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  張九才，楊顯志1，王文祥1，孫嘉鴻 （1.電子科技大學物理電子學院，四川 成都 610054；2.中北大學自動化系，山西 太原 030051）   摘要：頻率是微波儀器的重要參數，微波頻率測量是檢測儀器是否正常運行的有效手段，而提高頻率測量精度是微波頻率測量可靠性的保證。本文概述了微波頻率測量的基本原理，分析了提高微波頻率測量精度的幾種方法，表明模擬內插法和游標內插法在提高微波頻率測量精度中具有更為明顯的優勢。   關鍵詞：微波頻率測量；提高精度；方法   中圖分類號：TM935.1 文獻標識碼：A 文章編號：1672-4984(2006)02-0001-04   Methods for improving precision of microwave frequency measurement   ZHANG Jiu-cai1，2，YANG Xian-zhi1，WANG Wen-xiang1,SUN Jia-hong1 (1.School of Physical Electronics,University of Electronic Science and Technology,Chengdu 610054,China;2.Department of Automatic Control,North University of China, Taiyuan 030051,China)   Abstract: Frequency is an important parameter of microwave instrument and microwave frequency measurement is an effective approach to examine the normal operation of microwave instrumentSo improving precision of microwave frequency measurement guarantees the reliability of microwave frequency measurement. In this paper, the fundamental theory of microwave frequency measurement was summarized.The methods for improving the accuracy of microwave frequency measurement were analyzed.It shows that analoginterpolating and the cursor interpolating methods have prominent advantages in improving precision of microwave frequency measurement.   Key words：Microwave frequency measurement; Improving precision; Methods