Instantaneous spectrum detection 瞬态谱测试技术
Instantaneous Spectrum Testing Method 瞬态光谱测量技术
instantaneous spectrum detection technique 瞬态测试技术
instantaneous power spectrum density 瞬时功率谱密度
instantaneous energy spectrum 瞬时能量谱 ; 及瞬时能谱
instantaneous wide spectrum 瞬时宽谱
instantaneous power spectrum 瞬时功率谱
Finally, the method of solving instantaneous acceleration power spectrum of nonstationary random response of arbitrarily point on vehicle is presented.
最后给出如何求解车辆上任一固定点非平稳随机响应的瞬时加速度功率谱。
The feature that structures have the selectivity to the earthquake motions frequency and structure response has the close corresponding relation with instantaneous energy spectrum is pointed out.
指出了结构对地震动的频率具有选择性，结构的响应与瞬时能量谱之间具有密切的对应关系。
The instantaneous power spectrum of nonstationary random vibration signals is discussed in this paper.
本文研究了非平稳随机振动信号的瞬时功率谱。
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