| 摘要 |
PURPOSE:To improve the generation establishment of energy of step-out and a correlative peak value to output many codes of the best characteristic, by making delay times of circuits, which constitute a row of delay circuits, uneven and making coefficients of coefficient multipliers uneven in the spread vector communication system. CONSTITUTION:Information from an information source 1 is sampled by clocks of a transmission-side clock circuit 5 in a sampling circuit 2 and is applied to a signal spreading circuit 3, and an encoded signal from the circuit 3 is transmitted to a receiving-side signal processing spreading circuit 7 through a transmission line 6. Delay circuits 12-14 having delay times tau1-taun connected in series to the circuit 3, product circuits 15-17 having coefficients C1-Cn connected to connection points of circuits 12-14, and a signal adding circuit 19 which operates the sum of product circuits 15-17 and transmits it to the transmission line 6 are provided. The receiving-side circuit 7 is provided with the circuit 3 and delay and product circuits having the reverse constitution. Delay times and coefficients of product circuits are made uneven respectively to improve the generation establishment of energy of step-out and a correlative peak value. |
