求翻译：基于RSSI测距的定位技术有两种定位模型：经验模型与理论模型。基于经验模型的RSSI的定位算法需要建立离线数据库，由于数据库的建立需要大量的测试工作，因此数据库一旦建立，不会频繁更新。环境因素或者其他因素可能会造成RSSI值的变动，进而影响定位精度。而基于理论模型的定位算法的精度受环境影响较大。是什么意思？

Positioning technology based on rssi ranging two location model: empirical models and theoretical models. The rssi the localization algorithm model based on experience need to create the offline database, database creation requires a lot of testing, database, once established, will not be updated fr

Based on the distance measuring RSSI positioning technology has two positioning model: empirical model and theoretical models. Experience-based model of the positioning algorithm RSSI need for off-line database, because the establishment of the database needs to be a lot of testing, the database onc

Has two kind of localization models based on the RSSI range finder localization technology: Experience model and theoretical model.Needs to establish the off-line database based on the experience model RSSI localization algorithm, because the database establishment needs the massive test work, once

Positioning technology based on RSSI location there are two localization models: empirical models and theoretical models. RSSI localization algorithm based on empirical model need to establish offline databases, due to building work requires a lot of testing of the database, so the database once it

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