occupied bandwidth meaning in Chinese

占用带宽
占用频带
占有带宽

The theoretical results are evaluated by simulation . if the coherent bandwidth of channel doesn ’ t exceed the occupied bandwidth of two chips , with the increase of delay spread of the channel , mc - ss - cldd exhibits a better performance to make the system resistant to frequency - selective fading
研究结果表明,多载波扩频码片级差分检测在单用户和多用户情况下,均适合于时变频率选择性衰落信道,并具有抵抗频率选择性衰落的能力。