DELAY DISCRIMINATOR

PROBLEM TO BE SOLVED: To provide a delay discriminator, which has high resistance with respect to the variance in power voltage, etc. and can reduce errors between an actual potential and the designed one by deciding the absolute value of plural different correlation characteristics, which are modulated by the information signals for canceling the information signals included in the correlation characteristics and sharpening the tilt of delay discrimination characteristic having a synchronous traceable tilt. SOLUTION: The signal obtained by diffusing an information signal by a pseudo- noise code is multiplied by the pseudo-noise code, received from a receiving pseudo- noise code generator 54, and these multiplied signal and code are inputted to the time division circuits 43 and 44 after an inverse spread processing. The output signals of both circuits 43 and 44 are integrated by LPFs 45 to 48 and added together by an adder 49. These added signals are inputted to absolute value circuits 50 and 51 as a reference potential, respectively. The output signals of LPF 45 and 47 are inputted to the circuits 50 and 51 respectively to cancel the information signals diffused by the pseudo-noise code. Then a correlation characteristic different from each other on time base are transmitted through the LPF and composited to produce a reference potential, that is supplied to the circuits 50 and 51. Thus, the tilt of a delay discrimination characteristic is sharpened.