Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method of operating a continuous wave sonar system










Image Number 3 for United States Patent #6128249.

An improved method is provided for operating a continuous wave sonar syst At time of transmission, a plurality of acoustic pulses are transmitted one right after another. Each pulse has a unique frequency and is of a time duration that is approximately one second long. The pulses are characterized by a separation frequency representing a difference in frequency between numerically successive frequencies. However, the pulses are staggered with respect to frequency. In the preferred embodiment, each successively transmitted one of the pulses is separated in frequency from an immediately preceding transmitted one of the pulses by an amount greater than the separation frequency. These multiple pulses seperated in time and in frequency, reduce the effects of frequency speading caused by the medium, resulting in a sonar with enhanced detection performance.








 
 
  Recently Added Patents
LED lamp including heat dissipator
In-store marketing sign
Stowable pet leash and collar
Method for indicating the process of leaving a parking space
Light-source control device, light-source control method, image reading device, and image forming apparatus
Vehicle drive control system
Simulation parameter correction technique
  Randomly Featured Patents
Meshes of variable construction
Four-cycle engine
Low-concentration ozone waste water treatment
System management
Variable electrochromic optical attenuator
Methods and apparatus for responding to a request cluster
Additives for inhibiting the formation of gas hydrates
Method and system for virtualization of software applications
Semiconductor memory device and method for accessing memory cell
Method for manufacturing outlet nozzles for rocket engines