spread of the variable 中文意思是什麼

spread of the variable 解釋
變數的離差
  • spread : vt (spread)1 伸開,伸長(手臂等),展開,張開(帆等),打開(地圖等);鋪開(氈子等),展寬,展...
  • of : OF =Old French 古法語。
  • the : 〈代表用法〉…那樣的東西,…那種東西。1 〈用單數普通名詞代表它的一類時(所謂代表的單數)〉 (a) 〈...
  • variable : adj 1 易變的,變化無常的,無定的 (opp constant steady)。2 可變的,能變的;變換的。3 【數學】變...
  1. The mobile multimedia communication system need to support the transmission of high - speed data and variable speed data compared with the ordinary spread spectrum communication. the data rate ranges from several kbps to hundred kbps for wide up to 2mbps. in order to assure different data rate to transmission in the same spread spectrum bandwidth, we need to use different lengths and orthogonal pn codes

    傳統移動通信系統所提供的數據速率一般只有幾kbps ,而移動多媒體通信所要求的數據速率范圍為幾mbps甚至幾十mbps ,在同一擴頻系統內傳輸多媒體的擴頻比也不一樣,就要採用不同長度的偽碼,而且偽碼之間必須保證正交性或準正交性。
  2. In this dissertation, researches on performance of variable spreading gain cdma with imperfect power control and uplink capacity analysis of limited maximal ratio combining macrodiversity in spread spectrum radio networks are carried out. the main originality in this paper can be summarized as below. 1

    本文主要內容涉及基礎研究和應用研究,其中包括: ( 1 )進行了關于可變增益cdma ( vsg - cdma )在非理想功率控制下的性能分析; ( 2 )進行了關于宏分集無線網路cdma系統的功率控制和容量分析。
  3. For the special case one of original equations contains only two unknowns, these two variables can be sampled firstly, and then introduced into the other two 3 - variable equations. the real solutions obtained are spread along the cylindrical contour curve, so that a two dimensional graph which is easy to observe is generated. the corresponding spatial points of intersection are found through the points of intersection of the two curves in this graph

    對于方程組中有一個二元方程的特殊情況,還可首先給該二元賦值,然後代入另外兩個三元方程,將求得的實數解沿該二元方程的柱面輪廓線展開,得到便於觀察的二維圖形,通過該兩條交線的交點找到其相應的空間交點。
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