Single station location method in NLOS environment: The circle fitting algorithm
نویسندگان
چکیده
منابع مشابه
fault location in power distribution networks using matching algorithm
چکیده رساله/پایان نامه : تاکنون روشهای متعددی در ارتباط با مکان یابی خطا در شبکه انتقال ارائه شده است. استفاده مستقیم از این روشها در شبکه توزیع به دلایلی همچون وجود انشعابهای متعدد، غیر یکنواختی فیدرها (خطوط کابلی، خطوط هوایی، سطح مقطع متفاوت انشعاب ها و تنه اصلی فیدر)، نامتعادلی (عدم جابجا شدگی خطوط، بارهای تکفاز و سه فاز)، ثابت نبودن بار و اندازه گیری مقادیر ولتاژ و جریان فقط در ابتدای...
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In this paper, we study the problem of L1-fitting a circle to a set of points in the plane, where the target function is the sum of distances of the points to the circle. We show an (1 + ε)-approximation algorithm, with running time O(n + poly(log n, 1/ε)), where poly(log n, 1/ε) is a constant degree polynomial in log n and 1/ε. This is the first subquadratic algorithm for this problem.
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Wireless location has received considerable attention over the past few years. Many techniques, such as time-based methods (TOA and TDOA), AOA based methods, and Assisted-GPS, have been proposed. Time-based methods such as TOA and TDOA, are particularly exciting since they are sufficiently accurate for E911 under ideal conditions. However, several error sources, such as NLOS (Non-Line-Of-Sight)...
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ژورنال
عنوان ژورنال: Science China Information Sciences
سال: 2010
ISSN: 1674-733X,1869-1919
DOI: 10.1007/s11432-010-4135-1