| 摘要 |
PURPOSE:To suppress the influence of a self-convolution signal generated by an SAW convolver and to decrease a transmission error of an SS communication equipment by providing a gate synchronizing part for controlling an input gate part and an output gate part. CONSTITUTION:An input gate 19 is installed in front of each input terminal of a surface acoustic wave(SAW) convolver 10, and an output of the SAW convolver 10 is fetched through an output gate 20. Also, a gate synchronizing part 21 for controlling the generation timing of a pseudo noise code(PN code) of a reference signal R0(t), the timing for opening/closing of each input gate 19, and the timing for opening/closing of the output gate, and also, synchronizing them, with respect to an input signal S0(t) is installed. In such a way, the influence of a self-convolution signal generated by the SAW convolver 10 is suppressed, and a transmission error of a spread spectrum(SS) communication equipment can be decreased. |
