SFA : State Forestry Administration 国家林业局 SFA : Single Frequency Approach 单一频率的方法 SFA : Stuttering Foundation of America 美国的口吃基金会 ..
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针对群智能机器人系统的特点，提出了一种基于单一频率信号的声音协作定向方法。
A collaborative direction estimation method based on single frequency sound is proposed for swarm-based robotic systems.
该方法综合了现有方案的长处，可避免单一参数(频率差、相角差或电压差)不满足就闭锁快切的弊端。
It integrates advantages of present schemes and avoids the unreasonable blocking for single unqualified parameter, such as the frequency difference, the phase difference or the voltage difference.
常规放电状态检测方法由于仅采用单一的特征量进行状态判别，因此在加工信号频率高、加工波形产生畸变的微细电火花加工中，不再适用。
Conventional discharge condition detection methods extracting only certain eigenvalue are not suitable for the Micro-EDM due to the high frequency and distortion of voltage wave shape.
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