The negative Doppler effect will limits the power to an acceptable level during the time delay for protective action.
多普勒负反应性反馈效应能在保护动作延迟的时间内将功率限制在可接受的水平。
Following, code tracking confirm the PN code phase precisely and track every multipath component's delay drifting due to Doppler effect.
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。
In this paper, with Rayleigh fading the random characteristics of multipath time delay and Doppler shift in HF ionospheric channels is discussed.
本文在瑞利衰落模型下，研究了高频电离层信道中多径时延与多普勒频移的随机特性。
The statistic model of air-ground radio communication channel is characterized by the multipath fading, Doppler power spectrum and delay power spectrum.
空地通信信道的主要统计特性包括多径衰落特性、多普勒功率谱和时延功率谱。
By analyzing ambiguity function expressions, this paper resolves theoretic Doppler signal resolutions and delay resolutions of single-period and multi-period symmetrical triangle LFMCW signals.
通过分析模糊函数表达式，得到了单、多周期信号的理论多普勒分辨率与时延分辨率。
In this paper, the Doppler frequency and time-delay estimators of wideband echoes for LFM pulse radar are discussed.
针对LF M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。
The wireless propagation environment is described first: analyzing the small-scaled fading, including amplitude fading, multi-path time delay and Doppler spectrum spread.
在本论文中，首先对移动传播环境作了描述，特别是对小尺度多径传播造成的幅度衰落，多径时延和多普勒频移进行了分析；
These results show that such phase distributions will cause the gain of synthetic array and the signal to ambiguity ratio of Doppler-delay response to be decreased.
计算表明，它不仅会使综合阵列增益降低，而且会使多普勒-时延响应的信号-模糊比下降。
OFDM is a high transmission technology in the wireless propagation environment. It is fitted to transmit high-speed data in the wireless channel which has multi-path delay and Doppler frequency shift.
OFDM是一种无线传播环境下的高速传输技术，适合在多径传播和多普勒频移的无线信道中传输高速数据。
Transparent tone-in-band(TTIB) and feedforward signal regeneration(FFSR) is a technology to combat the effects of multipath propagation delay and doppler effect in wireless channels.
TTIB（透明带内导音）及FFSR（前馈信号再生）技术是一种可抗无线信道中多径时延及多谱勒频移引起的信号衰落的技术。
Transparent tone-in-band(TTIB) and feedforward signal regeneration(FFSR) is a technology to combat the effects of multipath propagation delay and doppler effect in wireless channels.
TTIB（透明带内导音）及FFSR（前馈信号再生）技术是一种可抗无线信道中多径时延及多谱勒频移引起的信号衰落的技术。
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