| 摘要 |
<p>PURPOSE:To obtain the spread spectrum demodulator which can surely demodulate data. CONSTITUTION:A carrier NCO 8 and EXOR circuits 6 and 7 remove a carrier component from a spread spectrum signal received by an antenna 1, and digital correlation equipments 10 and 11 compare the signal from the EXOR circuits 6 and 7 with a signal having a C/A code from a C/A code generator 9 and detect a correlative value between the both signals. A controller 12 samples the respective correlative values, having the bit length of received data timewisely divided into plural parts, plural times, adds the respective sampling values and detects the timing of inverting the received data according to the added correlative values for the bit length of these received data.</p> |
