本文讨论了存在未知扰动情况下如何设计双线性多变量系统的观测器问题。

The problem of designing an observer for bilinear multivariable systems in the presence of unknown disturbances is considered.

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使用坐标变换，将双线性系统中的倍增控制项和叠加控制项重新组合成与线性系统有相同形式的非线性系统。

The nonlinear system as linear system in form is composed of multiplicative control and additive control items in bilinear system using coordinate transformations.

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根据MOV归约理论，采用双线性映射构造的基于身份加密方案使得该方案不具有椭圆曲线高效的优点。

According to the MOV reduction theory, the identity-based encryption scheme which is based on the bilinear map will lose the high efficiency of elliptic curve.

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