MUMBAI, India, June 16 -- Intellectual Property India has published a patent application (202611053414 A) filed by Indian Institute Of Technology, New Delhi, on April 27, for 'system and method of multi-target range, doppler, angle and micro-motion parameter estimation in mimo-fmcw radar with limited measurements.'
Inventor(s) include Chattopadhyay, Arpan; Rai, Chandrashekhar; Singh, Himali; and Alex, Sanjay Jiju.
The application for the patent was published on June 5, under issue no. 23/2026.
According to the abstract released by the Intellectual Property India: "A multiple-input multiple-output frequency-modulated continuous-wave radar system 300 includes an array aperture 310 having transmit antennas and receive antennas, a transmit module 320 coupled to a chirp generator 331 and a chirp scheduler 332, a receive module 340, and a signal processing unit 360 configured to process a radar data cube 350 generated from returns corresponding to a selected subset of chirps and sparse antenna measurements. The signal processing unit 360 estimates target range using discrete Fourier transform focusing with binary integration or orthogonal matching pursuit, jointly estimates target velocity and angle of arrival, constructs a three-dimensional point target response from estimated bulk parameters, subtracts the point target response to isolate micro-Doppler components, estimates rotational frequency and blade length from the isolated components, and classifies motion type of an unmanned aerial vehicle. The system enables high-resolution estimation with reduced chirp transmissions and reduced hardware complexity."
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