定位技術廣泛應用於諸如車輛導航、家庭看護與人員追蹤等民生用途，故近年來發展出許多應用於室內之無線感測網路定位系統。本論文旨在利用ZigBee模組低成本與低耗電特性來形成一無線感測網路，藉由自行撰寫之伺服軟體，以規劃室內環境之定位區域、定位用固定節點座標及其相關參數設定，透過解算移動與固定節點間之訊號連結品質量測量，以發展並驗證即時定位演算法。此外，將針對網路通訊技術、訊號衰減模型、定位法則、以及系統發展平台作探討，進而實現人員即時追蹤之研究，使其可應用於室內環境之人員監控與追蹤。

Location techniques are essential for numerous applications such as vehicle navigation, home care, personnel tracking, and so forth. Several wireless sensor networks in indoor positioning systems have been developed in recent years. In the thesis, ZigBee modules are adopted to form a wireless sensor network for the development and verification of localization and tracking algorithms. The use of ZigBee modules is known to be of low cost and low power consumption. Moreover, during the communication between each ZigBee-based sensor node, a link quality indication（LQI）can be used to serve as a means of range measurement. The thesis attempts to develop localization algorithm and personal tracking system so that a person in an indoor environment can be monitored and tracked.

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