Impact of Internal and External Interferences on the Performance of a FMCW Radar

Although Frequency Modulated Continuous-Wave (FMCW) technology has become by now mature, there are still some unsolved problems left. The first group of them are noise and distortion from their own transmitter or receiver. They are usually caused by Direct Digital Synthesis (DDS) and power converters performance. They appear on radar display as circles or arcs because of their isotropic properties. The second group are interferences from the external world, like beams of pulsed radars working in the same frequency band, reflections from close buildings and installations or sea clutter. Apart from creating artificial echoes of targets, they can cause degradation of radar tracking system. This paper evaluates the influence of internal and external sources of interferences on the FMCW radar performance. Digital Signal Processing (DSP) algorithms which optimize detection of FMCW radar were presented. Means of suppressing analog interferences by digital techniques were shown as well.


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  • Accession Number: 01496228
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Oct 3 2013 3:27PM