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Method and apparatus for detecting a parity error in a sequence of DQPSK symbols of a digital transmission system
Method and apparatus for detecting a parity error in a sequence of DQPSK symbols of a digital transmission system
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机译：用于检测数字传输系统的DQPSK符号序列中的奇偶校验错误的方法和装置
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摘要
The present disclosure relates to a method for detecting a parity error in a sequence of DQPSK symbols of a digital transmission system, comprising determining a first demodulated symbol r1; determining a second demodulated symbol r2; determining a first parity symbol p1; determining a second parity symbol p2; determining a super-parity symbol q1; and detecting a parity error in the sequence of DQPSK symbols by comparing a combination of the first parity symbol p1 and the second parity symbol p2 against the super-parity symbol q1, wherein a parity between two DQPSK symbols describes a phase difference between the two DQPSK symbols.
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