In vector control, there are the cross-coupling voltages between the M and T components of the stator current for Induction Motor (IM), it affects the performance of speed control system.

Because of the influences of cascade transistor,the traditional common source(CS) cascade low-noise amplifier(LNA) cannot attain excellent low noise and high linearity performances,a couple of cross-coupling capacitors and inductors connected at the gates of the cascode transistors can eliminate the influences of the noise of cascode and improve the linearity of low-noise amplifier in this paper.

The internal error is deal with cross-coupling controller,the external error is eliminated by a expert-fuzzy controller.

Based on the Single Channel Monopulse self-tracking system,this paper analyses the reasons of cross-coupling,and discusses all factors and solutions of the cross-coupling deterioration.

Two models for analyzing both the cross-couplings and their phase relationships and the implementation in cavity-filters by establishing auxiliary signal passages and adding control parts between non-adjacent resonators to both introduce finite transmission zeroes and optimize the performance of filters are proposed.

Comparison of UPFC performance betweencross coupling and decoupling controls;

Stepped Impedance Resonators(SIR) taken as basic resonator unit of coaxial filters,a kind of generalized Chebyshev coaxial-cavity filter through cross coupling is designed.

For having missile of two sets of the same side directions autopilot,there is cross coupling between two control channels.