CAJ | 학술논문

为了保证测量精度，研究了地基微波干涉测量雷达（ ground-based radar，GB-radar）静态微变形监测时受到的环境影响的有效改正方法，采用GB-radar和游标卡尺对特制的角反射器产生的模拟变形同步观测．在稳定环境下，对比试验表明GB-radar静态测量精度优于0．1 mm．野外环境下监测结果表明，径向距离60 m时，数小时内静态观测所受到的环境影响可达0．5 mm，必须仔细进行处理．采用两种方法对环境影响进行改正，一种是将测定到的大气参数代入微波大气传播改正公式中，以获得改正量；另一种是通过观测视场中稳定目标物所受环境影响量，换算出变形体的改正量．结果表明，两种方法均可有效改正环境影响，改正后的变形值测量精度在0．15 mm左右，对两种环境改正方法的优缺点和影响因素进行了分析．
위료보증측량정도，연구료지기미파간섭측량뢰체（ ground-based radar，GB-radar）정태미변형감측시수도적배경영향적유효개정방법，채용GB-radar화유표잡척대특제적각반사기산생적모의변형동보관측．재은정배경하，대비시험표명GB-radar정태측량정도우우0．1 mm．야외배경하감측결과표명，경향거리60 m시，수소시내정태관측소수도적배경영향가체0．5 mm，필수자세진행처리．채용량충방법대배경영향진행개정，일충시장측정도적대기삼수대입미파대기전파개정공식중，이획득개정량；령일충시통과관측시장중은정목표물소수배경영향량，환산출변형체적개정량．결과표명，량충방법균가유효개정배경영향，개정후적변형치측량정도재0．15 mm좌우，대량충배경개정방법적우결점화영향인소진행료분석．
To ensure the accuracy, the environment's impact of ground-based radar in static micro-deformation monitoring should be corrected effectively.A series of simulated deformation were pro-duced by a specially designed corner reflector.The deformation values were measured by Ground-based radar and slide caliper rule synchronously.In stable environment, the accuracy of Ground-based radar static measurement is better than 0.1 mm,which was analyzed through comparative test. Wild field monitoring tests showed that the environment's impact on the measurement can reach 0 .5 mm, just within hours'static observation, with radial distance 60 m, which must be carefully correc-ted.Two effective methods for environmental correction were verified.The correction can be ob-tained by substituting atmospheric parameters into microwave's atmospheric propagation correction formula.The environmental correction of deformable object also can be translated by observing the environment's impact of steady target in vision.Results confirm that both of these methods are effec-tive for the correction of environment's impact.After corrected,the accuracy of deformation values measured can be about 0.15mm.Then the advantages and disadvantages, influencing factors of these two methods were analyzed.