Although the additional frequency diversity gain can be attained, by using efficient detection techniques, the performance of OFDM-CDM system is better than that of conventional OFDM.
CDM系统虽然获得了频率分集增益,但是,它必须通过有效的检测技术才能使其性能较之OFDM系统有所改善。
Optionally, you can list additional information for each URL, including its last modification date, its change frequency, an expiration date, and a priority value.
您可以选择性地为每个URL列出额外的信息,包括URL的最后修改时间、更改频率、终止日期和优先值。
The main effect of these additional observations is a 100-point increase in the frequency count for each response alternative.
这些额外调查对象的主要影响是,使得每个回答情形的频率计数增加了 100点。
The results of the frequency distribution need to be accessible for additional analysis.
频率分布的结果必须能够访问,以便进行其他的分析。
In addition, the upcoming Energy-related Products Directive deadline in 2015 will spur additional growth in the European variable frequency drives market.
此外,2015年即将到来的能源相关产品指引期限,将推动欧洲变频器市场的额外增长。
The authors propose an additional control strategy, which changes the power or current order according to the variation of system frequency, thus the power balance of the grid can be implemented.
提出了一种附加控制策略,该附加控制策略根据系统频率的变化改变直流系统的功率或电流指令,从而实现系统功率的平衡。
Additional negative feedback is provided to set loop gain to unity at the oscillation frequency, to stabilize the frequency of oscillation, and to reduce harmonic distortion.
为了使振荡频率稳定并降低谐波失真,需要加入一个在震荡频率处能够提供单位增益的负反馈路径。
The blind estimation algorithm of Doppler frequency suitable for telemetry systems involving additional white Gaussian noise (AWGN) channels is proposed in this paper.
提出一种适应于在加性高斯白噪声信道(AWGN)下遥测系统的多普勒频偏盲估计算法。
Additional current density, which is a function of frequency, can be used to describe the effect of the ionosphere in the process of electromagnetic pulse propagation.
电离层对电磁脉冲传播的影响可以用一个频域的电流密度来描述,在时域则等效为一附加的电流密度和电导率。
The additional axial finite magnetic field also has some influence on the beam-wave interaction efficiency and the resonance frequency.
外加纵向有限磁场也对注波互作用效率和谐振频率有一定的影响。
Such systems face an additional contribution to the inhomogeneity of the radio frequency (RF) field when high magnetic fields are applied.
当施加高磁场时,这种系统会面临对射频(RF)场不均匀性产生额外作用的问题。
Among others, additional devices for electronic length measuring and defects counting are established and frequency conversion technique is used for mechanical transmission.
主要为增加电子计长功能、增加了电子计疵功能、机械传动采用了变频技术。
To overcome the frequency offset between the mixing signal and modulating signal in PGC demodulation, an additional (A/D) channel in DSP system is used to sample the modulating signal.
针对PGC解调中混频信号与实际调制信号的频率偏差,在DSP系统实现中采用一路A/D转换器对调制信号进行同步采样,从而克服了频率偏差对解调结果的影响。
To overcome the frequency offset between the mixing signal and modulating signal in PGC demodulation, an additional (A/D) channel in DSP system is used to sample the modulating signal.
针对PGC解调中混频信号与实际调制信号的频率偏差,在DSP系统实现中采用一路A/D转换器对调制信号进行同步采样,从而克服了频率偏差对解调结果的影响。
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