| 摘要 |
PURPOSE:To attain rapid synchronization capture and stable reception by executing synchronization capture by a false noise signal having the number of bits different from that of a receiving signal. CONSTITUTION:A bit consisting of 1,026 bits e.g. generated from a false noise generator 18 is converted into signals having different phase differences in each bit by a phase shifter 11 and respective signals are correlated by correlators 1 (1a-1c) and detected by a detector 3 through band pass filters 2 (2a-2c). When correlation with the receiving signal is found out in any one of the correlators, an output from the correlator is inputted to a comparator 10 and a control signal is generated from a control part 15 to convert the false noise signal into a signal consisting of 1,023 bits. |
