Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Acquisition system for continuous-wave frequency modulation object detector










Image Number 10 for United States Patent #4200871.

A continuous-wave frequency-modulation active radiometric target seeking device performs search, acquisition, and tracking functions. A technique is provided for target range discrimination and recognition using a pair of narrow band i.f. filters also improving both signal-to-clutter ratio and signal-to-receiver noise ratio. Target search is accomplished with simultaneous and synchronized range and antenna azimuth scanning with range bins effectively swept across the target by variably modulating the transmitted carrier frequency. Recognition of a substantially point target is achieved by a bipolar pulse discriminator responsive to the i.f. filter pair. Upon target acquisition, tracking is maintained by imposing a high frequency dither upon the modulation frequency in a closed loop control using only a single i.f. filter.








 
 
  Recently Added Patents
Charge pump and method of biasing deep N-well in charge pump
Image display device and display unit for image display device
Systems and methods for automobile accident claims initiation
Radiation-emitting semiconductor chip and method for producing a radiation-emitting semiconductor chip
Front exterior of an automotive tail lamp
Mineral, nutritional, cosmetic, pharmaceutical, and agricultural compositions and methods for producing the same
Probe for ultrasound diagnostic apparatus
  Randomly Featured Patents
Automated catheter construction
Liquid detector for thin-walled tanks operating in zero gravity
Utility blade
Swing analysis method
Electrical inverter circuit
Method and device for determining a similarity of measure between a first structure and at least one predetermined second structure
Target for transparent electroconductive film, transparent electroconductive material, transparent electroconductive glass, and transparent electroconductive film
Radio frequency array antenna employing stacked parallel plate lenses
Benzamidine derivatives as factor XA inhibitors
Vegetation uprooting tool