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- downlink echo data 下传回波数据
- Comparatively, in other modes such as squint SAR and spotlight SAR and the real flight echo data are hardly acquired. 相对而言，其他照射模式，如前斜视、聚束模式等的实飞数据却很难得到。
- The parallel arithmetic of distribute space borne SAR ground target echo data simulating procedure was examined. 摘要对分布式星载SAR系统地面回波仿真程序并行化算法进行了研究。
- This paper presents a sampling and collecting high speed cloud echo data method using a monolithic processor for laser ceilometer. 本文介绍了激光测云仪中用单片机实现云体回波信号高速数据采集的方法。
- In aspect of echo data hiding capacity, 8, 30 and 100 Bits messages are embedded respectively. 100 Bits messages are bided and analyzed completely. 在隐藏容量方面，依次隐藏8、30和100个比特信息，并且对隐藏100比特的信息进行分析。
- By using synoptic charts, hourly GMS5 infrared TBB pictures and Doppler radar echo data, the rainstorm process on August 16, 2003 has been analysed. 摘要应用天气图、卫星云图TBB资料和多普勒雷达回波资料，分析了云南2003年8月16日的暴雨天气过程。
- The first object is achieved by the use of GPIB interface functions.With these functions, echo data are acquired and stored on PC automatically. 该方法通过调用GPIB接口函数设置光子计数器，并实时存储回波数据到控制电脑中；
- The echo characteristics and the precipitation rule are analysed by using the echo data, as well as the Z-I relation is calculated. 采用雷达回波资料计算、分析了夏季对流云的回波特征、降水规律，并计算了Z-I关系。
- The R-D method utilizes the spacecraft ephemeris data and Range-Doppler frequency information of the SAR echo data to produce an estimatign of the target position. 摘要距离-多普勒(R-D)定位法是利用卫星星历数据和雷达回波数据的距离-多普勒信息对SAR图像目标进行定位，因无须在视场中选参考点，这对月面目标定位具有重要意义。
- A method of estimating Doppler Centroid of spaceborne SAR with the spectrum nalysis of noise model is proposed in this paper,and its performance is compared with traditional ones using the Seasat A real echo data. 本文提出了采用噪声模型的谱分析来估计合成孔径雷达的多普勒质心的方法，并用Seasat－A回波数据对该方法与传统方法的估计性能进行了比较。
- A new multi-channel high-speed real-time implementation scheme for radar echo data mass storage is proposed via the analysis of high-speed real-time monopulse radar echo data storage style and requirement. 针对单脉冲体制雷达,通过分析实时记录雷达回波数据的方式和要求,提出一种多通道高速海量实时存储雷达回波数据的实现方案。
- Movement compensation is the key technique in synthetic aperture sonar(SAS) imaging,and it is normally realized in SAS system by the cross correlation of the raw echo data of multiple-receiver. 运动补偿是合成孔径声纳(SAS)成像的关键问题,SAS系统一般利用多接收元回波信号的互相关特性进行运动补偿。
- Methods: The clinical and ECHO data of 22 elderly patients with RMCT identified by transesophageal echocardiography were studied and compared with those of 12 younger adult patients with RMCT. 方法：对22例老年二尖瓣腱索断裂患者的临床及超声资料进行总结分析，并与12例非老年二尖瓣腱索断裂患者进行对比。
- Her performance was cheered to the echo. 她的表演获得长时间的喝采。
- The bird-song is the echo of the morning light back from the earth. 鸟的歌声是曙光从大地反响过去的回声。
- His words aroused no echo in their hearts. 他的话未能在他们心中引起共鸣。
- A buffer in a drum used to temporarily store data. 磁鼓中用来暂时存放数据的一种缓冲区。
- These caused great difficulties to downlink and store SAR raw data. 这给数据的传输和存储带来了很大的困难。
- High Resolution Airborne SAR Motion Compensation Based on Echo Data 基于回波数据的高分辨力机载SAR运动补偿
- Here is some catalogue and technical data. 这儿有一些产品目录和技术资料。
