Strong coupling is in existence between pitch and yaw channel of the bank-to-turn (BTT) missile, it makes that autopilot three-channel independent design method according to clasical control theory involves certain difficulties.

• 倾斜转弯（BTT）导弹的俯仰与偏航通道之间存在着强烈耦合，使得根据经典控制理论的自动驾驶仪三通道独立设计方法遇到一定困难。