On /spl alpha/-/spl beta/ target tracking initiation

We develop an efficient procedure to initialize the target tracker which brings the track from an initial fast rate, through an intermediate rate and into the steady state rate. /spl alpha/-/spl beta/ parameters for a first order approximation to the Kalman process are developed using the least squares method. The target tracking problem of the Benchmark Challenge is studied for the selection of intermediate track rate as well as the number intermediate samples. A comparison of the error covariance is made between the first order linear /spl alpha/-/spl beta/ gain selection and the Kalman processes. It is shown that a performance delay of a few samples results when using the first order /spl alpha/-/spl beta/ gain selection process compared to the Kalman process.