Title :
Evaporation Duct Height Estimation and Source Localization From Field Measurements at an Array of Radio Receivers
Author_Institution :
Inst. of Meteorol., PLA Univ. of Sci. & Tech., Nanjing, China
Abstract :
Remote sensing of the atmospheric refractivity structure using signal strength measurements from a single emitter to an array of radio receivers has been proposed as a promising way for refractivity estimation. As a complement to the pioneers´ published works, this paper focuses on addressing the problem of simultaneously estimating the evaporation duct height and localizing the source´s position. The problem is organized as a multi-parameter optimization issue and genetic algorithm is adopted to search for the optimal solution from various trial parameters. The performance is determined via numerical simulations and mainly evaluated as a function of: (1) the geometry of the receiver array; (2) the transmitting frequency; and (3) the noise in the measurements.
Keywords :
atmospheric electromagnetic wave propagation; ducts; genetic algorithms; height measurement; numerical analysis; radio receivers; refractive index measurement; remote sensing; atmospheric refractivity structure; evaporation duct height estimation; field measurement; genetic algorithm; measurement noise; multiparameter optimization; numerical simulation; optimal solution; radio receiver array geometry; remote sensing; signal strength measurement; source position localization; transmitting frequency; Arrays; Atmospheric measurements; Ducts; Gaussian noise; Mathematical model; Receivers; Refractive index; Antenna array; electromagnetic propagation; evaporation duct; optimization;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2011.2173115