电波暗室；场地驻波比测试；评估系统Abstract In~oduce the current EMC test sites and common evaluate testing for them ．Illuminate a new evaluate testing method for EMC chamber一一Site Voltage Standing Wave Ratio(SVSWR)in details，Illuminate how to develop a SVSWR test system for chamber with hardware and software．Keywords EMC；anechoic chamber,SVSWR；evaluate system 1 背景A／342／CDO~关于高频NSA~I]试方法的规定，要求发射天电磁兼容的各个测试项目都要求有特定的测试场线为喇叭天线，由于喇叭天线的主瓣带宽较窄，发射时不地。