Firstly, the obtained radar signal radio frequency, pulse width, repeat frequency are composed to get a combined probability assignment function of radar parameters by applying D-S method.

首先，对侦察雷达所能探测到的目标雷达信号的载频、脉宽、重频，应用证据理论将其组合，得到雷达参数的联合概率分配函数。

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The detection probability calculating method about low pulse repetition frequency(LPRF) PD radar against air vehicle is studied.

提出了低脉冲重复频率（LPRF）PD雷达探测飞行器目标的发现概率计算方法。

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The frequency response of the transducers is measured experimentally using laser ultrasound and a pulse echo reflecting method. The spectral analysis results are compared and analyzed.

由激光超声方法和自发自收脉冲反射法实验测定了所制作的换能器的频率响应，并比较了频谱分析结果。

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