The results indicated that potential scan rate and stepfrequency played an essential role in the initiation and propagation of crack.
结果表明，电位扫描速度和电位阶跃频率对裂纹萌生与扩展有显著影响。
2
To improve the range resolution of Mono-Pulse Train (MPT), the linear stepfrequency signal is introduced and used widely in modern radars.
为了提高脉冲串信号的距离分辨力，曾有文献提出了对子脉冲的载频进行线性递增的方法。
3
This paper studies how to detect the moving targets on the land and sea surface in the background of clutters by using pulse-pulse stepfrequency radar.