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测试测量 LT5528 WCDMA ACPR和AltCPR测量
 
ACPR (adjacent channel power ratio), AltCPR (alternatechannel power ratio), and noise are important performancemetrics for digital communication systems thatuse, for example, WCDMA (wideband code division multipleaccess) modulation. ACPR and AltCPR are bothmeasures of spectral regrowth. T ...
SQL Server java 通用连接 MS SQL 的写法
java 通用连接 MS SQL 的写法 ，给新手用吧
DBconnect DBC
DBC = new DBconnect()
java.sql.Statement stmt = null
if (DBC.connectDB())
{