| 摘要 |
PROBLEM TO BE SOLVED: To provide a receiver with excellent interference resistance and high sensitivity for a spread spectrum signal. SOLUTION: The receiver 20 receives a spread spectrum signal by a receiving antenna 11 and conducts inverse spread demodulation and demodulates information. In this case, a low-pass filter(LPF) 18 is interposed between an inverse spread demodulation circuit 14 applying inverse spread demodulation to the received spread spectrum signal and a spread code generating circuit 13 applying a spread code to the inverse spread demodulation circuit 14 so as to eliminate the need for a band-pass filter(BPF) between the receiving antenna 11 and a high frequency amplifier circuit amplifying the output signal of the receiving antenna 11. |
