Abstract
where the tracking system model presumes white process and measurement noise. In practice, the measurement noise may not be white. Its bandwidth may be on the order of several hertz. For example, target scintillation (or glint) causes the range and angle measurement errors to have a finite bandwidth. Another example of correlated measurement error is the radial velocity measurement error appearing as a result of radar frequency instability and target velocity fluctuations.When the measurement frequency is much smaller than the error bandwidth, the errors of successive measurements are approximately uncorrelated and can be treated as white noise. However, the measurement frequency of some modern radars is sufficiently high and the correlation cannot be ignored without tracking accuracy deterioration.A possible approach to circumvent the effect of colored noise is the target state augmentation technique.
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