最大多普勒频移,maximum Doppler frequency
1)maximum Doppler frequency最大多普勒频移
1.Themaximum Doppler frequency shift is an important parameter which affects the performance of the OFDM system.在OFDM系统中,影响其性能的一个重要参数就是最大多普勒频移。
英文短句/例句
1.A Maximum Doppler Frequency Estimation Algorithm in OFDM System Based on Transform Field基于变换域的OFDM系统最大多普勒频移估计算法
2.satellite Doppler shift measurement卫星多普勒频移测量
3.Doppler-shift ocean-current meter多普勒频移海流测速仪
4.Mobile Communication Doppler Frequency Shift and High-speed Railway Coverage Technology移动通信多普勒频移与高铁覆盖技术
5.Carrier-frequency Capture Base on Bispectrum Estimation under Extremely Low SNR and Large Doppler Frequency Shifting极低信噪比大多普勒频移条件下基于双谱实现载频提取
6.Variations of Doppler Shift and Spread for HF One-hop Skywave短波─跳天波多普勒频移和展宽的变化
7.ANALYSIS OF DOPPLER FREQUENCY DRIFT FOR MEASUREMENT OF FISHERIES UNDERWATER ACOUSTICS对渔业水声测量中多普勒频移的分析
8.Research on Doppler Frequency Offset in GSM-R Based on Laurent Decomposition;基于Laurent分解的GSM-R多普勒频移研究
9.Demodulate Method of BPSK Signal With Doppler Shift一种含多普勒频移BPSK信号的解调方法
10.Effect of Doppler Frequency Shift on Linear Frequency Modulation Signal Pulse Compression多普勒频移对线性调频信号脉冲压缩的影响
11.A General Formula of Dopper Shift from 4-Dimensional Wavevector Transformation用四维波矢量变换导出多普勒频移普遍公式
12.Doppler frequency drift and timing error were considered in state transform equations.状态方程综合考虑了多普勒频移、定时误差。
13.The Compensation for the Doppler Spectrum Centroid Deviation of the SAR合成孔径雷达多普勒频谱偏移误差的补偿
14.The infection of Dopper-shift on steady-state populations of a moving three-level ladder-type atom多普勒频移对运动三能级原子稳态布居的影响
15.Restraint Model Based on Cyclic-correlation for Doppler in the Multiplex System;基于循环相关的复合系统多普勒频移抑制模型
16.Research on Capture and Compensation of Doppler Shift in TDRSS;TDRSS中多普勒频移估计和补偿方法的研究
17.Design and Simulation of Doppler Value-based K Hop Clustering Algorithm基于多普勒频移的k跳分簇算法设计与仿真
18.Target speed vector estimation based on bistatic Doppler shift基于多普勒频移的双基地声纳目标速度测量
相关短句/例句
maximum Doppler shift estimation最大多普勒频移估计
1.Formaximum Doppler shift estimation in multi-input multi-output(MIMO) systems,the single-factor analysis of variance was applied to establish mathematical model and perform hypotheses testing for estimated values.针对多入多出(MIMO)系统中的最大多普勒频移估计,运用单因素试验的方差分析法对多组估计值进行建模和假设检验,提出了基于最大距离判决和置换均值原则的野值剔除方法。
3)large Doppler frequency shifting大多普勒频移
1.To actualize carrier-frequency capture under extremely low signal-to-noise ratio(SNR) andlarge Doppler frequency shifting, a method is proposed, which bases on bispectrum estimation using time-domain extraction and down converter.针对极低信噪比大多普勒频移条件下载波提取问题,提出了一种基于AR模型双谱估计的下变频时域抽取载波提取方案,并在此基础上提出了分通道的改进方案,以及对其进行了MATLAB仿真。
4)Doppler frequency-shift多普勒频移
1.This paper introduces the methods of setting the jamming power, azimuth jam-delay, distance jam-delay andDoppler frequency-shift in the process of jamming the general radar.文中介绍了对常规雷达进行航迹欺骗时,干扰功率、角度干扰时延、距离干扰时延和多普勒频移等干扰参数的设置方法,给出了相关公式。
2.In the satellite navigation and positioning system,Doppler frequency-shift is the key problems that degrade the performance of satellite receiver.为了克服多普勒频率偏移的影响,提高接收机的GPS信号捕获速度,对多普勒频移估计算法进行了研究。
3.The production ofDoppler frequency-shift is analyzed under the high dynamic condition.文章分析了动态环境下多普勒频移的产生,研究了多普勒频移的估算方法并建立了数学模型,在此基础上提出了一种运用DSP结合专用的DDS芯片AD9954模拟多普勒频移的方案。
5)doppler shift多普勒频移
1.Detection of Doppler shift based on excitation bifurcation of duffing oscillator;达芬振子激励分叉在多普勒频移检测中的应用
2.Acquisition method of the Doppler shift based on the Costas loop;基于科斯塔斯环的多普勒频移捕获方法
3.Research on the method of elimination of the Doppler shift in the TDRSS;TDRSS中多普勒频移消除方法的研究
6)Doppler frequency多普勒频移
1.Doppler frequency estimation of radar signal based on cyclic cross-correlation amplitude;基于循环互相关的窄带回波多普勒频移估计
2.By calculating the auto-correlation function of cycle preamble of OFDM symbol, the maximum value ofDoppler frequency excursion is obtained.为了估计移动正交频分复用(OFDM)系统中衰落信道下的多普勒干扰,提出了利用OFDM符号的循环前缀检测最大多普勒频移的方法。
3.In this paper, theDoppler frequency and time-delay estimators of wideband echoes for LFM pulse radar are discussed.针对LFM脉冲雷达的宽带回波信号的多普勒频移和时延估计问题进行了研究。
延伸阅读
多普勒频移多普勒频移物理学术语。又称“多普勒频率”。由多普勒效应引起发射频率与运动目标反射波或散射波信号频率之间的频差。反射体引起的多普勒频移(fd)与发射频率(fs)的关系式为fd=(2Vcosθ)·fs，C为声速，V为反射体的运动速度，θ为反射体运动方向与声束指向之间的夹角。取超声诊断中的典型数据可算得血流。胎心检测中的多普勒频移(fd)均在声频范围之内，因此这类诊断仪器均可采用扬声器来监听。
