压差型矢量传感器的方位估计性能

压差型矢量传感器具有结构简单、抗机械运动扰动性能强等优点,便于制作成浮标使用。提出了通用的矢量传感器整机测试的方位校准方法,在近似各向同性噪声场中验证了压差型矢量传感器声压、振速分量的独立性。海试浮标的拉距实验表明,压差型矢量传感器的方位估计精度达不到克拉美罗界（CRB）,实测精度大致比理论值降低3倍。

Performance of azimuth estimation of differential-pressure vector sensor

Differential-pressure vector sensors have advantages in simple structure,strong anti-turbulence of mechanical movement,etc.They can be easily made as buoys to be used.An azimuth correction method is put forward to test general vector sensors in overall testing.The acoustic pressure and the vibration velocity components of the differential-pressure vector sensors are verified to be independent from each other in a near isotropic noise field.Sea ranging tests indicate that the accuracy of the azimuth estimation of the differential-pressure vector sensor cannot reach CRB and the theoretical accuracy is about 3 times higher than the measured one.