- 草原利用制度
- 测距系统
- 方位线系统
- range: vt. 1.排列；整理(头发等)。 2.使归类[班、行、 ...
- system: n. 1.体系，系统；分类法；组织；设备，装置。 2.方 ...
- range and range-rate system: 距离和距离变化率测定系统
- acquisition range of homing system: 自导作用距离
- automatic range-tracking system: 距离自动跟踪系统
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range system中文什么意思
- 草原利用制度
- 测距系统
- 方位线系统
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例句与用法
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- Some units undertake to do what is apparently beyond the ability by force adopting pulse check meter system as basis of closing , which causes numerous disputes , so insiders generally think the reading type water gauge system is an important trend of long - range system development directly
然而目前的脉冲抄表系统由于自身无法克服的缺点，有些单位勉为其难强制采用脉冲抄表系统作为结算依据，招致众多纠纷，因此业内人士普遍认为直读式水表系统是远程系统发展的重要趋势。 - In the first part of this paper , the theory of laser range and dds technology was introduced , the factors of influencing range precision were also analysed . at the same time , put forward in the paper , with using the fpga embedded technology , the wideband and high resolution sin modulating signals can be generated easily , then analysed the noise of the dds ; in the second part , the theory of phase measurement based on fft was analysed . in the phase range system , by using the fft operation , the resolution and sensibility of phase measurement can be enhanced ; then some circuits were designed and come true , also simulated and validated ; in last part , the improvement of the phase range system was brought forward , summarized and expected
论文首先阐述了激光测距和调制信号源的基本原理,分析了影响测距精度的因素,指出应用dds技术可以实现宽带、高精度的调制信号输出,说明了引起dds输出信号杂散的原因和解决的办法;同时分析了应用fft运算实现信号相位提取的基本原理及设计方法,采用这种检相技术,可以极大地提高测相精度与灵敏度;然后提出了基于fpga嵌入式系统的相位式激光测距机的整体设计,并就各部分进行了详细的分析与设计;接着介绍了激光测距系统的外围电路和基于quartusii集成软件平台的部分硬件电路的设计,并对其中的设计进行了仿真和验证;最后总结提出了对系统今后的进一步改进和完善的思路。 - The paper introduced a phase range system based on fpga embedded technology . three functional module in the range system : modulability signal generation source , information control unit and information management unit , can be designed in one pld chip , so a majority of shortcomings of traditional phase laser range were conquered by this excellent innovation in circuits
本文介绍了一种基于fpga嵌入式技术的相位激光测距系统,该系统采用先进的fpga技术,实现了调制信号产生、信息控制与处理各模块的整合,解决了传统相位激光测距所难以克服的弱点。 - It consists of three main parts : in the first part , we analyse the effect of multipath on code - tracking loops of receivers in spread - spectrum ranging systems . first , we establish the model of received signals with the present of multipath through the presentation of multipath ’ s characters . then , we analyse the theory of delay lock loop ( dll ) , based on which we derive the tracking error of dll caused by multipath
首先通过对多径信号特性的分析得到存在多径时的接收信号模型,然后在对扩频测距系统的延迟锁定环路( delaylockloop )工作原理的分析的基础上,阐明了多径存在时码跟踪环路产生误差的机理。