导航方法和海底应答器绝对位置的校准是水声定位导航技术的关键。
The key techniques of underwater acoustic positioning and navigation are the navigation method and the precise calibration of the absolute position of the seabed transponder.
文中结合海底应答器位置校准方法，分别就声速分布已知和未知两种条件开发了深海声线弯曲修正方法。
Combined with the calibration method, two methods for the sound ray bending correction in deep sea are developed when the sound velocity profile is known and unknown separately.
文中结合海底应答器位置校准方法，分别就声速分布已知和未知两种条件开发了深海声线弯曲修正方法。
Combined with the calibration method, two methods for the sound ray bending correction in deep sea are developed when the sound velocity profile is known and unknown separately.
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