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首页> 外文期刊>IEEE Transactions on Aerospace and Electronic Systems >Monopulse-radar angle tracking in noise or noise jamming
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Monopulse-radar angle tracking in noise or noise jamming

机译：噪声或噪声干扰中的单脉冲雷达角度跟踪

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In many monopulse radars, feedback in the angle-tracking servo system is taken to be directly proportional to the monopulse ratio. In those radars, monopulse measurements are conditioned on simultaneous occurrences of receiver sum-channel video exceeding a detection threshold: if a detection fails to occur, the measurement is ignored, and the angle-tracking servo is made to coast. Such conditioning is shown to be necessary in order that the noise power be finite in the servo feedback. The conditional mean value and conditional variance of the monopulse ratio are derived and quantified in terms of threshold level as well as signal-to-noise ratio. The formulation permits the noise covariance between receiver difference and sum channels to be complex rather than only real-valued, so that the sources of noise jamming are not required to be positioned in the receiving-antenna mainlobe and to be copolarized with the antenna response there. Nonfluctuating and Rayleigh-fluctuating target cases are considered and compared, and fluctuation loss is quantified.
机译：在许多单脉冲雷达中，角度跟踪伺服系统中的反馈被认为与单脉冲比率成正比。在那些雷达中，单脉冲测量的条件是同时发生的接收器总和视频超过检测阈值：如果检测失败，则忽略测量，并进行角度跟踪伺服。为了使噪声功率在伺服反馈中是有限的，表明必须进行这种调节。根据阈值水平以及信噪比，得出并量化了单脉冲比率的条件平均值和条件方差。该公式允许接收器差和总和通道之间的噪声协方差很复杂，而不仅仅是实数值，因此不需要将噪声干扰源放置在接收天线主瓣中并与天线响应共极化。考虑并比较非波动和瑞利波动的目标案例，并对波动损失进行量化。

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