A New Approach for Simultaneous Range Measurement and Doppler Estimation

To circumvent the dilemma of range and Doppler ambiguity in the conventional pulsed Doppler radars, a stepped time interval pulse train (STIPT) scheme is proposed in this letter. The STIPT approach eliminates range and Doppler ambiguities by setting the pulse interval difference appropriately. The range sidelobes are removed through a modified aperiodic correlation algorithm. Furthermore, the fast Fourier transform can be used in the Doppler processing. Consequently, the newly proposed approach can be applied to the conventional pulsed radar systems.