Determination of system response

Details Determination of system response Determination of system response

1982-08-19

1984-12-04

Farley, Richard A.

Communications, electrical: acoustic wave systems and devices

Testing, monitoring, or calibrating

73 1DV, G01C 1738

Patent

active

044868626

ABSTRACT:
Determination of the impulse response of a system such as a hydrophone is determined by generating a broad band reproducible test signal which after propagation is received and a replica of the broad band test signal is produced; either the received signal is compensated for fluctuations in propagation time of the test signal through the system and cross correlation of the compensated signal with the non-compensated signal is effected to derive the system response. A secondary signal may be used with the broad band test signal whereby the Doppler shift of the secondary signal can be utilized to determine the required compensation. Feed-back shift registers are disclosed for generating pseudo random noise for the test signal and the replica thereof. The invention permits calibration of a hydrophone in circumstances in which noise is present and variation in path length of the propagated test signal occurs.

REFERENCES:
patent: 3912880 (1975-10-01), Powter
patent: 3942150 (1976-03-01), Booth et al.

Affiliated with

Also associated with

Rating

Determination of system response does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Determination of system response, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Determination of system response will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1586260