数字图像之类的高带宽信息，则由机器人在接近城市时通过手机信号传送。
Higher bandwidth information, such as digital images, will be transmitted through cell-phone signals when the robot gets closer to population centers.
并将生成信号经低通滤波器处理，从而最终得到了一个能够充分反映电视图像脉冲性、频率、幅度和带宽特点的较为逼真的信号波形。
After the signal is processed through a low-pass filter, a very realistic waveform is obtained which can show pulsed nature, frequency, amplitude and bandwidth of television picture signals.
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