1) simulated echo
模拟回波
1.
According to Doppler theory, simulated echo signal comprise the corresponding Doppler Spectrum, then ocean current velocity can be simulated.
并根据模拟回波信号中包含有相应的多谱勒谱的信息 ,模拟了海流的流速 。
2) echo simulation
回波模拟
1.
In order to evaluate the results of this system in practical application, a mathematical method based on Monte Carlo analysis was put forward, which includes two parts, as echo simulation and detection probability calculation.
给出了雷达检测概率测试系统,并提出了一种基于MonteCarlo法的数学算法以评估该系统在实际应用时所得的测试结果,它主要包括回波模拟和检测概率计算两个部分。
2.
According to the requirement of high frequency ground wave radar s test and the extraction reference of target information in HF ground wave radar, a responder is designed to complete the tasks of radar scaling, multichannel receiver calibration, echo simulation, and target management combining with the secondary radar s work principle.
针对高频地波雷达测试的要求以及目标信息的提取依据,设计应答器来完成雷达定标、多同道接收机校准和回波模拟的任务,同时结合二次雷达的工作原理来实现目标管理的目的。
3.
In order to evaluate the results of this system in practical application, a mathematical method based on Monte Carlo analysis was put forward, which includes two parts, as echo simulation and detection probability calculation.
给出了雷达检测概率测试系统,并提出了一种基于MonteCarlo法的数学算法以评估该系统在实际应用时所得的测试结果,它主要包括回波模拟和检测概率计算两个部分。
3) RSS
回波模拟器
1.
An ocean Return Signal Simulator (RSS) and the principles of the RSS with its means of testing and calibrating for a satellite altimeter were given.
给出了回波模拟器的原理及其对卫星高度计的测试和定标方法。
2.
Sea surface return signal simulator(RSS) receives and processes the chirp signal transmitted by radar altimeter.
海面回波模拟器能够接收和处理高度计信号,产生海面回波波谱来调制高度计信号,最后精确延时后发射回高度计,是在地面对高度计进行测试和定标的一种有效手段。
3.
The principles and performance of an experimental Return Signal Simulator(RSS) with its means of testing and calibration for radar altimeter were given.
给出了自行研制的回波模拟器实验样机的原理、性能及其对雷达高度计的测试和定标方法,应用该样机对神舟4号飞船的雷达高度计进行了全系统的地面测试和定标实验。
4) radar echo simulator
雷达回波模拟器
1.
A design of aiming radar echo simulator;
炮瞄雷达回波模拟器的设计
2.
Finally, an application scenario to radar echo simulator based on DRFM is established.
介绍了数字射频存储器 (DRFM )的基本原理 ,重点分析了幅度量化引起的寄生信号电平 ,并给出其输出信号的表达式 ,提出了DRFM设计中需要重点考虑的几个因素 ,最后给出了DRFM在雷达回波信号模拟中的应用 ,提出了一种基于DRFM技术的雷达回波模拟器方案设
3.
This paper introduces the work principles,hardware circuit structure and application of a pintsized multifunctional radar echo simulator,which can generate various waveforms needed.
雷达回波模拟器在雷达系统的性能测试中具有广泛的应用。
5) SAR data simulation
SAR回波数据模拟
6) Radar echo simulation
雷达回波模拟
补充资料：单次激发回波平面成像
单次激发回波平面成像
磁共振成像术语。磁共振快速成像的方法之一。仅使用一次射频(RF)脉冲激励来获得图像的回波平面成像(EPI)方式。在EPI数据采集过程中令读出梯度快速往返振荡，产生一个相位编码彼此独立的梯度回波链，最终形成一幅图像。单次激发EPI采集时间短，一般仅为50～100ms，但存在着信号强度低、空间分辨率低、视野受限、磁敏感性伪影明显等缺点，这些缺点随技术的进步正在不断地克服。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条