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首页> 外文期刊>Electrical Engineers - Part IIIA: Radiocommunication, Journal of the Institution of >The development of single-receiver automatic adcock direction-finders for use in the frequency band 100????????150 Mc/s
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The development of single-receiver automatic adcock direction-finders for use in the frequency band 100????????150 Mc/s

机译：用于100 ???????? 150 Mc / s频段的单接收机自动Adcock测向仪的开发

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摘要

The paper describes the development of automatic direction-finders primarily intended for measuring the bearings of aircraft, on signals radiated in the frequency band 100????????150 Mc/s. The basic system employs fixed elevated-H Adcock antennas and a single receiver, and, with the exception of the earliest model, all instruments give cathoderay oscillograph indication. An examination of the advantages and limitations of fixed*antenna automatic direction-finders employing two or more receivers leads to an account of the reasons for the adoption of a single-receiver system in the present development. The principles and evolution of this system are explained with reference to the original experimental models, whose performance is discussed. A naval direction-finder based on one of the experimental models is described in detail, and statistics are presented to show that the probable instrumental error varies from about 0.6????????1.25 deg over the frequency band, after compensation for octantal error. Bearings can be measured on signals of field strength down to 7 ????????V/m or less. The paper concludes with a description of direction-finders for use on land. One of these, under current development, will be capable of unattended operation on two alternative frequency-channels, with bearing indication and full remote-control at points up to twenty miles distant.
机译：本文描述了自动测向仪的发展，该仪主要用于测量飞机轴承的辐射，该辐射是在100 Mc？s 150 Mc / s频带上发射的信号。基本系统使用固定的高架H Adcock天线和单个接收器，并且除最早的型号外，所有仪器均提供阴极射线示波器指示。对采用两个或多个接收机的固定天线自动测向仪的优点和局限性的研究导致了在当前开发中采用单接收机系统的原因的说明。参照原始实验模型解释了该系统的原理和发展，并讨论了其性能。详细描述了基于其中一种实验模型的海军测向仪，并提供了统计数据以表明在补偿了噪声之后，可能的仪器误差在整个频带范围内约为0.6至1.25度。八进制错误。可以在磁场强度低至7Ω·V / m或更小的信号上测量轴承。本文最后介绍了用于陆地的测向仪。在当前的发展中，其中之一将能够在两个可选的频率信道上进行无人值守的操作，在距离最远二十英里的地方具有方位指示和全面的远程控制。

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