| 摘要 |
PURPOSE:To obtain a device capable of simulating line quality of a spread spectrum signal wave by providing a 2nd central processing unit used to simulate generation of a spread code and a 2nd storage device used to store the spread code data generated by the 2nd central processing unit to the device. CONSTITUTION:A 2nd central processing unit 4 simulates the production of a spread code and stores the spread code data to a 2nd storage device 6. A 1st central processing unit 3 generates a PSK signal wave based on a signal wave whose base band is spread by the spread code generated by the 2nd central processing unit 4. Then a 4th central processing unit 6 applies inverse spread processing to a signal wave demodulated from the PSK signal wave based on the spread code stored in the 2nd storage device 6 to extract a base band and calculates a code error rate based on the base band. The result of calculation is displayed on a display device 11 via an output terminal equipment 10. |
