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    • 35. 发明授权
    • Method for determining the frequency of a signal
    • 用于确定信号频率的方法
    • US06351505B1
    • 2002-02-26
    • US09170200
    • 1998-10-13
    • Franz HerrmannManfred Schuster
    • Franz HerrmannManfred Schuster
    • H04B110
    • G01R23/02G01R23/167
    • A method for determining a frequency of a signal includes transforming the analog signal to the complex frequency range through a digital filtering, preferably a FFT, so that result vectors with amplitude and phase components are generated in the frequency range. As a result, a continuous sequence of transformation intervals (FFT intervals) develops within a measuring interval that can be predetermined. Subsequently, pairs of result vectors, which belong to the same predetermined frequency, are selected from predetermined transformation intervals (FFT intervals). Associated phase differences are then formed from which a weighted phase difference is determined. The weighted phase difference is used to correct the signal frequency determined from the amplitude spectrum. This method permits very accurate frequency measuring, especially for pulsed HF signals.
    • 用于确定信号频率的方法包括通过数字滤波(优选FFT)将模拟信号变换到复频率范围,使得在频率范围内产生具有幅度和相位分量的结果矢量。 结果,在可以预定的测量间隔内产生连续的变换间隔序列(FFT间隔)。 随后,从预定的变换间隔(FFT间隔)中选择属于相同预定频率的结果向量对。 然后形成相关的相位差,由此确定加权相位差。 加权相位差用于校正从振幅谱确定的信号频率。 该方法允许非常精确的频率测量,特别是脉冲HF信号。
    • 37. 发明授权
    • Method for orienting a radar installation against a target
    • 将雷达装置对准目标的方法
    • US4973964A
    • 1990-11-27
    • US469289
    • 1990-01-24
    • Manfred Schuster
    • Manfred Schuster
    • G01S7/40G01S13/68
    • G01S13/68G01S2007/4086G01S7/4026
    • A method for orienting a radar installation which possesses an at least approximatingly axial-symmetrical antenna radiation or beam characteristic towards a target. The radar beam which is emitted by the radar installation is reflected or scattered back at the target and the backscattered radar beam is evaluated or plotted in a measurement evaluating device of the radar installation for purposes of determining or identifying the target. Employed is a target with three target elements which are arranged in the corners of an at least approximately equilateral triangle, the centerpoint of which corresponds to the desired target point, in which there is effected a separating of the three radar signals which are reflected or scattered back by the three target elements, and that from the values of the amplitudes of the three backscattered radar signals, through the utilization of the measurement evaluating circuit, there is determined the position of the target point which is located between the target elements.
    • 一种用于定向雷达装置的方法,其具有至少近似于轴对称的天线辐射或射束特性朝向目标。 由雷达装置发射的雷达波束被反射或散射回目标,并且背光散射的雷达波束被评估或绘制在雷达装置的测量评估装置中以便确定或识别目标。 使用的是具有三个目标元素的目标,其被布置在至少近似等边三角形的角落中,其中心点对应于期望的目标点,其中实现了被反射或分散的三个雷达信号的分离 通过三个目标元件返回,并且从三个背向散射雷达信号的振幅的值通过使用测量评估电路,确定位于目标元件之间的目标点的位置。