1) Multiple frequency detection
多频探测
2) HF Doppler shift sounding
高频多普勒探测
3) Dual Tone Multi Frequency detection [DTMF detection]
双音调多频探测
4) multifrequency exploration
多频勘探
5) spectrum detection
频谱探测
1.
Through the spectrum detection,the spectrum holes of the primary users can be found,thus the secondary users could use them efficiently.
频谱探测是认知无线电中的关键技术之一,通过频谱探测技术来检测授权用户的频谱空洞,以使得非授权用户能够有效利用。
6) surveying frequency
探测频率
1.
For that reason,it should analyze and handle three important parameters of radar work:environmental conductivity,dielectric constant and surveying frequency.
为此,必须分析、掌握雷达工作的三个重要参数:环境电导率、介电常数和探测频率。
补充资料：核爆炸地震波探测(见核爆炸探测)
核爆炸地震波探测(见核爆炸探测)
nuclear explosion seismic detection
hebaozho dizhenbo tanee核爆炸地震波探测(nuclear explos，onseismie detecuon)见核爆炸探汉，l。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条