Some radars generate wideband signals to improve ranging resolution .

一些雷达发射宽带信号以提高距离精度。

This is the day that china unicom will launch china 's first wideband code division multiple access ( wcdma ) 3g network .

这一天，中国联通将推出中国首个宽带码分多址（wcdma）使用3g网络。

Design of wideband circularly polarized slot antennas and arrays .

宽频圆极化槽孔天线及阵列设计。

Signals by subdividing the frequency spectrum used in the wideband channel .

它是通过细分宽带通道上的频谱来实现的。

General torpedo homing signals are usually modulating wideband signals , which have some disadvantages in short-range detection to reduce the accuracy when a torpedo hits target .

传统的鱼雷自导信号多采用调制类宽带信号,但在探测近程目标时，因其探测盲区较大，会降低鱼雷命中目标的准确性。