Abstract
Beidou satellite has been used as external illuminator due to its features such as continuous coverage to our country,less motion relative to the earth,unapparent Doppler frequency,simple disturbance of adjacent channel and high security.Taking account of the location error caused by atmospheric refraction,a location error correction method was given,to further improve the position accuracy.The simulation results show that radar position errors could reduce correspondingly with the increase of elevation or the decrease of target altitude.Passive radar position accuracy is improved greatly by correcting atmospheric refraction.
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