Method for the formation of channels for sonar

Details Method for the formation of channels for sonar Method for the formation of channels for sonar

1990-10-17

1992-03-31

Pihulic, Daniel T.

Communications, electrical: acoustic wave systems and devices

Echo systems

Distance or direction finding

G01S 1500

Patent

active

051013835

ABSTRACT:
A sonar that enables an already localized object to be found again uses a transmission antenna fitted out to transmit only the two .+-.first order secondary lobes. This antenna is supplied with a set of frequencies tiered so that each of these lobes determines a series of channels at transmission corresponding to these frequencies and filling two sub-sectors located to the right and to the left of the antenna. The reception is done by forming two wide channels, each of which covers one of the two transmission sub-sectors. The discrimination in bearing at reception is done by the discrimination of the frequencies. To cover a more extensive sector, including especially the central part located between two sub-sectors, the antenna can be made to rotate mechanically. This enables the construction of a simplified sonar which can be used in a consumable way.

REFERENCES:
patent: 3419845 (1968-12-01), Thiede et al.
patent: 4736630 (1988-04-01), Takahashi et al.

Affiliated with

Also associated with

Rating

Method for the formation of channels for sonar does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for the formation of channels for sonar, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for the formation of channels for sonar will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2264375