采用动态窗口宽度和二次平均算法的SSOA定位方法

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Abstract The estimation of local mean signal strength is the core of SSOA (Signal Strength Of Arrival) location. The primary source of error is fast fading and shadowing (slow fading). Signal strength averaging is an important approach to estimate the local mean. This paper suggests a double-averaging algorithm with dynamic widow-width to improve the estimation and thus enhances the location accuracy. The results of computer simulation proved that the methods improve location accuracy by 30% than traditional methods in fading channel. And, with the aid of dynamic window-width, sufficient location accuracy can be obtained while mobile station is in low mobility.

Key words： Cellular location Signal strength of arrival. Local mean estimation

Received: 20 February 2000

PACS:

TN929.5

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	Zhu Liangxue
	Zhu Jinkang

Cite this article:

Zhu Liangxue,Zhu Jinkang. Signal-Strength-of-arrival location using dynamic window-width and double-averaging algorithm[J]. , 2002, 24(1): 60-67 .

URL:

http://jeit.ie.ac.cn/EN/ OR http://jeit.ie.ac.cn/EN/Y2002/V24/I1/60