- 1、Intheantennashaped-beamsection,introducednarrowbeamnullingandwidebeamnulling.2、Thepossiblereasonforthepulsenullingisdiscussed.3、Thegravityismeasuredbynullingthebeam.4、Novelspace-borneshapingantennanullingmethodbasedonmulti-targetdirectionfindin...
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