With prior art direction finder kardioidenfoermiger directional characteristic

• 1. 基于方向函数的非均匀圆阵相位干涉仪测向解模糊方法 [P] . 中国专利： CN109633526B . 2020.09.01
• 2. 基于方向函数的非均匀圆阵相位干涉仪测向解模糊方法 [P] . 中国专利： CN109633526A . 2019-04-16
• 3. hochfrequenzpeiler with kardioidenfoermiger directional characteristic [P] . 德国专利： DE000000902511B . 1954-03-22

  机译： 具有心形指向特性的高频测向仪

• 4. Prior art direction finder for motor vehicles [P] . 德国专利： DE9116931U1 . 1994-11-03

  机译： 用于机动车辆的现有技术的定向仪

• 5. Prior art direction finder [P] . 德国专利： DE2141991A1 . 1973-02-22

  机译： 现有技术的定向仪

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