Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Frequency interrupt continuous transmit active sonar transmission and signal processing technique










Image Number 10 for United States Patent #5150335.

In a time continuous transmit active sonar system the frequency of the transmitted waveform is interrupted at predetermined intervals so that a frequency discontinuity in the transmitted waveform occurs at each interruption. The starting and ending frequencies at the beginning and end of the interruptions provide indications for properly resolving the range/Doppler ambiguity that is inherent in prior continuous transmit sonar systems. The transmitted signal may be frequency modulated. Further, the frequency of the transmitted waveform may be rapidly changed and/or multiple frequency waveforms may be transmitted within the same time interval. An existing passive sonar detection system may be modified to include an active continuous transmit sonar system whose echo returns may be processed by the passive system, thereby achieving benefits over conventional active pulsed sonar systems.








 
 
  Recently Added Patents
Requirements model comparative analysis method for effort estimation in customizing a network monitoring and control system
Battery module
Electric connection box
Quinoid thiophene organic photoelectric material, preparation method thereof and application thereof
Actuators and moveable elements with position sensing
Opioid-ketamine and norketamine codrug combinations for pain management
Crystalline solvates of 6-(piperidin-4-yloxy)-2H-isoquinolin-1-one hydrochloride
  Randomly Featured Patents
Pair of cooperating disks to control the delivery of liquid in so-called screw type valves
Device and method for adjusting a bandpass filter, especially a combiner filter
Ink jet array
Delay-induced scattering with phase randomization and partitioned frequency hopping
External ligament system
Ultrasonic inspection method and system therefor
Method and system for providing setup assistance for computing system implemented applications
Input tray and drive mechanism using a single motor for an image forming device
Drapery traverse rod and support bracket
Gas flow monitor using a vortex generator