宽带毫米波通信系统中载波之间的相互波动

11th International Conference 'Microwave and Telecommunication Technology'. Conference Proceedings (IEEE Cat. No.01EX487) Pub Date : 2001-09-10 DOI:10.1109/CRMICO.2001.961552

T. Wong, Ming Yan

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引用次数: 0

摘要

宽带毫米波通信系统中两个载波之间的相互波动可以从载波的外差信号频谱中观察到。在为本地多点分配系统(LMDS)应用开发的设备上进行的实验室测量表明，外差频谱的退化主要以背景噪声增加的形式出现，而L(f)接近热音载波基本上不受影响。因此，毫米波链路很好地保持了载波之间的同步和正交关系。这一特性是支持高频谱效率调制方案的关键要求。

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Mutual fluctuations between carriers in a broadband millimeter-wave communication system

Mutual fluctuations between two carriers in a broadband millimeter-wave communication system may be observed from the heterodyne signal spectrum of the carriers. Laboratory measurements made on equipment developed for local multipoint distribution system (LMDS) applications indicated the degradation in the heterodyne spectrum was mainly in the form of increased background noise with L(f) close to the beat-tone carrier essentially unaffected. Synchronization and orthogonal relationship between the carriers are therefore well preserved by the millimeter-wave link. This property is a key requirement for supporting modulation schemes with high spectral efficiency.

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11th International Conference 'Microwave and Telecommunication Technology'. Conference Proceedings (IEEE Cat. No.01EX487)

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