1) equivalent sampling
等效采样
1.
Moving target detection and imaging for Spaceborne SAR in wide-swath based on repeated usage of space-time equivalent samplings
基于空时等效采样复用的星载SAR宽域运动目标检测与成像
2.
Terminal displays by X and Y axes, in the low frequency area we use real time sampling, while in the high sampling area, we choose 200 MHz equivalent sampling, the clock ofequivalent sampling comes from PLL.
系统以FPGA(现场可编程门阵列)为控制核心,FPGA内嵌RAM存储波形数据,终端采用X、Y轴方式显示,低频段实现了106次采样/s实时采样,高频段实现了200MHz等效采样,等效采样时钟由FPGA内置锁相环时钟分频得到,分频算法经优化具有极高的精度,被测波形频谱覆盖了20Hz~10MHz,波形显示无明显失真。
3.
The equivalent sampling arithmetic has been exerted,and the high speed echo signal equivalent collection has been realized and rebuilt.
针对时间域反射测试技术在地质灾害防治、山体滑坡预警,以及土壤水含量分析等诸多领域的应用,使用TDR技术构建的同轴电缆形变监测算法,设计了TDR检测系统硬件电路;运用等效采样算法,实现了高速回波信号的等效采样与重构;通过向同轴电缆施加窄脉冲激励信号,依据回波信号模式分析完成了同轴电缆形变的有效监测;实验室中的大量实验数据表明,将TDR技术应用于同轴电缆形变监测原理正确,文中设计的方案可行。
2) equivalent time sampling
等效采样
1.
The equivalent time sampling method based on parametric model estimation is used to realize 10GSps equivalent time sampling.
针对野外作业和生产现场测试需要,提出了一种手持宽带存储数字示波器的设计与实现方案,采用可程控宽带信号调理技术实现了200MHz的信号模拟通道设计和高速触发模块设计;采用多通道并列技术实现了200MSps的实时采样,采用基于参量模型的等效采样技术实现了10GSPs的等效采样;采用多任务软件技术实现对系统的管理和人机交互。
2.
A new equivalent time sampling system based on DSP is invented to solve the problem of normal equivalent time sampling system,which needs accurate trigger circuit, precision timing circuit or time measuring circu it.
针对现有的常规的等效时间采样系统必须具备准确的模拟触发电路,必须具备精确的定时电路或时长检测电路,并且波形重建时间长甚至不能完全重建的问题,提出一种基于DSP的新型周期信号等效采样系统设计。
3) equivalent sample
等效采样
1.
An equivalent sample circuit based on DSP;
基于DSP的等效采样电路设计
2.
The design and the realization of an equivalent sample oscilloscope mo-dule based on VXI are introduced.
介绍了一个基于 VXI的等效采样示波器模块的设计原理与实现方法 ,重点阐述了基于 DSP的等效采样算法和实现方法。
3.
Depending on the pulse time domain reflection characteristic and the technology of equivalent sample,we get a resolution of 3 mm.
本文引入等效采样技术,实现了时间信号的放大测量,从而获得了3mm 的距离分辨率。
4) Equivalent Time Sampling
等效时间采样
1.
Application of Equivalent Time Sampling in Radar Level Transmitter;
等效时间采样在雷达液位仪中的应用
2.
A high-speed sampling system for echo signal of impulse GPR based on equivalent time sampling method is presented,and significant circuits including step sampling pulse generator and sampling gate circuit are designed.
提出了一种基于等效时间采样方法的冲击型探地雷达回波信号高速采样系统,设计实现了等效时间采样的关键电路,包括步进采样脉冲发生器、采样门电路。
5) equivalent-time sampling
等效时间采样
1.
The Application of Equivalent-Time Sampling in OTDR;
等效时间采样法在OTDR中的应用
2.
The all optical pulses replicating technique for equivalent-time sampling based on active fiber loop replicator was presented.
为了研究向全光等效时间采样系统提供被采样一致脉冲序列的技术,讨论了使用有源光纤环脉冲复制器进行脉冲复制的方法。
3.
Applying the principle of equivalent-time sampling, this paper designs a fast narrow pulse acquisition circuit for throughwall radar, based on FPGA.
本文应用等效时间采样工作原理,设计了一种基于FPGA实现的穿墙雷达高速窄脉冲采集电路,电路结构简单可靠。
6) Equivalent sampling period
等效采样周期
补充资料：比等效百万吨数