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在Keysight是德矢量网络分析仪中进行迹线数学运算

时间:2021-04-07 点击:789次

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JIXIANSHUXUEYUNSUANDELIANGZHONGXINGSHIWEI‘SHUJU/CUNCHUQI’(SHUJUCHUYICUNCHUQI)HE‘SHUJU-CUNCHUQI’(SHUJUJIANQUCUNCHUQI)。‘SHUJU/CUNCHUQI’XINGSHIZUOWEIBIAOZHUNHUAGONGJUDEDAOGUANGFANYINGYONG,SHIYONGFANWEIBI‘SHUJU-CUNCHUQI’XINGSHIGENGPUBIAN。

详细信息:‘数据/存储器’

形式:线性幅值
如果分析仪的显示形式为线性幅值,那么‘数据/存储器’迹线数学运算的结果是两个复数相除。使用复数的极式进行除法运算。如方程所示,计算出的幅值等于两个幅值之比,而相位则等于两个相位之差:

Equation for linear magnitude

式中:
D = 数据迹线幅值,
a = 数据迹线相位,
M = 存储器迹线幅值,
ß = 存储器迹线相位。


形式:对数幅值
如果分析仪的显示形式为对数幅值,那么‘数据-存储器’迹线数学运算的结果将是两个原始对数幅值之差。如方程所示,计算出的幅值等于两个幅值之比,而相位则等于两个相位之差:

YIXIALIEJULEYIGELIZI,DUIYIDUIFUSHUXIANGLIANGJINXING‘SHUJU-CUNCHUQI’YUNSUANBINGYIJIHEFANGSHIBIAOSHI:

Logarithmic magnitude

ZONGZHI,‘SHUJU/CUNCHUQI’JIXIANSHUXUEYUNSUANWEIXIANXINGXINGSHISHI,FUZHIXIANGCHU,XIANGWEIXIANGJIAN。‘SHUJU/CUNCHUQI’JIXIANSHUXUEYUNSUANWEIDUISHUXINGSHISHI,DUISHUFUZHIXIANGXIANGWEIYIYANGXIANGJIAN。

详细信息:‘数据-存储器’

‘SHUJU-CUNCHUQI’SHILIANGGEFUSHUZUOXIANGLIANGJIANFA。ZHEIZHONGXINGSHIBUXIANG‘SHUJU/CUNCHUQI’JIXIANSHUXUEYUNSUANNEIMECHANGJIAN。YINGYONG‘SHUJU-CUNCHUQI’XINGSHISHI,XUYAOCUNCHUSHUJU,RANHOUJIANQUCEDEDEXIANGLIANGWUCHA,LIRUFANGXIANGXINGHUONENGGOUBEIDANDUCELIANGDERENHEQITAGANRAOXINHAO。SHIYONG‘SHUJU-CUNCHUQI’XINGSHISHI,FUZHIHEXIANGWEIBUNENGTONGGUOZHIJIEBALIANGGEFUSHU(WULUNSHIXIANXINGXINGSHIHAISHIDUISHUXINGSHI)DEFUZHIHEXIANGWEIFENBIEXIANGJIANLAIDECHU。‘SHUJU-CUNCHUQI’YAOQIUYIXIAFUSHUBIAOSHIFAHEFANGCHENG:

Data memory equation

YIXIALIEJULEYIGELIZI,DUIYIDUIFUSHUXIANGLIANGJINXING‘SHUJU-CUNCHUQI’YUNSUANBINGYIJIHEFANGSHIBIAOSHI:

Data - memory diagram

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