久久ER99热精品一区二区-久久精品99国产精品日本-久久精品免费一区二区三区-久久综合九色综合欧美狠狠

DDC

Digital down converter（數字下變頻） In digital signal processing， a digital down-converter (DDC) converts a digitized real signal centered at an intermediate frequency (IF) to a basebanded complex signal centered at zero frequency。 In addition to downconversion， DDC’s typically decimate to a lower sampling rate， allowing follow-on signal processing by lower speed processors。 。

相關標簽