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2. 发明授权

US06229483B1 Method and device relating to self-calibration of group antenna system having time varying transmission characteristics 失效
标题翻译：与具有时变传输特性的组天线系统的自校准有关的方法和装置
公开(公告)号：US06229483B1
公开(公告)日：2001-05-08
申请号：US09123423
申请日：1998-07-28
申请人： Lars Robert Looström
发明人： Lars Robert Looström
IPC分类号： G01S316
CPC分类号： H01Q3/267
摘要： The present invention concerns calibration of a group antenna system (11) with a number of radiation elements (X1, . . . , XN) and a number of controllable transmitters (T1, . . . , TN), in which the transmitters at the reception of an input signal transmit output signals for feeding the radiation elements. The calibration is done to be able to obtain a time varying antenna diagram at transmission and should be able to perform under operation without interrupting the normal operation of the group antenna system (11). The group antenna system comprises a control system for automatically correcting the control of the transmitters (T1, . . . , TN) for error deviations thereof. The group antenna system (11) comprises means (37) for generating a sum signal corresponding to the sum of the output signals. The control system generates error signals, giving information about the error deviations, employing the sum signal, the input signal and the complex amplifications varying with time for the transmitters. The control of the transmitters (T1, . . . , TN) is continuously corrected employing the error signals.
摘要翻译：本发明涉及具有多个辐射元件（X1，...，XN）和多个可控发射器（T1，...，TN）的组天线系统（11）的校准，其中发射机接收输入信号发送用于馈送辐射元件的输出信号。进行校准以便能够在传输时获得时变天线图，并且应该能够在不中断组天线系统（11）的正常操作的情况下执行。组天线系统包括用于自动校正发射机（T1，...，TN）的误差偏差的控制的控制系统。组天线系统（11）包括用于产生对应于输出信号之和的和信号的装置（37）。控制系统产生误差信号，给出关于误差偏差的信息，采用和信号，输入信号和发射机随时间变化的复数放大。使用误差信号连续校正发射机（T1，...，TN）的控制。

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