大脑最基本的形式是一簇神经元细胞，它与其他器官通过极其微弱的电脉冲信号发生联系。
In its most basic form, the brain is a cluster of nerve cells, capable of communicating with each other using tiny pulses of electricity.
仿真与实际测试结果表明，该方法能有效提取远距离微弱激光脉冲回波信号，从而提高系统信噪比，扩大了系统原有的测程。
Simulation and actual test result shows that the new arithmetic could detect weak laser pulse signal effectively, increase the SNR and expand measuring range of laser range finder.
但由于这一信息非常微弱，且脉冲信号的持续时间很短，多普勒变化率的精确测量也十分困难。
While the information is quite difficult to estimate since it is very subtle and the pulse duration is very short.
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