ID 原文 译文
53487 而目前常用的随机投影矩阵与超宽带信道稀疏变换矩阵相关度较高，算法必须在降维比较高时才能达到重构要求，采样速率依然较高。 Common random projection matrix remains high coherence with UWB channel sparse transform matrix and this leads the algorithm achieve reconstruction requirement only at high compressing ratio, which means that it still needs a high sampling speed.
53488 针对上述问题，提出使用贝叶斯压缩感知理论中的自适应投影矩阵设计方法进行超宽带信道估计。 To solve these problems, an UWB channel estimation method based on an adaptive projection matrix using bayesian compressed sensing(BCS) is proposed in this paper.
53489 贝叶斯压缩感知理论给信道向量中的每个值设置受超参数控制的后验概率密度，计算信道向量的统计特性， BCS sets posterior probability density function which is controlled by hyperparameters to each value in the channel vector and computes its statistical characteristics.
53490 并根据协方差矩阵计算新的投影向量，该投影向量可以使重构解的微分熵下降最快。 Using covariance matrix to reckon new projection vector which can lower the differential entropy of reconstruction value steepest.
53491 通过这种自适应的投影矩阵设计方法，可以利用较少的采样值进一步地提高重构解的可信度，达到进一步降低采样速率的目的。 This method enhances the certainty of reconstruction value and lowers the sampling speed using fewer samples.
53492 实验结果表明该方法相对于现有的压缩感知重构算法可以在较低的降维比条件下达到较好的重构效果，显著降低了采样速率。 The experimental results show that this method can achieve a better reconstruction performance compared to the existing CS reconstruction algorithm at low compressing ratio and decrease the sampling speed notably.
53493 在传输线网络瞬态响应灵敏度分析之中，提出了一种基于 NILT 的新的分析方法。 A novel method based on NILT is presented to analyze the sensitivity of transient response of the networks containing transmission lines.
53494 该方法将传输线及其效应连同电子元器件及单元电路作为一个整体， In this method, transmission lines, circuit and its components are taken into account as a whole.
53495 根据传输线在电路中的拓扑关系，将传输线网络瞬态响应灵敏度分析问题转化为求解传输线网络瞬态响应问题，以及传输线 ABCD 矩阵对电路参数的偏导数问题。 According to the topology of the transmission lines in the circuit, the sensitivity of transient response of the circuit can bederived by solving the transient response of the circuit and the partial derivative equation of the ABCD matrix of the transmission lines with respect to the parameters of the circuit.
53496 通过将 ABCD 矩阵进行级数展开，极大地简化了 ABCD 矩阵对电路参数偏导数的计算以及传输线网络瞬态响应灵敏度的分析。 By conducting a series expansion of the parameter matrix, the problem can be simplified dramatically.