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词汇 Space modulation
分类 英语词汇 英语翻译词典
释义

Space modulation

英语百科

Space modulation

Space modulation is a radio amplitude modulation technique used in instrument landing systems that incorporates the use of multiple antennas fed with various radio frequency powers and phases to create different depths of modulation within various volumes of three-dimensional airspace. This modulation method differs from internal modulation methods inside most other radio transmitters in that the phases and powers of the two individual signals mix within airspace, rather than in a modulator.

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