地磁场水平梯度对飞机磁干扰补偿精度的影响
|
摘要
分析了地磁场水平梯度对飞机磁场模型的影响,利用航空磁测试验数据和地磁场水平梯度仿真数据,对飞机磁场模型系数进行了求解计算,并对飞机在特定航向上机动飞行时产生的干扰磁场进行了仿真补偿试验。计算和仿真试验结果表明:地磁场水平梯度引起的飞机磁场和方向余弦变化会使飞机磁场求解结果产生偏差,从而降低飞机磁干扰补偿精度。
The influence of the geomagnetic horizontal gradient on the model of the aircraft magnetic field was analyzed,and the model coefficient of the aircraft magnetic field was calculated by using the aeromagnetic survey test data and the simulated geomagnetic horizontal gradient data.Then the simulation of the compensation magnetic interference was carried out.The results of calculation and simulation show that the change of aircraft magnetic field and direction cosine caused by the geomagnetic horizontal gradient will make the solving result of aircraft magnetic field deviate,thereby reducing the compensation precision.
The influence of the geomagnetic horizontal gradient on the model of the aircraft magnetic field was analyzed,and the model coefficient of the aircraft magnetic field was calculated by using the aeromagnetic survey test data and the simulated geomagnetic horizontal gradient data.Then the simulation of the compensation magnetic interference was carried out.The results of calculation and simulation show that the change of aircraft magnetic field and direction cosine caused by the geomagnetic horizontal gradient will make the solving result of aircraft magnetic field deviate,thereby reducing the compensation precision.
引文
[1]张昌达.航空磁力梯度张量测量——航空磁测技术的最新进展[J].工程地球物理学报,2006,3(5):354-361.ZHANG Chang-da.Airborne tensor magnetic gradiometry—The latest progress of airborne magnetometric techno-logy[J].Chinese Journal of Engineering Geophysics,2006,3(5):354-361.(in Chinese)
[2]TOLLES W E,LAWSON J D.Magnetic Compensation of MAD Equipped Aircraft[R].Mineola:AirborneInstruments Lab Inc.,1950.
[3]WILLIAMS P M.Aeromagnetic compensation using neural networks[J].Neural Computer&Application,1993,1:207-214.
[4]邓鹏,谭斌,林春生.飞行器外部磁场干扰补偿的预处理[J].海军工程大学学报,2011,23(3):58-61.DENG Peng,TAN Bin,LIN Chun-sheng.Pretreatment of compensation for aircraft′s magnetic interference[J].Journal of Naval University of Engineering,2011,23(3):58-61.(in Chinese)
[5]LEACH B W.Aeromagnetic compensation as a linear regression problem[J].Information Linkage Between Ap-plied Mathematics and Industry,1980,2:139-161.
[6]IAGA Division V,Working group V-MOD.The 10th-generation international geomagnetic[J].Geophys.J.Int.,2005,161:561-565.
[7]安振昌,王月华,徐元芳.中国及邻近地区地磁场垂直梯度的计算与研究[J].空间科学学报,1991,11(1):14-23.AN Zhen-chang,WANG Yue-hua,XU Yuan-fang.Calculations and analysis of vertical gradient of the geomagneticfield in China and adjacent areas[J].Chinese Journal of Space Science,1991,11(1):14-23.(in Chinese)
[8]安振昌.地磁场水平梯度的计算与分析[J].地球科学进展,1992,7(1):39-43.AN Zhen-chang.Calculations and analysis of the horizontal gradient of the geomagnetic field[J].Advance in EarthSciences,1992,7(1):39-43.(in Chinese)
[9]安振昌.地磁场总强度梯度的计算与分析[J].物探与化探,1992,16(5):365-369.AN Zhen-chang.Calculation and analysis of the gradient of the total geomagnetic intensity[J].Geophysical andGeochemical Exploration,1992,16(5):365-369.(in Chinese)
[2]TOLLES W E,LAWSON J D.Magnetic Compensation of MAD Equipped Aircraft[R].Mineola:AirborneInstruments Lab Inc.,1950.
[3]WILLIAMS P M.Aeromagnetic compensation using neural networks[J].Neural Computer&Application,1993,1:207-214.
[4]邓鹏,谭斌,林春生.飞行器外部磁场干扰补偿的预处理[J].海军工程大学学报,2011,23(3):58-61.DENG Peng,TAN Bin,LIN Chun-sheng.Pretreatment of compensation for aircraft′s magnetic interference[J].Journal of Naval University of Engineering,2011,23(3):58-61.(in Chinese)
[5]LEACH B W.Aeromagnetic compensation as a linear regression problem[J].Information Linkage Between Ap-plied Mathematics and Industry,1980,2:139-161.
[6]IAGA Division V,Working group V-MOD.The 10th-generation international geomagnetic[J].Geophys.J.Int.,2005,161:561-565.
[7]安振昌,王月华,徐元芳.中国及邻近地区地磁场垂直梯度的计算与研究[J].空间科学学报,1991,11(1):14-23.AN Zhen-chang,WANG Yue-hua,XU Yuan-fang.Calculations and analysis of vertical gradient of the geomagneticfield in China and adjacent areas[J].Chinese Journal of Space Science,1991,11(1):14-23.(in Chinese)
[8]安振昌.地磁场水平梯度的计算与分析[J].地球科学进展,1992,7(1):39-43.AN Zhen-chang.Calculations and analysis of the horizontal gradient of the geomagnetic field[J].Advance in EarthSciences,1992,7(1):39-43.(in Chinese)
[9]安振昌.地磁场总强度梯度的计算与分析[J].物探与化探,1992,16(5):365-369.AN Zhen-chang.Calculation and analysis of the gradient of the total geomagnetic intensity[J].Geophysical andGeochemical Exploration,1992,16(5):365-369.(in Chinese)