摘要
在能量有限的网络节点中,利用RSSI测距只需较少的通信开销和较低的实现复杂度。实际应用环境中,由于受不同的传播方向和传播介质的影响,在定位过程中产生的距离误差比较大。在此算法的基础上结合平滑算法,提出了增强型RSSI算法。增强型RSSI算法是将前一个RSSI的值大小与当前的做一个平滑动作,主要降低移动目标的动能波动,从而对室内的人员进行更加精确的跟踪定位,通过与简单的RSSI进行比较,仿真验证了平滑算法的定位的精确性与有效性。
Only less communication overhead and low implementation complexity are needed by RSSI distance measurement in limited energy of the network nodes. However, RSSI is influenced in the different spread directions and spread media in actual application environment, result in generating relative large distance error in the process of positioning, Enhanced RSSI algorithm is presented combined the smooth algorithm based on RSSI algorithm. Enhanced RSSI is to make a smooth moving on the previous RSSI value and current value. By mainly reducing kinetic energy fluctuations of moving target, more precise track localization for indoor personnel is realized. After compared with simple RSSI, the smooth algorithm＇s precision and validity are verified by simulation result.
出处
《传感器与微系统》
CSCD
北大核心
2010年第6期89-91,97,共4页
Transducer and Microsystem Technologies
