In this paper, the soundex using laser bean modulated in intensity is advanced to suppress the atmospheric noise.
本文提出了抑制大气噪声的强度调制激光束探测法。
Dynamic modulation of laser and laser bean, and offset to target reflection coefficient: laser bean is shaped and collimated to round and slender beam by using of the semiconductor laser.
激光器件及激光束的动态调制，目标反射系数补偿：采用半导体激光器，经过整形、准直成圆细光束。
Protect effect of He-Ne laser pretreatment on broad bean seedling damage by UV-B radiation.
激光对蚕豆幼苗紫外线- B辐射损伤的防护作用。
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