Systems and methods for shaping multiplexing beams produced by antenna arrays

A radar processing system, comprising:

• a plurality of transmit (TX) antennas;
• at least one transmitter operably connected to the plurality of TX antennas;
• at least one receive (RX) antenna;
• a memory storing a set of unique, predetermined, linearly varying phase rates, with one phase rate assigned to each of the plurality of TX antennas;
• and
• a processor operably connected to the at least one transmitter, the at least one RX antenna, and the memory, the processor configured to:
• control the at least one transmitter to simultaneously transmit a plurality of encoded signals, wherein each encoded signal is modulated by its assigned phase rate over a sequence of time intervals;
• process a combined reflected signal, received via the at least one RX antenna, to generate a Doppler map, the Doppler map including contributions from target reflections and ghost artifacts resulting from the application of the phase rates;
• and
• execute instructions stored in memory to suppress effects of the ghost artifacts to enhance target detection.