The paper is mainly about one kind of communication antenna based on civilian vehicles,which can meet the requirement of satellite navigation,communication.
Based on PANDA software,GPS and Beidou observation data of four Beidou continuous operation tracking network (iGMAS / BETS / CMONOC / MGEX) are calculated i
Six X-ray pulsars (PSR J0218+4232,PSR J0437-4715,PSR B0531-21,PSR J1939+2134,PSR J1024-0719 and PSR J0751+1807) are selected for the mission of deep-space a
Facing the increasingly complex electromagnetic environment,it is an attempt to introduce DS/FH hybrid spread spectrum technology to the field of TT&C.For D
With the urgent need for indoor and outdoor seamless navigation service,it is imperative to develop high precise positing technique suitable for various sce