To realize single-station passive location to sea surface ship target by photoelectric reconnaissance equipment,the method of high-precision and near-real-time photoelectric single-station passive location to sea surface target was proposed.The equations of single-station passive location were constructed,the location errors were analyzed,the factors affecting the location errors were explored,and the application suggestions of single-station passive location were given.Simulation results show that the location error is about 1.672%R at range of 17.899 km,with once location time about 20 ms.The errors of location,latitude,longitude and altitude are separately subject to normal distribution with N(299.31 m,197.39 m),N(4.944×10-5°,2.665×10-3°),N(4.038×10-5°,1.899×10-3°)and N(-0.485 m,14.165 m).The errors of pitch,azimuth and target altitude have a great influence on the location accuracy.The location results are reliable when pitch is in the domain of[-120°,-15°],and the location error is smaller than 800 m when target altitude error is in the domain of[-200 m,200 m],which realizes the high-precision and near-real-time single-station passive location to sea surface target.The proposed method is suitable for single-station passive location of sea surface,ground and air targets with reference plane of target altitude.
维普
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