Then discussing the phase information and Doppler characteristic of target echo wave in the pulse Doppler phase radar.

并且讨论了在脉冲多普勒相参体制雷达下目标回波的相位信息以及目标信号的多普勒谱特性。

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The optical time-domain echo wave length selecting module of the equipment comprises the following parts: an optical switch and an array waveguide raster.

所述设备包括由光开关和阵列波导光栅组合而成的光时域反射波长选择模块。

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The singularities of ground Penetrating Radar (GPR) echo wave signals can show the characters of objects or the layer structures under the ground sufficiently.

雷达回波信号奇异点携带了大量地下目标物的信息，是借以分析地下物质结构的重要依据。

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Science as we know it was consciously created in the 19th century, and in many ways the current wave of data techniques feels like an echo of that first flood of innovations.

FORBES: What the Victorian Age Can Teach Us About Data