Additional noise contributions are due to the statistical fluctuations of the processes in the valves and transistors . 其他噪聲的產生來自電子管和晶體管中電過程的統計起伏。
Tested the volterra series " anti - noise performance . bring out the local projection method to reduce additional noise of chaotic time series in phase space 引入基于相空間的局部投影法對帶噪的混沌時間序列進行了降噪處理,明顯提高了volterra級數模型的抗干擾性能。
Thirdly , the wire size variations , vertical balance , insulation and joint features on adsl lines will affect the insertion loss and introduce additional noise , thus reducing the transmission rate and degrading the transmission performance . fourthly , the bridge tap on the adsl line will greatly change the frequency response and phase - frequency features of the line insertion loss 第三,線對線徑的改變、線路的縱向平衡性、線路的絕緣性能和線路接頭的性能將影響線路的插入損耗、引入附加噪聲,從而降低adsl的傳輸速率,影響adsl的傳輸性能。