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This paper presents a MIMO cross array with azimuth-elevation combined beamforming. Compared to an M×N rectangular array with one-way and two-way beamforming, the number of required array elements could be reduced from M×N to M+N+4 so as to drastically reduce the system cost while maintain higher angular resolution performance. Compared to an M+N cross array with one-way and two-way azimuth-elevation...
This communication presents a new multi-resolution composite array (MRCA) concept for digital beamforming (DBF) array to achieve very high angular-resolution with considerably less array elements. Furthermore, the beamforming performances of DBF radars with two proposed multi-resolution composite arrays were investigated with numerical experiments and compared to a conventional full-filled array and...
This paper presents a novel low-cost time-division multiplexing MIMO radar system concept by using only one transmitter and one receiver. For an MIMO radar system of M-element transmitting array and N-element receiving array, the number of required transmitters/receivers is reduced from N+M to 2 for considerable cost reduction.
This paper presents a novel low-cost radar digital beamforming system concept with only a single microwave digital receiver. The proposed concept uses a microwave switch to select echo signals from an N-element array so that the number of required microwave digital receivers is reduced from N to 1 for drastic cost reduction. Typical low-cost DBF systems have severe constraints on the switching speed...
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