.

针对拖曳线列阵声纳的方位估计问题 ,提出了由矢量水听器构成线列阵 ,运用被动合成孔径技术来提高方位估计性能的方法 .该方法利用矢量水听器本身所具有的 cosθ形式的指向性 ,从而克服了由传统声压水听器构成的线列阵所固有的左右舷模糊问题 ;利用舰船噪声低频段的线谱成分 ,采用被动合成孔径技术实现有效孔径的扩展 ,从而以小物理孔径的拖线阵达到大物理孔径拖线阵才具有的方位分辨力 .通过仿真实验 ,验证了该方法的可行性和有效性 .

Passive synthetic control of isolation and absorption vibration of machine system mounted on flexible foundation is studied in this paper.For the system excited by complex forces,discussed is the transfer characteristic of the power flow input.Furthermore,raised is the optimal design strategy by different levels of main vibration system and dynamic vibration absorbers.That is,the first is to optimize the structural parameters of main isolation system to converge all of natural frequencies to ward low frequency...

Passive synthetic control of isolation and absorption vibration of machine system mounted on flexible foundation is studied in this paper.For the system excited by complex forces,discussed is the transfer characteristic of the power flow input.Furthermore,raised is the optimal design strategy by different levels of main vibration system and dynamic vibration absorbers.That is,the first is to optimize the structural parameters of main isolation system to converge all of natural frequencies to ward low frequency band,and the second is to optimize the structural parameters of dynamic vibration absorbers to minimize the power flows of the system in the control frequency band mantled by excitation frequency.

着重研究柔性基础上机械系统的被动隔振和吸振综合控制。探讨复杂激励力作用下 ,被动综合系统的功率流传递特性 ;以注入主振系或基础结构的净功率流为最终控制目标 ,提出了主隔振系统和吸振结构分级优化设计策略 ,即 :首先 ,优化设计主隔振系统的结构参数 ,使主振系的固有频率向低频区集聚 ;然后 ,优化设计吸振结构参数 ,使系统功率流在激励频率覆盖区内的峰值最小。

 
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