SLIDING CORRELATOR MATCHED FILTER AND DEMODULATION CIRCUIT

摘要

PROBLEM TO BE SOLVED: To reduce the power consumption much more regardless of a simple and small scale configuration by using a conventional operational amplifier so as to conduct analog arithmetic processing. SOLUTION: The sliding correlator, multiplies a pseudo random noise PN code by an analog input signal subjected to code division multiplex CDMA modulation under the control of a differential amplifier 60 and a multiplier switch 20, an information storage capacitor 50 stores the result of multiplication, a storage result by one symbol is added by the control of a summing switch 40 to obtain a correlation output.