In this paper, the soundex using laserbean 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。
2
Dynamic modulation of laser and laserbean, and offset to target reflection coefficient: laserbean 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。
3
Protect effect of He-Ne laser pretreatment on broad bean seedling damage by UV-B radiation.