急！电信专业英语翻译

Wave form generator with progressive computer technology and microelectric technique application and one new signal source that form and develop among measuring instrument constantly. At present, the wave form generator produced at home utilizes the discrete component and simulation integrated circuit to form mostly, Cheng of changing etc. by manual to come, realize, not only volume heavy, but also dependability and accuracy raise further while being very much difficult. System this adopt digital frequency formate technology produce wave form, whole system to go on, punish to digital signal directly, there are stronger anti-interference ability and stability to enable the system. Formate the signal generator that the principle made into on the basis of frequency, because can obtain very high frequency stability degree and accuracy, so development is very fast. This text has mainly described basic composition, operation principle and characteristic of DDS system.

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