The lower frequency virtual digital stored oscillograph was designed and researched combining software control technology with interface circuit, software and hardware system were made.

本文以软件控制技术为关键，配以接口电路，研制了超低频虚拟数字存储示波器。进行了相应的软、硬件系统的设计。

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This paper introduces the studying of a new kind of oscillograph-virtual digital-storage oscillograph of the gyro compass, and talks about its application of upholding the gyro compass.

介绍一种新型虚拟示波器—航海型电罗经专用虚拟数字示波器的开发，并讨论了其在电罗经的日常维护中的应用。

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Virtual digital-storage oscillograph system includes signal acquisition, signal processing and output display. Except signal acquisition is completed by hardware, the others are realized by software.

虚拟数字存储示波器系统由信号采集、信号处理和结果显示三大部分构成，但是除了信号采集部分是由硬件实现之外，其它两部分都是由软件实现。

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