Design and realization of ppi signal raster scan radar display system 光柵掃描顯示系統(tǒng)設(shè)計(jì)與實(shí)現(xiàn)
Raster scan display 水平掃瞄屏幕
Conveyor speeds up to 0 . 5 meters sec 100 feet minute tech 7 and tech 8 have either onmidirectional or raster scanning pattern Tech 7和tech 8有全向或多線平行兩種掃描模式可供選擇
By use of this technique , we fabricated scaffold - like micro - well structures with sub - micron resolution and high aspect ratio by both raster scanning and pinpoint scanning methods 與其它微加工技術(shù)比較,使用此方法除可制作復(fù)雜的三維微結(jié)構(gòu)外,同時(shí)它又具有免用光罩、制作步驟簡(jiǎn)單、真正三維的立體結(jié)構(gòu)及高解析度之優(yōu)點(diǎn)。
In packet based wireless video communications , when best band distribution , not only source distortion should be considered , but also channel distortion caused by channel errors . the existing macroblock - layer rate control schemes calculates quantization parameters of all macroblocks ( mb ) in a frame in a raster scan order , and then encodes the mbs in the same order . actually , the quantization distortion is heavily dependent upon the coding order of mbs 在基于包的無(wú)線視頻傳輸中,最佳帶寬分配時(shí),不僅要考慮信源編碼失真,也要考慮由于信道差錯(cuò)引起的信道失真;已有的宏塊層碼率控制算法以矩陣掃描的順序計(jì)算一幀中所有宏塊的量化參數(shù),事實(shí)上量化失真與宏塊的編碼順序有很大關(guān)系,改變宏塊的編碼順序,使復(fù)雜的宏塊分配到更多的比特?cái)?shù),顯然能大大提高編碼效率。