不归零制（记录） NRZ?。
它所发送的信号是由一组正交的正弦信号作为副载波，用码元周期为T的不归零方波作为基带码型调制而成的。
The transmitted signals which were modulated is a group of orthogonal sine signals as subcarrier and non-regular zero square waves that the code elements period is t as baseband coded formats.
阐述了该系统的设计思想和实现方法，详细分析了该系统的工作原理和单极性不归零码与双极性归零码的相互转换方法。
It states designing idea and realizing method of the system, analyses in detail the working principle of the system and mutual transforming method of NRZ code and AMI code.
阐述了该系统的设计思想和实现方法，详细分析了该系统的工作原理和单极性不归零码与双极性归零码的相互转换方法。
It states designing idea and realizing method of the system, analyses in detail the working principle of the system and mutual transforming method of NRZ code and AMI code.
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