不同注入脉冲信号的功率谱计算
doi: 10.3724/SP.J.1146.2005.00779
New Approach to the Power Spectrum Calculation of Several Injection Signals
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摘要: 该文提出了一种新的脉冲信号功率谱计算方法。采用傅里叶级数展开方法，对矩形、正弦和三角等多种注入脉冲信号的功率谱进行分析，研究不同注入脉冲对半导体器件和电路的影响。计算结果表明，相对正弦脉冲、三角脉冲等注入波形，矩形脉冲的功率谱较大，因此矩形注入脉冲更容易导致器件和电路失效，仿真与计算结果一致。采用本文的功率谱计算方法，可以得到明确的功率谱函数关系，而且相对已有计算方法，其计算量也较小。
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关键词:
- 注入信号;功率谱;傅里叶级数
Abstract: This paper presents an improved power spectrum mathematical expresstion of several injection signals. Fourier series expansion is used to analyze the power spectrum of different injection pulses,such as sine,triangle and rectangle wave. On the basis of it, the effect of injection pulse on semiconductor devices and currents are discussed in this paper. Calculated results show the power spectrum of rectangle wave is larger than others. The mathematical expresstion of power spectrum can be obtained using the method given in this paper. Moreover, it has the advantage of simple calculation compared with other methods. -
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