ID 原文 译文
1103 然后进行时频图像预处理以保留时频图像完备信息，适应深度学习模型输入; Then the time-frequency image pre-processing is carried out to retain the time-frequency image complete information and adapt to the deep learning model input.
1104 最后构建扩张残差网络以自动提取信号时频图像特征，实现雷达辐射源信号分类识别。 Finally, the DRN is constructed to automatically extract the signal time-frequencyimage features and realize the recognition of radar emitter signal.
1105 实验结果表明，信噪比为-6dB 时，该方法对 16类雷达辐射源信号的整体识别正确率能够达到 98.2% ，对时频图像特征相似的类 LFM( Linear Frequency Modulation) 信号的整体识别正确率超过 95% 。 Experimental results show that when the SNR is － 6dB, theoverall recognition rate of the proposed method for 16 types of radar signals can reach 98. 2% , and the overall recognitionrate for time-frequency image similar to linear frequency modulation ( LFM) signals is more than 95% .
1106 本文提供了一种新的雷达辐射源信号智能识别方法，具有较好的工程应用前景。 In this paper, a newintelligent recognition method for radar emitter signal is presented, which has nice engineering application prospects.
1107 针对传统压电发电机固有频率单一，频率采集范围窄和能量采集效率低等缺陷，且无法满足当前无线传感器在特殊工作环境中所需的宽频带和大功率输出。 Traditional piezoelectric vibration generator has the defects including single natural frequency, narrow workbandwidth and low energy harvesting efficiency, which is unable to meet the wideband and high-power output requirementsof wireless sensor in a special environment.
1108 本文基于模态分离技术提出了一种 3 × n 阵列式压电发电结构， A neat 3 × n element energy harvester array exploiting multi-vibration modes separation technique, has been designed, fabricated, and characterized.
1109 并利用 COMSOL 有限元仿真软件对其进行仿真分析， The vibration modes of the 3 × n generators have been analyzed by COMSOL software.
1110 优化参数后 3 × 5 阵列式采集系统在低于 50Hz 的频率范围内带宽为 15.6Hz。实验测试结果发现 3 × 5 阵列式发电机的带宽拓宽至 13.8Hz; A considerable wideband of 15. 6 Hz in simulation and 13. 8 Hz in experiment with 3 × 5array energy harvester has been gained in a very low frequency range ( below 50 Hz) .
1111 同时在 11Hz 的共振频率下，最优负载电阻值为 350kΩ 时，可获得的最大输出功率为 2.12mW; Experimental results showed that theadjusted 3 × 5 array harvester could generate the output power of about 2. 12 mW at an 11 Hz resonant frequency with theoptimum load resistance 350 kΩ.
1112 最后测试其半功率( 1.05mW) 带宽达 15.3Hz。 Meanwhile, the half-power ( 1. 05 mW) bandwidth could reach up to 15. 3 Hz.