Dynamically tunable notch filter

Details Dynamically tunable notch filter Dynamically tunable notch filter

1993-06-11

1994-08-09

Hellner, Mark

Communications: directive radio wave systems and devices (e.g.,

Determining distance

With frequency modulation

342132, 356 5, G01C 308

Patent

active

053370562

ABSTRACT:
A dynamically tunable notch filter is used within a continuously transmitting laser radar system for filtering narcissus signals generated from a continuous linear frequency modulated chirp transmission signal at the transmission aperture antenna with the filter including mixing and band pass filtering at the narcissus dynamic frequency to eliminate the unwanted narcissus signals varying over the dynamic frequency range of the narcissus signals, and to also eliminate unwanted target images, for improved resolution and detection of low level reflected target signals which are often obscured by the presence of the relatively high-level unwanted narcissus signals.

REFERENCES:
patent: 4176351 (1979-11-01), DeVita et al.
patent: 4404562 (1983-09-01), Kretschmer, Jr. et al.
patent: 4620192 (1986-10-01), Collins
patent: 4957362 (1990-09-01), Peterson
Merrimac, Custom Integrated Assemblies-Image Reject Mixers, p. 14.

Affiliated with

Also associated with

Rating

Dynamically tunable notch filter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dynamically tunable notch filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamically tunable notch filter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-219053