Electronically scanned echo pulse receiver

Details Electronically scanned echo pulse receiver Electronically scanned echo pulse receiver

H - Electricity

01

Q

351/19, 349/25,

H01Q 3/26 (2006.01) G01S 7/28 (2006.01) G01S 13/42 (2006.01) G01S 15/42 (2006.01)

Patent

CA 1089060

ABSTRACT OF THE DISCLOSURE Scanning angle control for a linear array of spaced transducers in a pulse echo receiver is implemented by mixing the respective transducer outputs with progressively shifted output signals from a multi-stage, variable phase shifter fed by a local oscillator. The additively combined mixer outputs thus contain frequency sum and difference components, which are extracted by low or high pass filters to implement scanning control on either side of a perpendicular to the array. When a two dimensional array of transducers arranged in a row and column coordinate grid is employed, scanning in both azimuth and elevation may be implemented by coupling each column of trans- ducer mixers to the respective phase shifter stages through digital delay circuits arranged in rows and fed by a variable frequency clock pulse generator, whereby progressive delays are provided in the colunmar direction.

276305

Affiliated with

Also associated with

Rating

Electronically scanned echo pulse receiver does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electronically scanned echo pulse receiver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronically scanned echo pulse receiver will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-813942