Then we perform digital pre-compensation method, which can be used in the processing of base band signal to reject image frequency and protect carrierleak to meet the application purpose.
然后采用对基带信号的数字预补偿方法来抑制镜像频率和载波泄漏，从而达到应用的目的。
2
Then we perform digital pre-compensation method, which can be used in the processing of base band signal to reject image frequency and protect carrierleak to meet the application purpose.
Gaseous helium is used as a coolant during the drawing of optical fibers, as a carrier gas for chromatography, and as a leak detection gas in a variety of industries.