三縱條信號(hào)發(fā)生器(three vertical bar signal)

三縱條信號(hào)發(fā)生器

三縱條信號(hào)”（three vertical bar signal）定義為在黑色背景下產(chǎn)生三個(gè)等距的垂直條，每個(gè)垂直條的寬度為圖像寬度的1/6。這個(gè)輸入信號(hào)為50%的APL（Average picture level），并且包含參考白電平?！叭v條信號(hào)”圖形如下：

三縱條信號(hào)發(fā)生器

標(biāo)簽: 三縱條信號(hào)發(fā)生器

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