| 单词 | doppler frequency |
| 释义 | 例句释义: 〔数〕多普勒频率,都卜勒频率,都普勒频律,杜普勒频率变动外 1. The invention discloses a Doppler frequency searching method in a GNSS receiver and a correlator thereof. 本发明揭示了一种在GNSS接收器中搜寻多普勒频率的方法及相应的相关器。 www.bing.com 2. The maximum Doppler frequency can be estimated more accurately over a wider range of Doppler spreads than prior art. 可以在比现有技术更宽的多普勒扩展范围上更精确地估算多普勒极限频率。 ip.com 3. In recent years, many Doppler frequency estimation algorithms have been studied for the above wireless mobile applications. 近年来，为了更好地为这些无线应用服务，人们提出了很多算法来估计最大多普勒频移。 www.boshuo.net 4. A close-form range curvature factor is constructed through the correspondence of the instant Doppler frequency to the squint angles. 利用瞬时多普勒频率与波束斜视角的对应关系构造出一种具有闭合解的距离弯曲因子。 www.fabiao.net 5. The maximum 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。 www.dictall.com 6. An estimation method of direction of arrival (DoA) and Doppler frequency for signals in the presence of array errors is proposed. 在均匀线阵存在误差的情况下，提出了一种信号波达方向和多普勒频率的估计方法。 www.magsci.org 7. Doppler frequency offset is always the passive factor that can't be neglected in satellite communication. 多普勒频偏一直是卫星通信中不可忽视的消极因素。 www.dictall.com 8. A new algorithm for Doppler frequency compensation used in stepped-frequency signal processing is proposed. 提出一种步进频信号处理中多普勒效应补偿的新方法。 www.ceps.com.tw 9. During simulation process, mistakes could be possibly made cause of system frequency error and Doppler frequency shift. 在仿真中发现，系统频率误差和多普勒频偏的存在会导致解调出错。 www.fabiao.net 10. By maximum likelihood estimation, the likelihood probability of estimating Doppler frequency is maximized. 在时间域考虑了测量噪声，使得多普勒频率估计的似然概率达到最大。 www.magsci.org 1. A global positioning system (GPS) Doppler frequency shift estimation method in earth centered earth fixed (ECEF) frame was proposed. 提出了一种通用意义上的全球定位系统（GPS）信号多普勒频移估计方法。 www.ceps.com.tw 2. The Doppler frequency can be obtained as a heterodyne or beat effect. 由于外差或频差效应，能够得到多普勒频率。 www.bing.com 3. The properties of Doppler centroid frequency and Doppler frequency rate of GEO SAR is discussed in detail. 探讨了同步轨道SAR多普勒中心频率和调频率的特征。 jeit.ie.ac.cn 4. This paper presents a new method for rapid Doppler frequency shift estimation and frame synchronization in HF burst-communication. 提出了一种短波突变通讯中快速多普勒频偏估值和帧同步的新方法。 www.dictall.com 5. This algorithm has small computation amount load and has high estimation precision of doppler frequency rata-of-change. 算法具有计算量小、多普勒频率变化率估计精度高的优点。 www.ceps.com.tw 6. Doppler frequency expression is derived under consideration of the platform motion and the earth rotation. 综合考虑平台运动以及地球自转效应，推导得到了该模型下地面杂波单元的多普勒频率表达式。 www.ceps.com.tw 7. But if the Doppler frequency offset exceed the capture range of PLL, the carrier synchronization will fail. 但是，一旦多普勒频移超出了锁相环的频率捕捉范围，就无法完成载频同步。 www.fabiao.net 8. The reflected ultrasound signal by the RBC contains doppler frequency shift , which is proportional positive to the blood flow velocity. 经红细胞反射后超声回波信号中含有多普勒频移信号，而正比于血流速度。 blog.sina.com.cn 9. This thesis studies Doppler frequency measurement system is precisely to solve these two problems. 本论文研究的多普勒测频系统正是为了解决这两个问题。 paper.pet2008.cn 10. A new technique to estimate the Doppler frequency rate is proposed with high accuracy and low computation complexity. 本文提出了估算多普勒调频率的一种新方法，其精度高、计算量少。 www.madio.net 1. Meantime the Doppler frequency shift will make the signal exist phase error in a persistence time of one code. 另外，它也造成信号在一个码元的持续时间内有较大的相位误差。 www.fabiao.net 2. A new blind estimate of 2D angle and Doppler frequency for fluctuating target signals was proposed with sensor gain uncertainties. 在各阵元增益幅度不一致的条件下，提出了一种起伏目标的二维方向角和多普勒频率盲估计的新方法。 www.dictall.com 3. With the high frequency, it can get great Doppler frequency which be propitious to measure slow velocity. 其频率高，可获得更大的多普勒频率，更有利于慢速目标的检测； www.fabiao.net 4. Correct the Range Measurement Error due to Doppler Frequency in Linear Frequency Modulation Pulse Compression Radars 线性调频波形消除多普勒频率对距离测量研究 ilib.cn 5. Simulation of Doppler frequency shift for a moving target and chaff cloud above the oceanic surface 海面上方运动目标和人造箔条云干扰的多普勒频移仿真 scholar.ilib.cn 6. Determination of the natural frequencies in helicopter noise by Doppler frequency shifts superposition 多普勒频移修正在测定直升机飞行噪声固有频率中的应用 service.ilib.cn 7. A Novel Estimation Method of Maximum Doppler Frequency in Rake Receiver and its Application in Channel Estimation Rake接收机中信道最大多普勒频移估计的一种新方法及其在信道估计中的应用 service.ilib.cn 8. The Doppler frequency shift of a moving ladder-type three level atom in broad-band squeezed vacuum 宽带压缩真空下运动梯型三能级原子的多普勒频移 service.ilib.cn 9. The Accurate Measurement Algorithm of Doppler Frequency Rate between the Clusters of Pulses 脉冲群间多普勒频率变化率的高精度测量算法 service.ilib.cn 10. Simple study method for ultrasonic grating experiment and its Doppler frequency shift 超声光栅实验及其多普勒频移的一种简单研究方法 service.ilib.cn 1. Estimation of Direction of Arrival and Doppler Frequency with Array Error 存在阵列误差条件下的信号波达方向和多普勒频率估计 service.ilib.cn 2. Application of Synchronous Multi-cycle Frequency Measurement and CPLD in Doppler Frequency Measurement CPLD和多周期同步测频法在多普勒频率测量系统中的应用 www.ilib.cn 3. Researching of the Second-order Doppler Frequency Shift in Optically Pumped Cesium Frequency Standard 光抽运铯原子束频标的二级多普勒频移研究 service.ilib.cn 4. On Improving Joint Estimation of Doppler Frequency and Multipath Time Delay of Overlapping Echoes for LFM Pulse Sonar 基于自适应核时频分布的多普勒频移及多径时延估计 ilib.cn 5. An Improved Estimation Algorithm of Minimum Entropy Doppler Frequency Modulation Ratio in SAR Image SAR成像中一种改进的最小熵多普勒调频率估计算法 ilib.cn 6. Time Domain Method for HF Doppler Frequency Shift with High Precision in Ionospheric Vertical Sounding 电离层高精度高频多普勒频移参量的时域探测方法 www.ilib.cn 7. The Practice of Doppler Frequency-Shift Signal Extraction in Ultrasonic Blood Flow Detector 多普勒频移信号提取技术在超声血流检测中应用 service.ilib.cn 8. Real-time Estimation of Doppler Frequency Offset in LEO Mobile Satellite Communication 低轨卫星的多普勒频移实时估计 scholar.ilib.cn 9. An Algorithm for Estimating DOA and Doppler Frequency of Signals Incident on Uniform Circular Array 基于均匀圆阵的信号源DOA和多普勒频率估计算法 www.ilib.cn 10. develop a Doppler frequency measurement system which used the TMS320C6416 DSP chip as the core processor; 自行开发了一套以TMS320C6416DSP芯片为核心处理器的多普勒测频系统； paper.pet2008.cn 1. Maximum Likelihood Estimation of High Dynamic Doppler Frequency 高动态多普勒频率的最大似然估计器 www.ilib.cn 2. Doppler frequency shift influence on FSK demodulation in SW air-ground communication 短波地空通信中的多谱勒频移及其对FSK解调的影响 www.ilib.cn 3. Digital Extraction of Doppler Frequency-Shift Signal for Ultrasonic Blood Flow Meter 超声血流仪多普勒频移信号的数字化提取 ilib.cn 4. The particle property of light and Doppler frequency shift 光的粒子性与多普勒频移 service.ilib.cn 5. An Adaptive Four Dimensional Kalman Filter for Doppler Frequency Tracking 多普勒频率跟踪的四阶加权扩展卡尔曼滤波器 www.ilib.cn 6. Multiple Look Processing and Estimation of Doppler Frequency Rate fR in SAR Imaging System SAR成像系统中的多视处理及多普勒调频斜率的估计 ilib.cn 7. Association Algorithm of Data Fusion Using Doppler Frequency of Targets 利用目标多普勒频率的数据融合关联算法 ilib.cn 8. The change in frequency is called the Doppler frequency and it is approximately: 频率的变化被称为多普勒频移，它大约是： zhidao.baidu.com 9. Study of location using the difference of doppler frequency 多普勒频率差定位技术研究 service.ilib.cn 10. Application of Quaternion in DOA and Doppler Frequency Estimation 四元数在方向角和多普勒频率同时估计中的应用 www.ilib.cn 1. New Applications of Doppler Frequency in Squint SAR Imaging Processing 斜视SAR成像处理中多普勒频率的新应用 www.ilib.cn 2. An Algorithm for Target Range, Azimuth Angle and Doppler Frequency Estimation of HF-SWR 高频地波超视距雷达目标距离、方位角和多普勒频移估计算法 service.ilib.cn 3. A Study on Adaptive Maximal Doppler Frequency Estimation for WCDMA Systems WCDMA中自适应最大多普勒频移估计方法的研究 www.ilib.cn 4. An Accurate Estimation Algorithm for Doppler Frequency Rate-of-Change Based on Wavelet Transform 基于小波变换的多普勒频率变化率高精度估计方法 www.ilib.cn 5. A New Method of Estimating the Doppler Frequency Rate of Spaceborne SAR 一种新的星载SAR多普勒调频率的估计方法 ilib.cn 6. Enhance the Efficiency of Fuze Warhead Matching by Doppler Frequency of Fuze 利用引信多普勒频率提高引战配合效率 www.ilib.cn 7. Accuracy of Estimation of Doppler Frequency Rate for Spaceborne SAR 星载合成孔径雷达多普勒调频率估计精度分析 ilib.cn 8. Measurement of the liquid current velocity Based on the laser Doppler frequency shift technique 基于激光多普勒频移技术测量液流速度 service.ilib.cn 9. A Method of Removing the Outliers of Doppler Frequency Using Wavelet Transform 用小波变换去除多普勒频率估计野值点的方法 www.ilib.cn 10. The Research on the Algorithm of Dealing with Doppler Frequency Offset 关于克服多普勒频移的地址码捕获算法研究 www.ilib.cn 1. Calculation of Echo Doppler Frequency for Satellite-Borne SAR 星载合成孔径雷达回波多普勒频率的计算 ilib.cn 2. A FPGA-Based Spread Spectrum Doppler Frequency Simulator 基于FPGA的扩频多普勒模拟信号的设计 ilib.cn 3. Detection of weak signal with low Doppler frequency in waveguide 波导中弱的低多普勒信号检测 ilib.cn 4. A Novel Method of Estimating Maximum Doppler Frequency for OFDM Systems OFDM系统一种新的多普勒频偏估计方法 www.ilib.cn 5. Research on Doppler Frequency-shift Estimation of GPS GPS系统多普勒频移估算的研究 www.ilib.cn 6. 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 ilib.cn 7. Estimation of DoA and Doppler Frequency with Non-Ideal Array 非理想阵列的信号波达方向和多普勒频率估计 www.ilib.cn 8. Discrimination of Doppler Frequency Shift Based on Fizeau Interferometer and PMT Array 基于菲佐干涉仪与多通道光电倍增管阵列的多普勒频移检测技术 www.opticsjournal.net 9. Channel estimation based on Doppler frequency estimation for WCDMA systems WCDMA系统中基于多普勒频移估计的信道估计方法 www.ilib.cn 10. A Fast Algorithm for Estimating DOA and Doppler Frequency of Signals Based on Uniform Circular Array 一种新的波达方向和多普勒频率估计算法 scholar.ilib.cn 1. Study on Doppler Frequency Scope of Linear FM Signal 线性调频信号的多普勒频移范围研究 www.ilib.cn 2. Large Doppler Frequency Shift Estimation Algorithm Based on AR Model 一种基于AR模型的大频偏估计算法 www.ilib.cn 3. Modulation of Pulse Doppler Frequency Based on Software DRFM 基于软件DRFM的脉冲多普勒调制 service.ilib.cn 4. An Approach Simulating Doppler Frequency Based on DDS 基于直接数字合成技术的多普勒频率模拟方法 www.ilib.cn 5. A Method of Doppler Frequency Measurement Based on Correlation Analyse and Mode Mathcing 基于相关分析和模式匹配的多普勒频率测量方法 www.ilib.cn 6. Fast Estimation of Radar Doppler Frequency Based on FFT 基于FFT的雷达多普勒频率快速估计方法 service.ilib.cn |
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