Multiple-input multiple-output radar device and method for scanning at least one moving object and estimating probability of the object in 3D surrounding space

A multiple-input multiple-output (MIMO) radar device for scanning at least one moving object and estimating a probability of the at least one moving object existing in a 3D surrounding space, the multiple-input multiple-output radar device comprising:

• a plurality of transmitters, the plurality of transmitters transmitting electromagnetic wave signals with predetermined timing delays in the 3D surrounding space, the electromagnetic wave signals modulated with unique random sequences transmitted by the plurality of transmitters;
• a plurality of receivers, the plurality of receivers receiving the electromagnetic wave signals reflected by the at least one moving object in the 3D surrounding space, each of the plurality of the receivers comprising a plurality of matched filters corresponding to the plurality of transmitters, wherein each of the plurality of matched filters is configured to obtain the electromagnetic wave signals with the predetermined timing delays from a corresponding transmitter and output values, each of the plurality of matched filters of each of the plurality of receivers is configured to obtain the electromagnetic wave signals with the unique random sequences from the corresponding transmitter and filter the electromagnetic wave signals from other transmitters of the plurality of transmitters and output the values, each of the plurality of receivers comprises an intentional unmatched filter unmatched to the unique random sequences of each of the plurality of transmitters, the intentional unmatched filter of each of the plurality of receivers is configured to integrate an aggregated noise and interference level of the each of the plurality of receivers respectively;
• and
• a processor, the processor aggregating the values outputted by each of the plurality of matched filters of each of the plurality of receivers and calculating the probability of the at least one moving object existing in the 3D surrounding space, and the processor calculating the weight of the at least one moving object existing in the 3D surrounding space, wherein the weight calculated is inversely proportional to the aggregated noise and interference level of the each of the plurality of receivers.