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zero method 衡消法。

zero point

In order to remedy the faults of the traditional pipe - leak detector based on the straight - correlation analysis method which has high demand for hardware and high price , the pipe - leak detector based on the polarity correlation algorithm with the cross - zero method is presented , the hardware design and the test is finished , the result only with the error from 1 % to 3 % is gained , and its feasibility is testifies 針對采用直接相關法的傳統相關測漏儀對硬件要求高、價格較貴的缺點,將極性相關的過零算法應用于相關測漏,并設計了硬件結構,進行了實驗仿真,在實驗室條件下,測量誤差約為1 % ~ 3 % ,驗證了其可行性。

Research on time zero method of data fusion based on radar infrared dual mode guidance 雷達復合制導數據融合技術中的時間校準方法研究