Digital watermark is wrapup marks in the way of signal processing in digitized hyperactive data imbedded.
数字水印是用信号处理的方法，在数字化的多媒体数据中嵌入的隐蔽标记。
All data in analogue form have been collected under various sea condition with a medium-range side scan sonar system and later digitized for numerical processing.
所有的模拟数据是在不同海况条件下用中量程侧扫声纳系统取得的，并进行了数字量化和数值处理。
This paper presents a study on error processing of map digitized data with nonlinear least squares adjustment which is called damped least squares.
应用非线性最小二乘平差方法阻尼最小二乘法研究了数字化数据误差处理，并将该方法与最小二乘条件平差进行了比较。
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