The following information was submitted:
Transactions: WSEAS TRANSACTIONS ON SIGNAL PROCESSING
Transactions ID Number: 52-610
Full Name: Wang Xu
Position: Ph.D. Candidate
Age: ON
Sex: Male
Address: 5-2-1,No.88,Anju St.,Wuhou District,Chengdu 610041,Sichuan province
Country: CHINA
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E-mail address: wangxu64@sina.com
Other E-mails: 857792027@qq.com
Title of the Paper: a globally-optimized approach for toa-based range estimation in target motion analysis
Authors as they appear in the Paper: Wang Xu, He zi-shu
Email addresses of all the authors: wangxu64@sina.com,zshe@uestc.edu.cn
Number of paper pages: 12
Abstract: When the time of arrival (TOA) of the periodic signal is used, the range and velocity of the target are observable in target motion analysis. The range and velocity on any position can be estimated for the constant-speed target through using more than three measurements of the TOA. This paper presents a globally-optimized range estimation algorithm on the basis of N+1 TOAs of the periodic signal or quasi-periodic signal along trajectory to improve the range estimation precision of the target on all the N+1 positions. The slot signal of the TDMA system is a kind of quasi-periodic one. For the N+1 positions, the paper firstly derives the closed-form range-velocity least-square solution for the single position (SPLS) and its precision analysis equation, then proposes the all position range-velocity least-square solution (APLS) and its precision analysis algorithm, and finally utilizes the mutual range difference relations among all positions and the results of SPLS a!
nd APLS algorithms to provide the globally-weighted least-square range estimation algorithm (GWLS) and its estimation precision equation. Simulation results validate the following conclusions: the estimation precision of range and velocity on each position in SPLS algorithm is different from each other, and it is related with the range of target to the sensor and the trajectory bevel; the estimation precision of APLS algorithm is better than that of the SPLS algorithm on the most positions, and all the estimation precisions on N+1 positions are roughly equal; GWLS algorithm precision is prominently better than that of SPLS and APLS algorithms, and the estimation precisions on all locations are almost equivalent.
Keywords: Single-station location,Target motion analysis(TMA),Time of arrival(TOA),Weighted Least Square(WLS),Range,Velocity,Estimation,Time division multiple address(TDMA)
EXTENSION of the file: .pdf
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How Did you learn about congress: Target motion analysis(TMA),Single-station location
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