Abstract:

The high frequency multistatic location system which uses an ionospheric oblique backscatter sounding system as its core portion works in an active way to locate over-the-horizon  targets by ionospheric reflection. Combining sky-wave propagation characteristics with Bowring formula which is an inverse solution of the geodetic problem, a location model is advanced to obtain target's coordinates and localization precision under sky-wave condition. Given the single-path propagation mode, geometric dilutions of precision (GDOP) under different station deployments are obtained with the help of computer simulation. The results present that the model is well realizable in engineering with high precision and certain deficiencies of traditional models are conquered.