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双线性 [shuāng xiàn xìng]
[数] bilinearity
- 双线性之均时。平面波之能量流。圆形及椭圆形极化。相速度与群速度。色散。
Time Average of Bilinears. Energy Flow in Plane Waves. Circular and Elliptic Polarization. Phase and Group Velocities. Dispersion. - 提出了一种线性连续系统转化为离散系统的简单而实用的方法，给出了与双线性变换的仿真比较。
A simple and useful method for continuation of discrete conversion of timeinvariant linear system is presented, and the comparisons with bi-linear conversion are demostrated. - 通过数字模拟实验与齿轮箱故障信号检测，验证了新的双线性时间-频率分布对复杂信号中瞬时分量的探测效果。
By digital simulation and detection of gearbox fault signal the detection effect of the novel bilinear time-frequency transform is validated for the transient components in complex signal.
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