Share Email Print
cover

Proceedings Paper

Direct position determination for digital modulation signals based on improved particle swarm optimization algorithm
Author(s): Wan-Ting Yu; Hong-yi Yu; Jian-Ping Du; Ding Wang
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

The Direct Position Determination (DPD) algorithm has been demonstrated to achieve a better accuracy with known signal waveforms. However, the signal waveform is difficult to be completely known in the actual positioning process. To solve the problem, we proposed a DPD method for digital modulation signals based on improved particle swarm optimization algorithm. First, a DPD model is established for known modulation signals and a cost function is obtained on symbol estimation. Second, as the optimization of the cost function is a nonlinear integer optimization problem, an improved Particle Swarm Optimization (PSO) algorithm is considered for the optimal symbol search. Simulations are carried out to show the higher position accuracy of the proposed DPD method and the convergence of the fitness function under different inertia weight and population size. On the one hand, the proposed algorithm can take full advantage of the signal feature to improve the positioning accuracy. On the other hand, the improved PSO algorithm can improve the efficiency of symbol search by nearly one hundred times to achieve a global optimal solution.

Paper Details

Date Published: 10 April 2018
PDF: 7 pages
Proc. SPIE 10615, Ninth International Conference on Graphic and Image Processing (ICGIP 2017), 1061554 (10 April 2018); doi: 10.1117/12.2302662
Show Author Affiliations
Wan-Ting Yu, National Digital Switching System Engineering and Technological Research Ctr. (China)
Hong-yi Yu, National Digital Switching System Engineering and Technological Research Ctr. (China)
Jian-Ping Du, National Digital Switching System Engineering and Technological Research Ctr. (China)
Ding Wang, National Digital Switching System Engineering and Technological Research Ctr. (China)


Published in SPIE Proceedings Vol. 10615:
Ninth International Conference on Graphic and Image Processing (ICGIP 2017)
Hui Yu; Junyu Dong, Editor(s)

© SPIE. Terms of Use
Back to Top