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carrier wave phase
相关语句
  载波相位
     The Resolution of the Integer Ambiguity in GPS Carrier Wave Phase Measurement
     GPS载波相位整周模糊度的解算
短句来源
     To track the Doppler shift, the second order digital phase lock loop is combined with the spatial diversity equalizer. The simulation and test results show that the method can compensate the fast change of the carrier wave phase caused by the time-vary of UWAC.
     ·为了更有效地跟踪水声信道的多普勒频移,提出了将二阶数字锁相环与空间分集均衡相结合的算法,仿真结果表明,采用二阶数字锁相环的空间分集均衡算法可有效补偿由于水声信道时变而引入的载波相位快速变化。
短句来源
     The paper expressed basic method of GPS positioning and type of observation quantity, focal point explained code measurement false distance observation equation,carrier wave phase observation equation and static relative positioning observation equation.
     介绍了利用GPS进行定位的基本方法和观测量的类型,并着重阐述与测码伪距和载波相位观测量相应的观测方程及静态相对定位的观测方程。 详述了GPS控制网的优越性,GPS控制网技术设计的一般原则、GPS网的图形设计内容和GPS卫星网的平差原理。
短句来源
     The Resolution and Simulation of the Integer Ambiguity of Carrier Wave Phase Measurment
     载波相位测量中整周模糊度的解算与仿真
短句来源
     Non coherent demodulation for 2PSK detects relation of carrier wave phase of the interval symbol by the (half period of carrier wave) delay and the adder, then the data is demodulated.
     2 PSK非相干解调法将经延时半个载波周期的接收信号与原接收信号相加 ,检测出两相邻码元载波相位变化情况 ,从而解调出数字信息 .
短句来源
  “carrier wave phase”译为未确定词的双语例句
     In the first place, The thesis analyzed the mechanism of cell series carrier wave phase shift style PWM modulation technology in theory, then analysed and designed in simulation used of Simulink based on MATLAB6.5. Afterwards, made one kind of high performance V/f s control schemes to the middle voltage inverter system.
     首先在理论上分析了单元串联载波移相式PWM调制的机理,使用基于MATLAB6.5的Simulink软件进行建模与仿真研究。 并在仿真结果的基础之上将一种高性能的V/f控制方案引入了中压变频系统。
短句来源
  相似匹配句对
     The Study on Carrier Wave Phase-shifiting Isodyne Techinique
     双折射载波相移等达因法的应用研究
短句来源
     The Resolution and Simulation of the Integer Ambiguity of Carrier Wave Phase Measurment
     载波相位测量中整周模糊度的解算与仿真
短句来源
     The Resolution of the Integer Ambiguity in GPS Carrier Wave Phase Measurement
     GPS载波相位整周模糊度的解算
短句来源
     The Carrier
     浅谈催化反应中活性组分的载体
短句来源
     The test result indicates that the phase modulator without transformer can suppress the carrier wave.
     实测结果表明,这种无变压器环形相位调制器能较好地抑制载波。
短句来源
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In this paper,the principle of determining attitude of high dynamic carrier with GPS carrier-wave phase measurement,and its pivotal correlation technology has been deeply studied .In order to achieve the aim of synchronism ,a method of realizing the speedy determining attitude with space geometry restrain has been presented.Moreover,we carry out a large number of simulation calculation and precision analyse.

本文针对高动态飞行器的姿态测量中,采用 G P S载波相位测量来确定姿态的原理,以及相关关键技术问题作了深入研究,提出了利用空间几何约束原理来实现高动态飞行器等载体的姿态快速测量,从而达到实时定姿的目的。同时本文针对动态仿真数据进行了大量的仿真计算及精度分析。

With the development of the GPS positioning technology,GPS is widely applied in the field of hydrographic surveying.The high accuracy of GPS in determining 3D coordination ensures high accuray of parameters of vessel attitude in measuring vessel attitude.In this paper,the effects of vessel attitude for depth are discussed systematically.It is found that the effect of dynamic squat for depth is direct and more large than the effects of pitch and roll of vessel for depth.The limitation of traditional model of...

With the development of the GPS positioning technology,GPS is widely applied in the field of hydrographic surveying.The high accuracy of GPS in determining 3D coordination ensures high accuray of parameters of vessel attitude in measuring vessel attitude.In this paper,the effects of vessel attitude for depth are discussed systematically.It is found that the effect of dynamic squat for depth is direct and more large than the effects of pitch and roll of vessel for depth.The limitation of traditional model of computing dynamic squat is analyzed.A new model is given in this paper. In order to saitsfy the accuracy and simple procedure of survey in determining vessel attitude,the technologies of GPS,carrier phase measurement and OTF are applied in the research.Using these technologies,the accuracy about ±5cm in plane direction and ±3cm in height direction is validated in test.It shows that the method of determining vessel attitude is feasible. Because of the direct effect of tide for depth,it must be considered in calculating vessel attitude.In the procedure of getting tide value,tidal observation and the interpolation of tide are used.At the same time,the interpolation model of tide is given in this paper. By the above processing,the following conclusions are got:①the method that GPS carrier wave phase differential survey technology is used for determining vessel attitude is avaicable.②dynamic squat is mainly affected by velocity,meanwhile,the mean depth in surveying area,the static squat,shape of vessel,wind and wave also have some contribution to dynamic squat.③pith and roll are got by the respective height difference between GPS antennas at bow and center of vessel. The above methods were used in Yangze River.A satisfactory result is given in this paper.

系统地阐述了船体的纵滚、横滚和动态吃水对测深的影响 ,提出了利用GPS载波相位测量技术测定船姿的实施方法和计算流程 ,并给出了相应的计算模型。分析了GPS测定船姿的精度 ,提出了一些对实际生产有益的结论和建议

In this paper.the birefraction carrier wave phase-shifting technique is proposed using the initial birefraction pattern as carrier. The image's distinguishing only depends on one picture. As an example, an experiment has been given.

将载波技术应用到数字相移法中,利用双折射特性,将有用信息加到一线性载波中,再通过解调算法处理,实现从一幅相移图中分离相位,并给出实验例证。

 
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