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
Base station synchronization for a single frequency network
Analysis device and an analysis apparatus using the analysis device
User interfaces
System and method for combined I/Q generation and selective phase interpolation
Storage device having clock adjustment circuitry with firmware-based predictive correction
Apparatus for generating electrical energy from rocking activated energy
System and method for testing an integrated circuit embedded in a system on a chip
  Randomly Featured Patents
Adaptor for microscopes providing an odd number of reflections for providing an even number of reflections in conjunction with additional microscope reflection means
Air cleaner
Hydrogen storing carbon material
Thermal transmission control of wireless data modem
Method and apparatus for implementing user-definable error handling processes
Winder device
Pyridine-3-sulfonyl compounds as pesticidal agents
Charger
Diversity receiver
Traveling pneumatic cleaner with noise reducer