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本文叙述用来测量Ku波段脉冲多普勒雷达的连续波信号和脉冲连续波信号的幅度噪声和相位噪声的一种新的测试方法。这些噪声测量是在模拟雷达工作环境中进行的,因此,测试结果可以直接给出信息,以确定雷达杂波下可见度。与常规的噪声测试方法相比较,这种新方法不仅给出更加有意义的结果,而且可以很快地获得测试结果。本文通过方块图和理论分析来叙述实际的测试系统设计,同时也叙述了测定发射机信号中近似频率抖动的方法。
This paper describes a new test method for measuring the amplitude and phase noise of continuous wave and pulse continuous wave signals in Ku-band pulsed Doppler radar. These noise measurements are made in a simulated radar environment, so the test results give information directly to determine visibility under radar clutter. Compared with the conventional noise testing method, this new method not only gives more meaningful results, but also can quickly obtain the test results. This article describes the actual test system design using block diagrams and theoretical analysis, as well as a method to determine approximate frequency jitter in a transmitter signal.