Method and apparatus for decoding of frequency inversion based scramblers

作者: Larry C. Puhl , Daniel P. Brown

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摘要: A method and apparatus for decoding of frequency inversion based scramblers is disclosed. quadrature amplitude modulation detector determines the tone used inverting scrambled signal by determining which a plurality pairs, each using different conversion frequency, has greatest magnitude difference between quadraturely related signals. The pair with during period time. This information to generate reinversion unscramble signal.

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