Based on the mechanism of radio propagation, this paper builds an RFID signal loss model and calculates a safe working distance at which readers could operate simultaneously.

根据无线电波的传输机制建立起RFID系统信号损失模型，并推导出多读写器能够同时工作的安全距离。

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This thesis adopts empirical path loss model based on numerous measurements to obtain the mapping between signal strength and geometric path.

论文采用了基于大量测量值的经验损耗模型作为信号强度和几何路径之间的映射关系。

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Yamaha designed the model with left-right symmetrical audio circuitry to provide the shortest circuit path for audio signal travel without loss of audio signal purity.

ENGADGET: Yamaha's CD-N500 network CD player comes to the States, priced at $800