1) Doppler shift
多卜勒频移
1.
To develop the passive acoustic detecting intellectual mine fuse of antiarmed helicopter,this paper presents a method of the motional parameter estimation of he-licopter target through processing the Doppler shift equation of helicopter noise signal byweighted least square algorithm on the basis of analysing helicopter noise signal received inthe acoustic detecting array.
为反武装直升机被动声探测智能雷弹引信研制的需要，该文在分析声测阵所探测到的直升机目标噪声信号的基础上，从加权最小二乘算法出发，提出了一种利用直升机目标噪声信号的多卜勒频移方程，对直升机目标运动参数进行估值的估算方法，并讨论了初值的确定问题，简要分析了估值误差。
2) Doppler frequency
多卜勒频率
1.
If we want to make use of Doppler technique of the ships in navigational radar, first we must get the Doppler frequency, but the related circuit is very complicated, therefore, the cost of the radar is very much.
为解决航海雷达运用多卜勒技术所负担的高造价的问题,提出了一种新的测速方法,这种方法基于多卜勒效应的利用,其核心是捕获多卜勒频率。
3) 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 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。
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 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。
4) 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
5) 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 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。
3.
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。
6) Doppler frequency shift
多普勒频移
1.
Doppler frequency shift rapid acquisition and tracking for GMSK signals;
GMSK信号的多普勒频移快捕和跟踪
2.
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
3.
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
补充资料：移日卜夜
1.谓昼夜相继。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条