首页>
外国专利>
Digital signal detector, digital demodulator, method for detecting a digital signal, and method for synchronus detecting by a digital demodulator
Digital signal detector, digital demodulator, method for detecting a digital signal, and method for synchronus detecting by a digital demodulator
展开▼
机译:数字信号检测器,数字解调,用于检测数字信号的方法以及用于通过数字解调器进行同步检测的方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
A digital signal detector converts quantized modulation signals to digital data according to a plurality of discriminating conditions which are set by shifting phases, which are to be boundaries of discrimination, from each other. Predetermined data in the digital data are combined so that the phases used for discriminating the data rotate in time series, thereby constituting a plurality of comparison data. When a plurality of comparison data strings coincides with expected data strings, predetermined data strings can be detected. Since a plurality of comparison data strings corresponding to a plurality of frequency differences are compared with expected data strings by a plurality of discriminating units, data strings with frequency differences can be simultaneously detected, which results in shortening the time required for detection.
展开▼