ID 原文 译文
1653 对一段加噪声的仿真信号和一段 EEG(脑电)信号使用提出的方法进行时频分析。 A time-frequency analysis was performed on simulated and real human EEG data using the proposed method.
1654 仿真结果表明:与短时傅里叶的分析方法相比，提出的方法不仅提高了时频谱的频率分辨率和时间分辨率，还有效抑制了噪声。 The simulation results show that the proposed method not only effectively improves time and frequency resolution of the spec-trum, but also effectively suppresses the noise than short-time Fourier transform.
1655 最后从ADMM 算法停止准则的角度说明了算法的收敛。 Finally, the convergence of the algorithmwas illustrated from the perspective of stopping criterion of ADMM algorithm.
1656 针对卫星通信中常用的幅相调制信号，提出了一种基于循环神经网络的信号识别与解调模型。 A cognitive signal recognition and demodulation model is designed based on the cyclic neural network for conventional amplitude-phase satellite modulations.
1657 通过循环神经单元直接对信号时序进行深层特征提取，结合全连接神经网络对特征进行维度映射，最终完成目标信号的调制识别与解调。 Through the cyclic neural unit, the features of the target signal are extrac-ted. And the features are dimension-mapped by the fully connected neural network.
1658 该方法不需要预估目标信号载噪比，克服了人为确定阈值的缺陷，对信号频偏误差、定时误差容忍能力强; The model finally completes the modula-tion recognition and demodulation of the target signal with these mapped features. This method does not need much priorknowledge about signal-to-noise ratio (S /N), and it is not sensitive to frequency offset.
1659 且在开发维护和更新拓展方面，克服了传统算法需重新部署判决规则的缺点，符合实际工程需求。 The method also has good adaptabil-ity in the maintenance and extension, which conforms to the demands of the engineering, while the traditional algorithms need to redeploy the decision rule.
1660 仿真实验表明，当网络训练达到稳态时，在信噪比为 6dB 的条件下，目标信号识别率接近 98% ，解调误码率接近理论门限。 Computer simulations show that the correct recognition probability is close to 98% whenS /N is greater than 6 dB and demodulation error rate is close to the theoretical gate.
1661 本文所建立的理论形式为当今智能化信号处理提供了新思路，其思想同样可应用于其他通信信号处理领域。 The presented theoretical form providesa new idea for intelligent signal processing, and it can also be used in other communication signal processing fields.
1662 针对分段电流舵数/模转换器(Digital-to-Analog Converter，DAC)，通过理论分析和推导，研究电流源阵列系统失配误差和寄生效应对非线性的影响， According to the segmented current steering digital-to-analog converter (DAC), the influence of current mismatch and parasitics in the current array on the nonlinearity of DAC is discussed by theoretical analysis and derivation.