| 摘要 |
PURPOSE:To provide the spread spectrum communication equipment in which an occupied frequency band width is made narrow. CONSTITUTION:A division section 11 divides a series of transmission information signals into plural lines and an SS modulation section 12 uses a different pseudo noise code from each line to apply spread spectrum modulation, spread signals are synthesized, a transmission frequency control section 14 is used to convert the signal into a radio frequency band and the result is sent, then the occupied frequency band width on a transmission line is made narrow. |
