数字式测角器及其在低纬哨声定向中的应用

数字式测角器及其在低纬哨声定向中的应用 DIGITAL GONIOMETER AND ITS APPLICATION IN DIRECTION FINDING ON LOW-LATITUDE WHISTLERS 田茂 Tian Mao Xu Jisheng 1 first-author 徐继生 1 武汉大学空间物理系 武汉大学空间物理系 Department of Space Physics,Wuhan University Department of Space Physics,Wuhan University 本文介绍了武汉大学哨声组研制的数字式测角器及其在低纬哨声定向中的应用。由于采用了数字化技术和分频段调制分析方法,这种测角器有效地解决了传统模拟式测角器在应用于低纬哨声定向分析时精度难以保证的问题,并实现了宽带定向。该数字式测角器已在对1988年元月哨声定向观测数据的分析中付诸实用,取得了比较满意的结果。 The digital goniometer developed by whistler group of Wuhan University and its application in direction finding on low-latitude whistlers are presented in this paper.Because of the adoption of digital technique and the method of modulation analysis on every subfrequency band,this kind of goniometer effectively overcomes the difficulties of traditional analog goniometer with which we can not get the high accuracy in direction finding analysis on low-latitude whistlers,and realizes the wide band direction finding.This goniometer was used to analyse the direction finding data of whistlers observed in January 1988,and satisfying results were obtained. 数字式测角器 低纬哨声 定向探测 digital goniometer low-latitude whistler direction finding 围家自然科学基金资助的课题 1990-02-01 2021-04-01 2