无线电工程
無線電工程
무선전공정
RADIO ENGINEERING OF CHINA
2012年
2期
42-45
,共4页
数字多波束天线%立体方向图%波束补偿%相位中心
數字多波束天線%立體方嚮圖%波束補償%相位中心
수자다파속천선%입체방향도%파속보상%상위중심
digital multi-beam antenna%3D pattern%beam compensation%phase center
针对数字多波束天线所特有的多波束性能测试和精密测距性能校准的需求,结合数字多波束天线的工作原理,分析比较了基于远场和近场的2种校准和测试方法,提出了数字多波束天线波束指向、波束电平和相位中心的修正方法,并结合实际系统完成了试验验证。试验结果表明：该测试和校准方法可高效率完成数字多波束天线系统的校准和测试工作,提高系统的测量精度,具有很强的实用价值。
針對數字多波束天線所特有的多波束性能測試和精密測距性能校準的需求,結閤數字多波束天線的工作原理,分析比較瞭基于遠場和近場的2種校準和測試方法,提齣瞭數字多波束天線波束指嚮、波束電平和相位中心的脩正方法,併結閤實際繫統完成瞭試驗驗證。試驗結果錶明：該測試和校準方法可高效率完成數字多波束天線繫統的校準和測試工作,提高繫統的測量精度,具有很彊的實用價值。
침대수자다파속천선소특유적다파속성능측시화정밀측거성능교준적수구,결합수자다파속천선적공작원리,분석비교료기우원장화근장적2충교준화측시방법,제출료수자다파속천선파속지향、파속전평화상위중심적수정방법,병결합실제계통완성료시험험증。시험결과표명：해측시화교준방법가고효솔완성수자다파속천선계통적교준화측시공작,제고계통적측량정도,구유흔강적실용개치。
Based on the special requirements of multi-beam performance test and high-precise ranging performance calibration for the digital multi-beam antenna and its operation principle,this paper analyzes two calibration and test methods respectively based on far-field and near-field.The correction methods for beam directivity,level and phase center of the digital multi-beam antenna are proposed,and the test demonstration is performed with practical system.The result shows that the method can effectively implement calibration and test for digital multi-beam antenna system and improve the measurement accuracy,and has higher practical value.
