多普勒计程仪测流速精度考核试验研究
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摘要
针对现有的计程仪对水测速精度考核方法抗外界干扰能力差的问题,文章提出了一种可减小风速风向和洋流影响的多普勒计程仪测流速精度考核新方法,该方法的核心思想在于"顺-逆"和"逆-顺"2个航程的计程仪速度平均矢量值与GPS速度矢量平均值相等。通过公式推导,给出了该方法抗洋流流速流向、风速风向等外界因素干扰的特性原理,并通过测流速误差分析计算,得到该方法相对于合速度标量消流法的高精度特性。最后,通过海上试验结果,验证了该方法的精确性和有效性。
Aiming at the problem of influence of wind and ocean current on speed-precision measurement relative to current for ADL, the paper proposed a new method which can eliminate the influence of wind and ocean current. The core concept lies in the vector average velocities of ADL being equal to the GPS vector average velocities. By formula derivation and deviation analyzing, the paper demonstrated the principle of its resistance against external interference and disturbances which contain current and wind, and proved that this method had a better velocity accuracy than scalar velocity dissipation method. Finally, the experimental results proved the high accuracy and availability of the proposed method.
Aiming at the problem of influence of wind and ocean current on speed-precision measurement relative to current for ADL, the paper proposed a new method which can eliminate the influence of wind and ocean current. The core concept lies in the vector average velocities of ADL being equal to the GPS vector average velocities. By formula derivation and deviation analyzing, the paper demonstrated the principle of its resistance against external interference and disturbances which contain current and wind, and proved that this method had a better velocity accuracy than scalar velocity dissipation method. Finally, the experimental results proved the high accuracy and availability of the proposed method.
引文
[1]邹洪,向大威,宣志芬,等.多普勒计程仪测速精度的测定[J].声学技术,2002,21(4):188-191.ZOU Hong,XIANG Da-wei,XUAN Zhi-feng,et al.Speedprecision measurement for ADL[J].Technical Acoustics,2002,21(4):188-191.
[2]GB/T 24558-2009,声学多普勒流速剖面仪[S].GB/T 24558-2009,Acoustic Doppler current profiler[S].
[3]HY/T 102-2007,声学多普勒流速剖面仪检测方法[S].HY/T 102-2007,Test method of acoustic Doppler current profiler[S].
[4]SL 337-2006,声学多普勒流量测验规范[S].SL 337-2006,Code for discharge measurement of acoustic Doppler current[S].
[5]邹红,向大威,许伟杰,等.多普勒计程仪速度参照系统的误差分析[J].声学技术,2003,22(3):162-168.ZOU Hong,XIANG Da-wei,XU Wei-jie,et al.Error analysis of speed reference system for ADL[J].Technical Acoustics,2003,22(3):162-168.
[6]芮震峰,陆冬青,石爱国,等.一种舰船实际航速的计算方法[J].舰船科学技术,2006,28(1):37-40.RUI Zhen-feng,LU Dong-qing,SHI Ai-guo,et al.A calculating method of ship’s actual speed[J].Ship Science and Technology,2006,28(1):37-40.
[7]傅菊英,吴炳昭.声学多普勒计程仪测速误差分析与补偿[J].海洋技术,2011,30(2):91-93.FU Ju-ying,WU Bing-zhao.Error analysis and compensation of acoustic Doppler velocity log[J].Ocean Technology,2011,30(2):91-93.
[8]黄雄飞,周徐昌,苑秉成.ADCP载体运动参数的控制[J].舰船科学技术,2007,29(5):67-69.HUANG Xiong-fei,ZHOU Xu-chang,YUAN Bing-cheng.The control of the parameters of shipboard with ADCP[J].Ship Science and Technology,2007,29(5):67-69.
[2]GB/T 24558-2009,声学多普勒流速剖面仪[S].GB/T 24558-2009,Acoustic Doppler current profiler[S].
[3]HY/T 102-2007,声学多普勒流速剖面仪检测方法[S].HY/T 102-2007,Test method of acoustic Doppler current profiler[S].
[4]SL 337-2006,声学多普勒流量测验规范[S].SL 337-2006,Code for discharge measurement of acoustic Doppler current[S].
[5]邹红,向大威,许伟杰,等.多普勒计程仪速度参照系统的误差分析[J].声学技术,2003,22(3):162-168.ZOU Hong,XIANG Da-wei,XU Wei-jie,et al.Error analysis of speed reference system for ADL[J].Technical Acoustics,2003,22(3):162-168.
[6]芮震峰,陆冬青,石爱国,等.一种舰船实际航速的计算方法[J].舰船科学技术,2006,28(1):37-40.RUI Zhen-feng,LU Dong-qing,SHI Ai-guo,et al.A calculating method of ship’s actual speed[J].Ship Science and Technology,2006,28(1):37-40.
[7]傅菊英,吴炳昭.声学多普勒计程仪测速误差分析与补偿[J].海洋技术,2011,30(2):91-93.FU Ju-ying,WU Bing-zhao.Error analysis and compensation of acoustic Doppler velocity log[J].Ocean Technology,2011,30(2):91-93.
[8]黄雄飞,周徐昌,苑秉成.ADCP载体运动参数的控制[J].舰船科学技术,2007,29(5):67-69.HUANG Xiong-fei,ZHOU Xu-chang,YUAN Bing-cheng.The control of the parameters of shipboard with ADCP[J].Ship Science and Technology,2007,29(5):67-69.