ID 原文 译文
53237 仿真结果表明，使用修正的卡方-AD 联合检测能够大大提高快衰落信道中频谱检测的性能，在噪声方差未知情况下取得了突破性的检测效果。 Simulations show that, for a fast fading channel, the modified chi-square-AD joint test greatly improves the performance of spectrum detection, and makes a breakthrough when the noise variance is unknown.
53238 为了有效解决非线性模拟电路故障诊断问题，提出了一种基于灵敏度分析及 Volterra 级数理论的故障诊断方法。 To effectively solve the fault diagnosis of nonlinear analog circuits, a novel fault diagnosis method is proposed based on sensitivity analysis and Volterra series.
53239 首先采用灵敏度分析估计激励信号的有效频带范围，根据 Volterra 级数确定激励信号的频率成分，以使故障可测度最大化; Firstly, the effective frequency band range of the input stimuli signal is estimated by sensitivity analysis, then the frequency components of stimulus signal are determined in terms of Volterra series, which make fault observability obvious.
53240 其次基于多音激励下 Volterra 核的频域输出特性进行故障特征提取，并采用主元分析（principal component analysis，PCA）对故障特征进行维数压缩; Secondly, fault signatures are extracted by virtue of the frequency output properties of Volterra kernels stimulated by the multitone signal, then they are compressed with principal component analysis (PCA).
53241 最后构造多值分类支持向量机（support vector machine，SVM）网络进行故障模式判别。 Finally, the multiclass support vector machine (SVM) network is constructed for classifying fault types.
53242 理论分析及仿真结果表明，与以往方法比较，该方法可以显著提高非线性模拟电路故障识别率，验证了该方法的有效性。 The theoretical analysis and simulation results indicate that, compared with former method, the proposed method can observably increase fault recognition rate of nonlinear analog circuits, which validates effectiveness of the proposed method.
53243 APSK 信号对卫星转发器的非线性极其敏感，解译之前需要进行均衡补偿。 APSK is very sensitive with the nonlinearity of satellite transponder, which needs equalization before demodulation and decoding.
53244 传统接收机中的均衡、解调和译码过程是相互独立的，本文将 DFE 均衡应用到 BICM-ID 卫星系统中，并对其进行改进，实现了均衡和解译的联合处理，从而获得更好的性能。 Conventional receivers execute equalization, demodulation and decoding independently. This paper applies DFE equalization to BICM-ID satellite system and proposes some improvements, which combine equalization, demodulation and decoding, and as a result get better performance.
53245 仿真结果验证了算法的有效性，而且相比传统接收，信噪比改善了 1. 5dB。 Simulation results show that the algorithm are effective and the Eb/N0 improves 1. 5dB.
53246 现今，布尔可满足性（SAT）解算器已在工业电路验证过程中得到了广泛的应用。 Currently, Boolean satisfiability (SAT) solvers have been widely used in large circuit verification.