Fixed radar transponders were heavily used in navigation along coastlines.
2
随着通信领域的频率竞争愈演愈烈，惯用的定频通信受到了严重威胁。
With the drastic frequency competition of communication, the usual communications with fixed frequency suffer from a serious threat.
3
提出了一种基于优化电压矢量的有源滤波器定频滞环电流控制新方法。
In this paper a novel hysteresis current control method based on quasi optimized space voltage vectors for Active Power Filters (APF) with constant switching frequency is proposed.
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