RECEIVER FOR SPREAD SPECTRUM COMMUNICATION

摘要

PROBLEM TO BE SOLVED: To eliminate an interference signal with respect to a highest speed signal by providing a demodulator, and plural reverse spread processing circuits, plural changeover switches and plural interference elimination circuits and giving an output signal of the changeover switches to the interference eliminating circuits sequentially. SOLUTION: A signal is given to an antenna 1-1 and its output is given to a receiver 1-2 and connects to plural reverse spread circuits 1-3. Outputs from the reverse spread circuits 1-3 connecting to the switch 1-4 are selected for each information symbol and connected alternately to either of the two circuits 15. Outputs of the circuits 1-3 are connected to all the circuits 1-5 to eliminate the interference signal. A switch 1-6 is connected to the circuit 1-7 by switching the output of the circuit 1-5 for each information symbol. The circuit 1-7 applies demodulation processing to the output of the circuit 1-5 to provide an output of demodulation data.