The narrow-bandsystem used for on-line partial discharge monitoring has been developed in this paper.
论述了局部放电在线窄带检测系统。
2
On account of the wide relative bandwidth, compared with the narrow-bandsystem, large-band SAR system errors impose more severe effect on imaging quality.
由于相对带宽很大，与窄带系统相比，宽带SAR系统误差对成像的影响更严重。
3
In the highly crowded HF band, available continuous bandwidth is very narrow, this threaten the viability of HF radar based on the continuous spectra signal system seriously.