Systems and methods for virtual doppler and/or aperture enhancement

A method for radar detection, comprising:

• at a radar transmitter comprising a plurality of spatially-separated transmit elements, transmitting a set of radar probe signals that define a Doppler aliasing velocity, wherein the set of radar probe signals are reflected by a target in an environment surrounding the radar transmitter;
• at a radar receiver comprising a plurality of spatially-separated receive elements, receiving a set of radar probe reflections, comprising, for each receive element of the plurality, generating a respective set of receiver signals at the receive element in response to reception of radar probe reflections of the set at the receive element;
• for each receive element of the plurality, based on the respective set of receiver signals, determining a respective radial velocity estimate associated with the target;
• based on the radial velocity estimates and the Doppler aliasing velocity, determining a set of candidate radial velocities;
• for each candidate radial velocity of the set, based on the set of radar probe reflections, determining a respective set of test looking angles, comprising, for each reflected signal of the set, determining an associated test looking angle;
• based on the test looking angles of the respective sets, selecting a candidate radial velocity of the set as the selected radial velocity;
• and
• based on the selected radial velocity, determining an egovelocity of at least one of the transmit elements or receive elements.