Moisture increases the fading rate, while chemical fumes will change the color balance and eventually ruin the dye images.
潮湿会加速褪色,而化学气味则会导致彩色平衡的改变,甚至损坏染料影象。
In addition, the fading rate of discharge capacity at the upper voltage plateau is also increased by the accelerating trend of electrolyte oxidation.
另外电解质的氧化也呈加速趋势,加快了高电位平台放电容量的衰减速度。
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.
噪声的产生和滤波均由单板机实现。改变单板机CT C定时器的输入时间常数,就可直接调整模拟衰落信号的衰落速率。
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的概率密度函数、累积分布函数、平均电平交叉率、平均衰落时间的统一表达式。
V-BLAST (Vertical Bell Laboratories Layerd Space-Time) can be combined with OFDM to achieve high data rate transmission in frequency selective fading channels .
技术可以和OFDM技术结合以便在高的频率选择性衰落信道下提供高数据率的传输。
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.
对在多用户和频率选择性瑞利衰落环境下的下行链路的误比特率性能进行了仿真,其结果表明系统是可行的。
It can waken the multipath effect availably, eliminate symbol interference and fight against frequency select fading. Moreover, the channel utilization rate is high.
他能有效地对抗多径效应,消除符号间干扰,对抗频率选择性衰落,而且信道利用率高。
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的主要原因是负极合金性能的恶化。
The bit error rate of three modulations in a fast fading channel with cochannel interference is evaluated.
分析了这三种调制方式的抗衰落及抗同道干扰的误比特率性能。
To certain degree, the larger the physical and total quenching rate constants, the better the anti-fading effect of magenta azomethine dye.
物理猝灭速度常数和总猝灭速度常数愈大,在一定范围内,品红甲亚胺染料的防褪色效果愈好。
As an efficient data transmission technique, OFDM can resist multi-path fading and realize high data rate transmission.
作为一种高效的数据传输技术,正交频分复用(OFDM)技术具有良好的抗衰落能力,实现数据的高速传输。
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.
在系统化酉空时星座设计方法的基础上,提出了一种抗信道快变的酉空时星座设计方案。
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间干扰、抗多径衰落和时延的能力。并且保持较高的传输速率。
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.
本文分别对跳频瑞利衰落信道、非均匀散射环境下的瑞利衰落信道和移动台对移动台瑞利衰落信道的建模进行了深入的研究。
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。
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,所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。
In high bit-rate systems it appears as severe selective fading, whereas it has no significant influence on low bit-rate systems.
这种干扰在微波高速数字系统中表现为严重的选择性衰落,但对低速系统无明显影响。
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.
主要介绍了发射分集技术中用于抗信道衰落和提高系统容量的空时分组码和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。
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.
主要介绍了发射分集技术中用于抗信道衰落和提高系统容量的空时分组码和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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