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
Process for making diethyl ether from acetic acid
String changing tool with a quick connector assembly and worm gear string cutter
Reproducible dither-noise injection
Performing failover for a plurality of different types of videoconferencing devices
Can seam inspection
Organic light emitting display apparatus
Electronic device
  Randomly Featured Patents
Toy vehicle
Rice cultivar designated `CL131`
Image data reproducing apparatus, method of controlling same and control program therefor
Method for preparing all-trans retinoyl CoA
Core of light water reactor and fuel assembly
Heterogeneous epoxidation catalyst
Modular beverage brewing system with interlocking assembly
Intelligent endoscope systems and methods
Tubular reinforcement element and method of making same
Scanning microscope system with automatic cell find and autofocus