Device for the automatic testing of digital filters in moving-ta

Details Device for the automatic testing of digital filters in moving-ta Device for the automatic testing of digital filters in moving-ta

1980-01-07

1981-12-08

Tubbesing, T. H.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343 5NQ, 367 13, G01S 740

Patent

active

043050760

ABSTRACT:
One or more digital filters in the output of an echo detector in a radar or sonar system are periodically checked for correct operation by the application of a test signal to their input and the comparison of a resulting output signal with a predetermined response code stored in a read-only memory. If the comparison fails, a visual indicator is actuated; if the defective filter is one of a plurality, it is blocked and the gain of the echo detector is adjusted to compensate for the reduction in signal level. With two filters in respective circuit branches carrying detected echo signals in relative quadrature, these filters are tested alternately; failure of either of them may cause its automatic replacement by a standby filter.

REFERENCES:
patent: 4003054 (1977-01-01), Goldstone

Affiliated with

Also associated with

Rating

Device for the automatic testing of digital filters in moving-ta does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Device for the automatic testing of digital filters in moving-ta, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for the automatic testing of digital filters in moving-ta will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-570207