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你的信号相当弱，信号衰落了。
提出了一种在有固定中继的蜂窝网络中使用信号衰落差值进行移动定位的方案。
This paper proposed a positioning scheme based on differences of signal fading in cellular system with fixed relays.
许多通常的多媒体信号处理，如剪切、滤波、感知编码等，引起了水印信号衰落状的偏倚。
Many common multimedia signal processing, including cropping, filtering, and perceptual coding, make watermark signal fading-like modification.
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