Terahertz wave has unique properties that microwave and infrared radiation do not have. Terahertz wave has unique skills such as high frequency, short wavelength and less transmission loss in smoke, sand and dust. It can see through the wall at a glance and scan the interior of the house. It is an ideal technology for imaging and enemy search in complex battlefield environment. Although terahertz wave is easily affected by various climatic conditions and the transmission distance is limited, in some special cases, this short board has just become another technical expertise of terahertz communication. For example, in case of atmospheric attenuation, terahertz wave signals cannot be transmitted to the enemy's radio monitoring mechanism. Therefore, covert short-range communication can be realized.
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