Resources Contact Us Home
Radar system

Image Number 13 for United States Patent #7675457.

A radar system transmits a beam of detection radio waves with a predetermined azimuth width, receives a reflected wave from a target, changes a central azimuth of the beam, and detects the distribution of reception signal strengths at predetermined angular intervals and for each predetermined distance. Then, when the reception signal strength distribution associated with changes in azimuth is expressed in rectangular coordinates, an azimuth corresponding to a vertex of an isosceles triangle that approximates the reception signal strength distribution and has an azimuth width, which is determined by the beam azimuth width, as its base is detected as the central azimuth of the target. Thus, the radar system becomes capable of detecting the azimuth of a target at a resolution capability higher than in the case where the movement of a target cannot be detected at a resolution equal to or less than the beam width of detection radio waves, and higher than in the case where a resolution in the azimuth direction is determined by the sampling interval in the azimuth direction. Moreover, the problem of deviation of the peak position of a reception signal strength from the center of a target can be solved.

  Recently Added Patents
Low power voltage controlled oscillator (VCO)
Milk frother
Anti-GITR antibodies
Automatic detection of image degradation in enhanced vision systems
System and method for judging success or failure of work of robot
Plants and seeds of hybrid corn variety CH717591
Image stabilization
  Randomly Featured Patents
Liquid evaporating apparatus
Diagnostic equipment for an exhaust gas cleaning apparatus
Sanitary napkin
Drinking straw with integral filtration system
Phase demodulation method and apparatus for a wireless LAN, by counting the IF period
Collapsible ball game practice device
Methods of moving the rotating means of a wind turbine during transportation or stand still, method of controlling the moving of the rotating means, nacelle, auxiliary device, control and moni
Method of making ceramic articles
Method of stacking a supply of hooks on a card
Image sensor and digital camera