多普勒效应

GPS信号的多普勒效应分析

Analysis of doppler effect for GPS signal

步进频率SAR快时间多普勒效应补偿新方法

A New Fast-time Doppler Effect Compensation Method Applied to Step Frequency SAR System

利用MATLAB模拟多普勒效应

Simulating the Doppler Effect with MATLAB

基于正交频分复用（OFDM）的航空移动通信多普勒效应研究

The Doppler Effect of Aviation Communication in OFDM System

分析了在高速移动环境下存在的多普勒效应，指出了它对OFDM系统的影响。

This paper introduces the Doppler effect on OFDM system in mobile environment .

基于激光多普勒效应的MEMS的运动检测

Dynamic testing of MEMS based on laser doppler effect

您可以下载一款名为“PulsatingScience”的3维可视软件来探索脉冲双星系统中的多普勒效应。

Explore the Doppler effect in a binary pulsar system by downloading the " Pulsating Science " 3D visualisation software .

当它再一次到这里-，当速度和你们之间的，撇又等于f，then，f，prime，equals，f，again。，这个现象被称为，多普勒效应。

And when it is here again & when the angle between f And so this phenomenon is called the Doppler effect .

本文分析了信道多普勒效应引起OFDMICI的机制。

In this paper , the mechanism of OFDM ICI caused by Doppler effects is discussed .

给出了GPS信号多普勒效应以及利用多普勒观测量计算电离层总电子含量的计算公式。

The formulae for calculating Doppler shift for GPS signal and ionospheric total electron content ( TEC ) by using dual frequency GPS Doppler observations are provided .

本文从对抗多普勒效应对OFDM系统性能的影响入手，研究OFDM在高速移动环境下的关键技术。

This dissertation focuses on the Doppler effects which influence OFDM significantly and studies key technologies of OFDM in high-speed mobile communications .

TDMA卫星通信系统中多普勒效应的分析及解决

Analyses and a Solution of the Doppler Effect in TDMA Satellite Communication System

根据多普勒效应，中性束中的氢粒子发出的Hα波长偏离本底的Hα波长，波长偏移量与氢粒子的能量相关，从而在光谱仪上得到多峰Hα谱线。

According to the Doppler effect , the multi-peak H_ α spectra is obtained , which are emitted by the neutral beam and separated from the unshifted H_ α .

多普勒效应对应用IMP算法估计目标方位的影响

Doppler effect on azimuth estimate of a moving target with IMP algorithm

对于TDD预均衡OFDM系统，多普勒效应导致了信道的时变，并使预均衡处理产生误差，且随处理时延的增大，预均衡系数误差越大，由此影响了预均衡系统的性能。

In TDD pre-equalization OFDM systems , the Doppler frequency shift would make channel time-variant , degrade system performance .

利用VB编程技巧，形象展示多普勒效应的物理机理，便于学生理解和掌握。

The paper uses VB programming technique to show the physical principle of Doppler Effect , so that the students can understand it well .

论述了多普勒效应对GPS伪距测量的影响，建立了GPS伪距测量多普勒改正的模型。

In this paper , the influence of Doppler effect on GPS pseudo range measurement is described and the model of doppler correction for GPS pseudo range measurement is established .

同步跟踪则由多径跟踪的结果精确估计PN序列码相位，并实时跟踪信道各径成分由于多普勒效应产生的时延漂移。

Following , code tracking confirm the PN code phase precisely and track every multipath component 's delay drifting due to Doppler effect .

多普勒效应和矢量合成是ADCP实现剖面测量的理论基础。

Doppler effect and vector summation scheme are the theoretical basis of profile measurement of ADCP .

还分析了多径传播和金属干扰对集装箱RFID系统的影响，给出了可以忽略多经时延和多普勒效应的理论依据，提出了解决集装箱RFID系统中金属干扰问题的技术措施。

The influence of the multi-path transmission and metal interference to the container RFID system were also analyzed . The theoretical basis to ignore the multi-path delay and Doppler Effect was given .

光纤调谐激光器在光通信领域中具有重要意义和应用前景。用负温度高能离子束的相对论多普勒效应实现从红外到X射线连续调谐激光器

This paper discusses the importance and value of all-fibre tunable laser in optical communication . CONTINUOUSLY TURNABLE LASER FROM INFRARED TO X-RAY REGION BY USING THE RELATIVISTIC DOPPLER EFFECT OF HIGH ENERGY ION BEAM IN NEGATIVE TEMPERATURE STATE

经颅多普勒（TranscranialDoppler，TCD）是一种利用超声多普勒效应检测颅内脑底主要动脉的血流动力学及血流生理参数的无创伤性的脑血管疾病的检查方法。

Transcranial Doppler is a non-invasive cerebrovascular disease inspection methods which uses ultrasonic Doppler effect to detect the intracranial brain artery at the end of the main hemodynamic and blood physiological parameters .

本文综述了γ暴当前的观测特征和理论成果，详细介绍了本人在攻读博士学位期间基于Qin模型的多普勒效应对γ暴光变曲线脉冲的影响的三个研究工作。

We summarize the observational and theoretical results of Gamma-ray bursts ( GRBs ), and present in detail the results of our three researches on the Doppler effect of fireballs on the light curves of GRBs based on Qin model .

在移动通信系统中，由于衰落和多普勒效应，为了实现基于Viterbi算法的极大似然序列估计（MLSE），需要不断跟踪信道参数变化。

In mobile communication system , a continuous channel estimation and tracing method is needed to implement the Viterbi algorithm of MLSE because of fading and Doppler effect .

探讨了利用DirectSound技术实现声音的混音、回放和3D效果的原理及处理过程，实现了机车声音仿真的3D音效和多普勒效应。

At last , the paper discusses the principle and the process of disposal of using DirectSound technology to realize real time sound synthesization , playback and 3D sound effect , and realize 3D effect and Doppler Effect of the sound simulation .

雷达微多普勒效应是由学者VictorC.Chen提出的一个较新的理论体系，是基于物体微动模型发展起来的。

A new academic system called micro-Doppler which is put forward by the famous scholar Victor C.Chen is developing on the basis of micro motion of the object .

在火球模型下，我们详细地推导了Gamma射线暴计数率的公式，其中膨胀火球面的多普勒效应是考虑的主要因素。

We derive in a much detail the formula of count rates , in terms of the integral of time , of gamma-ray bursts in the framework of fireballs , where the Doppler effect of the expanding fireball surface is the key factor to be concerned .

介绍了非大气窗口毫米波FMCW（调频连续波）近程雷达的工作原理，对系统的主要参数f0、TM、ΔFM进行了分析，并讨论了多普勒效应和寄生调幅对参数选择的影响。

Introduces the working principle of a non-atmospheric window millimeter wave FMCW short range radar , analyzes the system primary parameters f_0 、 T_M 、Δ F_M and discusses the effect on parameters choice of Doppler result and parasitic amplitude modulation .

针对水声信道中高多普勒效应的特性，研究了一种宽带多普勒频偏估计与补偿的方法，并将其应用于水声ZP-OFDM系统中。

Then estimation and compensation methods of the wideband Doppler shift in the high Doppler factor of the characteristics are applied to underwater acoustic ZP-OFDM system .

DRM采用OFDM调制方式和多级信道编码，使用交织、差错保护技术，大大地减轻了频率选择性衰落、多径时延以及多普勒效应的影响，提高了信号传输质量和稳定性。

OFDM as well as multi-channel-coding and multi-modulation is adopted by DRM . This combine with interleaving and error protection to decrease the effect of frequency selective fading , multi-path time delay and Doppler effect . Then the robustness of the signal transmitted is enhanced .