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spreading factor 擴散素〔如透明質酸酶〕。

spreadsheet program

Thereafter , the applications of go sequences in single - cell s - cdma systems are discussed in this thesis . in additive white gaussion noise ( awgn ) channel , interference components in s - cdma systems accommodating more users than the spreading factor is analyzed based on the theoretical bound of the periodic correlation mean square property . then two interference - suppressed s - cdma system models of augmented capacity are proposed , along with the analysis and simulation results 在加性白高斯噪聲( awgn )信道條件下,以序列集周期相關均方特性理論界為基礎,對序列個數大于系統擴頻因子的s - cdma系統干擾組成進行了分析,并基于截短wh序列提出了兩種高容量低干擾s - cdma系統模型,給出了分析和仿真結果。

In order to support multi - rate transmission in ds - cdma , many cdma techniques such as multi - code ( mc ) scheme , orthogonal variable spreading factor ( ovsf ) and variable modulation have been used 在ds - cdma系統中多速率傳輸的方法有很多種,例如多碼方案( mc - cdma ) ,正交可變擴頻增益方案( ovsf )和多調制方案等。

Firstly , how to choose spreading factor of non - coherent dcsk system that minimizes the bit error rate for a given eb / n 0 is discussed in this paper 文中首先討論了非相干dcsk系統在給定eb / n0下,如何選擇擴頻系數使其誤碼率最低問題。

In the up link of wcdma the spread factor ranges from 4 - 256 and ranges from 4 - 512 in the down link of wcdma 上行鏈路中擴頻因子變化范圍為4 - 256 。下行鏈路中,擴頻因子的變化范圍是4 - 512 。