doppler shift method是什么意思

网络释义

用法例句

This paper introduces the methods of setting the jamming power, azimuth jam-delay, distance jam-delay and Doppler 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。

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。

The production of Doppler 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。

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

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

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

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

By calculating the auto-correlation function of cycle preamble of OFDM symbol, the maximum value of Doppler 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。

In this paper, the Doppler 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。

Doppler frequency shift rapid acquisition and tracking for GMSK signals;

GMSK信号的多普勒频移快捕和跟踪

Simulation of Doppler frequency shift for a moving target and ground clutter;

运动目标回波与地表杂波的多普勒频移的仿真

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

The high velocity of the aircraft introduces severe Doppler frequency offset into data transmission equipment,so a synchronization approach that can immunize airborne data transmission equipment against frequency offset is very important.

机载数传设备的高速运动会带来较大的多普勒频移,设计一种不受频偏影响的同步解决方案对数传性能非常重要;突发方式的数据传输也给数传设备的接收同步带来了难度。

Orthogonal frequency division multiplexing (OFDM) will be widely used in aviation mobile communications for its own advantages,but the complex channel environment and the inter-carriers interference (ICI) caused by Doppler frequency offset will do harm to its performance.

正交频分复用(OFDM)由于其自身的技术优势使其在未来的航空移动通信中将占有重要地位,但航空移动通信中时变的信道环境和多普勒频移造成的严重的子载波之间干扰(ICI),使OFDM在航空移动通信中应用面临着困难。

Its basic theory lies in the estimation of the Doppler frequency offset.

声学多普勒流速剖面仪(ADCP)[1]技术是目前观测海流剖面的最有效方法,其基本原理是测定声波入射到海水中微颗粒后向散射造成的多普勒频移。

satellite Doppler shift measurement

卫星多普勒频移测量

Doppler-shift ocean-current meter

多普勒频移海流测速仪

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

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

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

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

Demodulate Method of BPSK Signal With Doppler Shift

一种含多普勒频移BPSK信号的解调方法

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

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

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。

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

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

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

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

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

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

Extended Kalman Filter Method for High Dynamic Doppler Frequency Shift Estimation

基于扩展卡尔曼滤波的高动态多普勒频移估计

Analysis of Doppler Shift Effect on Channel Capacity of CDMA System

多普勒频移对CDMA系统信道容量影响的分析