ID 原文 译文
58638 电接触性能测试结果表明,不同粒径及掺杂量的掺镍碳纳米管与金电极间的电接触性能不同,但均可得到一定程度的改善。 Finally, the electrical contact performance test results show that the electrical contact properties between gold electrodes and nickel-doped carbon nanotubes with different particle sizes and doping contents are different, but that all of them can be improved to a certain extent.
58639 按掺镍样品中所掺入颗粒粒径小且量适中、粒径中等且量适中、粒径大且量多的顺序,其接触电阻平均降幅分别约为32.70%、71. 63%及49. 33%。 According to the order of nanoparticles with a small particle size and a moderate amount, those with a moderate particle size and a moderate amount, and those with a large particle size and a large amount in the nickel-doped sample, the average value of the contact resistance decreases by 32. 70%, 71. 63% and 49. 33%, respectively.
58640 当室内可见光通信链路因遮挡产生阻塞引起通信中断时,需要通过辅助中继对信号进行转发,因此建立了室内可见光通信辅助中继系统模型。 When the indoor visible light communication link is interrupted due to occlusion blocking, the signal needs to be forwarded through the auxiliary relay, and therefore, an indoor visible light communication auxiliary relay system model is established.
58641 首先分析了室内可见光通信系统中存在链路阻塞时室内光源在屋顶的位置约束关系,通过利用办公室顶灯作为信号光源和中继,采用非对称削波直流偏置光正交频分复用实现辅助中继的信号复用,保证了遮挡信号中继传输的同时,保持与其目的终端之间的通信; First, the positional constraint relationship of indoor light source on the roof when there is link blockage in the indoor visible light communication system is analyzed by using the office ceiling light as the signal light source and relay, and the asymmetrically multiplexing DC offset optical orthogonal frequency division multiplexing is used to realize the auxiliary relay signal multiplexing, which ensures the occlusion signal relay transmission while maintaining its target terminal.
58642 随后利用遗传算法对光源端和中继端的功率进行优化分配以优化系统性能,并在遮挡情况下与等功率分配方案的系统误码率性能进行了比较。 Then the genetic algorithm is used to optimize the distribution of the power at the source and the relay to optimize the system performance, and the BER performance of the equal power allocation scheme is compared in the occlusion case.
58643 结果表明,当直接通信链路阻塞时,最优功率分配方案的辅助中继系统比采用等功率分配的系统损耗小3 dB。 The results show that when the direct communication link is blocked, the system loss of the auxiliary relay system with the optimal power allocation scheme is 3 dB less than the system with equal power allocation.
58644 由于人类在听觉感知过程中存在掩蔽效应,因此能量高的信号会屏蔽掉其他能量低的信号。 The human ear can only accept one sound signal at one time, and the signal with the highest energy will shield other signals with low energy.
58645 受到这一现象启发,结合自注意力方法和多头注意力方法,提出融合多头自注意力机制的语音增强方法。 According to the above principle, this paper combines the self-attention and the multi-head attention to propose a speech enhancement method based on the multi-head self-attention mechanism.
58646 通过对输入的含噪语音特征施加多头自注意力计算,可以使得输入语音特征的干净语音部分和噪声部分有较为明显的区分,从而使得后续的处理能够更有效地抑制噪声。 By applying multi-head self-attention calculation to the input noisy speech features, the clean speech part and the noise part of the input speech feature can be clearly distinguished, thereby enabling subsequent processing to suppress noise more effectively.
58647 实验结果表明,这种语音增强方法相较于使用门控循环神经网络的语音增强方法,语音增强性能更好,增强语音的语音质量与可懂度更高。 Experimental results show that the proposed method significantly outperforms the method based on the recurrent neural network in terms of both speech quality and intelligibility.