Introducing velocity measurement into track filtering can improve filtering accuracy

but velocity ambiguity in LPRF radar still exists

and range differential or Kalman filter cannot solve this problem completely.Thus

a new velocity ambiguity filtering method based on multi-parameter delay decision is proposed.According to Bayes track probability

multi-hypothesis delay decision can be performed on those velocity parameters that are difficult to be decided currently

so the problem of radical velocity ambiguity in LPRF radar will be solved effectively.Simulation results show that this method is helpful for velocity ambiguity resolution and radical velocity measurement filtering

thus range estimation accuracy can be improved significantly and angle estimation accuracy can be improved to a certain extent.