ID 原文 译文
43706 结合 NASA 埃姆斯中心的加速热老化试验数据，确定了以集电极－发射极关断电压尖峰峰值作为失效预测依据。 Based on the accelerated thermal aging experimental data of NASA Ames Center, the peak value of the collector-emitterswitching off voltage was determined as the failure prediction basis.
43707 利用高斯滤波的方法对试验数据进行预处理，构建了单、多隐层 Elman 神经网络寿命预测模型，并构建了广义回归神经网络 ( GＲNN) 寿命预测模型作为对比模型。 The experimental data were pre-processed by Gauss filtering method, life prediction models of the single and multi-hidden layer Elmanneural network were constructed, and the life prediction model of generalized regression neural network(GＲNN) was constructed as the contrast model.
43708 采用均方误差、平均绝对误差、最大相对误差作为各模型预测性能的评估指标。 The mean square error, mean absolute error and maximum relative error were used as the evaluation indexes of model prediction performance.
43709 结果表明，提出的 Elman 神经网络模型比 GＲNN 模型有更好的预测效果。 The results show that Elman neural network model has better prediction performance than GＲNN model.
43710 二隐层的 Elman神经网络模型均方误差为 0. 202 0%，平均绝对误差为 0. 387 6%，最大相对误差为 3. 023 0%，可以更好地实现 IGBT 寿命的预测。 The mean squareerror of Elman neural network model with two hidden layers is 0.202 0%, the average absolute error is0.387 6%, and the maximum relative error is 3.023 0%.Then the life prediction of IGBTs can berealized better.
43711 盖革模式 ( GM) 雪崩光电二极管 ( APD) 探测器具有单光子级探测灵敏度，可广泛用于三维成像和测量测绘等领域。 With single-photon detection sensitivity, the Geiger-mode (GM) avalanche photodiode(APD) detector is widely used in 3D imaging, surveying and mapping and other fields.
43712 针对 InGaAs 基 GM-APD，提出一种用于自由模式探测的主动淬灭电路。 Based on InGaAsGM-APD, an active quenching circuit for free-running mode detection was presented.
43713 该电路采用电容积分方式将雪崩电流转换为电压信号，利用反相器对其进行检测与提取，同时经淬灭支路将雪崩快速淬灭，一定延时后恢复支路使 APD 重新进入盖革状态; The avalanche current was converted into a voltage signal by capacitance integrating, which was then detected and extractedby inverters.Simultaneously, the avalanche was quickly quenched by the quenching branch.After a delay, the APD was restored to the Geiger state by the restoration branch.
43714 采用施密特触发器以增强淬灭支路的抗干扰能力，防止盖革恢复过程中导致淬灭控制信号的振荡; Schmitt trigger was adopted to enhance the anti-interference ability of the quenching branch, preventing the quenching control signal fromoscillating during the recovery to Geiger mode.
43715 利用ＲC 延迟电路实现探测器死时间可调。 Adjustment of detector＇s dead time was achieved by using the ＲC delay circuit.