A new acceleration estimation method based on special FRFT in MIMO radar

Multiple input and multiple output (MIMO) radar can accumulate many more periods than Phased Array Radar. But when the target travels through the beam, the Doppler frequency motion may occur. So Doppler compensation must be done with more accurate acceleration estimation. The fractional Fourier transform (FRFT) methods in the references before are based on the analysis of global spectrum with fixed resolution and do not involve local detail spectrum. This paper puts forward using the united method of radical FRFT, Zoom-FRFT and single point FRFT for acceleration accurate estimation in MIMO radar.