2) Time-domain and Frequency-domain
时域及频域
4) time-frequency domain
时频域
1.
On the methods of seismic data instantaneous attributes estimate in time-frequency domain;
时频域内地震资料瞬时属性提取方法研究
2.
Focusing on the problem mentioned above,a new detection method based on normalized quadratic spectrum(NQS) in the time-frequency domain is proposed.
针对传统的基于傅里叶变换的信号特征检测方法在频率域内没有考虑时间分辨率,而基于小波变换的方法对缓变信号特征检测困难等问题,提出了一种基于时频域归一化二次谱的信号特征检测新方法。
3.
Because the region of the sweep signal in time-frequency domain is well-concentrated relative to the widely distributed noise,the wavelet coefficients corresponding to the true signal can be extracted by a masking operation.
针对飞机颤振试飞试验信号噪声过大的问题,提出了一种时频域滤波算法。
5) frequency time domain method
频时域法
1.
Based on the frequency time domain method (FTDM),the moving vehicle axle loads are identified from the measured responses induced by the vehicles crossing a bridge.
利用频时域法由桥梁响应识别桥面移动车载 ,重点比较了伪逆解法和奇异值解法的识别结果 ,并讨论了几个主要参数对识别结果的影响。
补充资料：净域
【净域】
（术语）诸佛之净土也。西方要决曰：“必须远迹娑婆，栖神净域。”
（术语）诸佛之净土也。西方要决曰：“必须远迹娑婆，栖神净域。”
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条