The zero cross point voltage comparing method (ZCPV method) developed by the authors can meet the above mentioned requirements.
文章作者研究开发的过零点电压比较法（ZCPV法）已能够满足这一要求。
This method enhanced the measuring accuracy by using the methods of wave head counting and zero-cross detection, and it implemented 3-d positioning with triangle square wave.
该定位系统采用波头计数与零交叉点检测的方法来提高超声测距精度，并通过三角形方法来实现三维定位。
This method enhanced the measuring accuracy by using the methods of wave head counting and zero-cross detection, and it implemented 3-d positioning with triangle square wave.
该定位系统采用波头计数与零交叉点检测的方法来提高超声测距精度，并通过三角形方法来实现三维定位。
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