【电】 方向余弦

将分解后子带作为特征编码，利用空间向量的方向夹角余弦作为匹配方法，有效克服了缩放、平移、光照等影响，达到了较好的识别效果。

beacons, which emit radiation, locating, direction-finder

direction non-equilibrium factor of passenger flow【交】

signal transmission of LF- in one and HF-signals in the other direction

controlling for stock travelling otherwise than in the direction of the material

reversal of rotational direction (reversal of rotation)

proximodistal direction of development

automatic direction finder

method by series【测】;method of direction observation【测】