Directional modulation (DM) is an attractive technique for securing wireless communication at the physical layer. DM systems usually require additional phase shifters or radio frequency vector ...

It is known that differential microphone arrays are sensitive to microphone mismatches. This paper studies the effects of microphone mismatches on the directivity factor (DF) of the first-order ...

Maryland state government will enter what could become a year-long hiring freeze on Tuesday. A round of buyouts and the elimination of vacant positions will take longer to sort out.