高分辨率IFMs

14th International Conference on Microwaves, Radar and Wireless Communications. MIKON - 2002. Conference Proceedings (IEEE Cat.No.02EX562) Pub Date : 2002-08-07 DOI:10.1109/MIKON.2002.1017893

J. Coupez, H. Gruchala, A. Slowik, C. Rećko, A. Rutkowski

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引用次数: 23

摘要

本文介绍了三种类型的瞬时频率测量系统。传统的IFM由定向耦合器和功率分配器组成，通过应用移相器对其进行了改进。本文还描述了另外两种ifm。在一个IFM中使用二极管环，而在另一个IFM中只使用功率分压器。详细介绍了输出信号转换技术。这些ifm的频率分辨率均优于1mhz，并进行了实际测试。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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High resolution IFMs

In this paper, three type of IFM (instantaneous frequency measurement) systems are presented. Classical IFM, consisting of directional couplers and power dividers, has been modified by applying phase shifters. Two other IFMs are also described. A diode ring was used in one IFM and only power dividers in another. Output signal conversion techniques are detailed. These IFMs, which can reach a frequency resolution better than 1 MHz, were examined practically.

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14th International Conference on Microwaves, Radar and Wireless Communications. MIKON - 2002. Conference Proceedings (IEEE Cat.No.02EX562)

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