对于使用高脉冲重复频率的主动多普勒雷达导引头，连续波近似法不仅计算相对简单，而且可以给出较高的计算精度。

For a Doppler radar homing seeker with high pulse repetition frequency, the continuous wave approximation is not only simple, but also has a high calculation accuracy.

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使用复解析信号法研究了束宽与频率无关的超短脉冲贝塞尔·高斯光束在自由空间的传输特性。

Using a complex analytical signal representation, the free-space propagation properties of ultrashort pulsed Bessel-Gauss beams whose waist width is independent of frequency are studied.

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对五轴联动铣床采用锤击脉冲激励法和变时基采样方法进行实验模态分析，获得机床的各阶固有频率、振型及其相应的振型动画。

The experimental modal analysis of five-axis linkage milling machine is made by using hammer-hitting pulse-inspirit method and change time based sampling method.

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