Modified AMI code
- 三阶高密度双极性码（HDB3码是一种适用于基带传输的编码方式，用于欧洲E-carrier系统。它能克服AMI码的缺点，具有能量分散和抗破坏性强等特点。HDB3码将4个连续的“0”位元取代成“000V”或“B00V”，确保连续的violations are of differing polarity）
Modified AMI code
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abstract:
Modified AMI codes are Alternate Mark Inversion (AMI) line codes in which bipolar violations may be deliberately inserted to maintain system synchronization. There are several types of modified AMI codes, used in various T-carrier and E-carrier systems.
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WordNet