Based on the spectralset of skew-symmetric matrix, the result that a class sign pattern matrix with zero diagonal is unique inertia was proved by using orthogonal similarity transformation.
本文基于反对称矩阵的谱集，采用正交相似变换，得到一类具有零对角的符号模式矩阵具有唯一惯量的结论。
2
A set of circuits for detecting ophthalmic blood flow Doppler signals was developed and spectral analysis was realized as well.
研制以超声波为载体的电路系统，探测眼部血流多普勒信号，并进行频谱分析。
3
A propagation model for spectral beam combining is set up in this paper.