| 摘要 |
PURPOSE:To make it possible to optionally set shift amount of pseudo-noise signals and shift at every integer of its series period, by sending synchronous pulses of the counter to the on/off control circuit through external phase controlling signals, and by performing the off control and phase shift on the clock signal. CONSTITUTION:The output of each stage of multistage shift register 2 is added to pattern detector 10. At this circuit 10 a synchronous pulse is generated at every one period of the pseudo-noise signal series, and a constant phase shift is received at fixed phase shift circuit 12 and then sent to 1/N counter 11. At counter 11 synchronous pulses of N periods are sent to on/off control circuit 8 through external phase controlling signal 9, and the off control is performed on clock signal 1 and phase shift is executed on noise signals. By this, the location from which phase shift of pseudo-noise signal is commenced, shift amount, the execution of shift at every integer of its series period can be set optionally. |
