The Fairy Tale of Simple All-Digital Radars: How to Deal With 100 Gbit/s of a Digital Millimeter-Wave MIMO Radar on an FPGA [Application Notes]

Driven by the demand for automotive assistance and safety systems, millimeter-wave (mm-wave) radars have received a lot of attention over a period of time. Experts share their views on how to deal with 100 Gbit/s speed of a digital millimeter-wave multiple-input, multiple-output (MIMO) radar on an field programmable gate array (FPGA). They also emphasize that sophisticated digital designs are required to realize the radar processing in real time. The received data can be processed in a streaming manner to minimize the number of memory accesses and maximize the frame rate. The idea is to process all incoming data immediately, which is combined with a pipelining concept and parallelization. This method is suitable for designs where each processing step reduces the amount of data such that the final result can be stored in memory with a smaller data rate. All phase errors arising from different sampling points in time and frequency are compensated for afterward.