• Moisture increases the fading rate, while chemical fumes will change the color balance and eventually ruin the dye images.

    潮湿加速褪色,化学气味则会导致彩色平衡改变甚至损坏染料影象。

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  • In addition, the fading rate of discharge capacity at the upper voltage plateau is also increased by the accelerating trend of electrolyte oxidation.

    另外电解质氧化加速趋势,加快电位平台放电容量衰减速度

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  • The noise generation and filters are performed by a microprocessor for which the input time constant of CTC can be varied to control the fading rate.

    噪声产生滤波板机实现。改变单板机CT C定时器的输入时间常数,就直接调整模拟衰落信号的衰落速率。

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  • The probability density function, cumulative distribution function, average level crossing rate and average fade duration of each composite fading channel are analyzed, and some uniform expression.

    给出了各种复合衰落概率密度函数累积分布函数、平均电平交叉、平均衰落时间统一表达式

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  • V-BLAST (Vertical Bell Laboratories Layerd Space-Time) can be combined with OFDM to achieve high data rate transmission in frequency selective fading channels .

    技术可以OFDM技术结合以便频率选择性衰落信道下提供高数据传输

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  • The simulation of error bit rate performance for multi -channel and frequency -selective Rayleigh fading is carried out, and the simulation results show that the system is.

    用户频率选择性瑞利衰落环境下下行链路的误比特率性能进行仿真,其结果表明系统可行的。

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  • It can waken the multipath effect availably, eliminate symbol interference and fight against frequency select fading. Moreover, the channel utilization rate is high.

    有效对抗多径效应消除符号间干扰对抗频率选择性衰落而且信道利用率

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  • It proved that the main reason of lapse of Ni-MH batteries after high-rate cycles is the fading of negative electrode alloy performance.

    实验结果表明,高倍率充放电循环使电池性能下降主要原因负极合金性能的恶化。

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  • The bit error rate of three modulations in a fast fading channel with cochannel interference is evaluated.

    分析了三种调制方式衰落及抗同道干扰的误比特率性能。

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  • To certain degree, the larger the physical and total quenching rate constants, the better the anti-fading effect of magenta azomethine dye.

    物理速度常数猝灭速度常数愈一定范围内,品红甲亚胺染料防褪色效果

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  • As an efficient data transmission technique, OFDM can resist multi-path fading and realize high data rate transmission.

    作为一种高效数据传输技术正交频分复用(OFDM)技术具有良好的衰落能力,实现数据的高速传输。

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  • A new method of unitary space-time constellation, which can improve the influence on block error rate by fast fading, is designed based on a systematic method.

    系统化星座设计方法基础,提出了一种信道变的酉空时星座设计方案

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  • Orthogonal Frequnency Division Multiplexing(OFDM) is suitable for high rate data transmission in wireless channels because it can combat Inter-Symbol Interference and multipath fading efficiently.

    正交频分复用OFDM)技术具有很强的抗符号干扰、抗多衰落时延的能力。并且保持较高传输速率

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  • The performance of the schemes in condition of slow fading rayleigh channel are theoretically analyzed, and the theoretical expression on reception SNR and bit rate are introduced in this paper.

    本文分别跳频衰落信道、非均匀散射环境瑞利衰落信道移动台移动台瑞利衰落信道的建模进行了深入的研究

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  • OFDM technology has many advantages, such as defending the multipath fading and high bandwidth efficiency, which are suitable for the high-rate data transmission in wireless enviroment.

    而且OFDM技术具有抗多径衰落频谱利用率高等优点特别适合于无线环境下的高速数据传输

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  • Test results show that the developed brake composites have fairly stable friction coefficient, good fading resistance, low wear rate and...

    对比试验表明研制的制动材料摩擦系数稳定,抗衰退性能好,磨损率较小,具有较大的性能价格比优势。

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  • In high bit-rate systems it appears as severe selective fading, whereas it has no significant influence on low bit-rate systems.

    这种干扰微波高速数字系统表现严重选择性衰落低速系统明显影响

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  • To overcome the bad performance in combating fading of BLAST and low code rate of STBC, a layered structure STBC is introduced in this article by combining BLAST and STBC.

    主要介绍发射分集技术用于抗信道衰落提高系统容量空时分组分层空时码的原理和基本特点,并对这些空时编码技术进行了性能分析。

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  • To overcome the bad performance in combating fading of BLAST and low code rate of STBC, a layered structure STBC is introduced in this article by combining BLAST and STBC.

    主要介绍发射分集技术用于抗信道衰落提高系统容量空时分组分层空时码的原理和基本特点,并对这些空时编码技术进行了性能分析。

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