发明名称 |
METHOD FOR MEASUREMENT BY DIGITAL SPECTRUM ANALYZER |
摘要 |
In a method for measurement by a digital spectrum analyzer the frequency range of measurement is divided into a plurality of regions. For each region a test signal suitable for measurement of the region is generated independently, and the test signal is supplied to a device under test. The output of the device under test is converted by an AD converter into a digital signal, which is then subjected to fast Fourier transform. For each region the sensitivity of the AD converter is set for optimal conversion of the signal level at its input side by the converter, and then the fast Fourier transform is carried out. On the basis of the sensitivity set for one of the regions, the magnitude of the fast Fourier transform output in each of the other regions is corrected according to the sensitivity set for the region. |
申请公布号 |
DE3469318(D1) |
申请公布日期 |
1988.03.17 |
申请号 |
DE19843469318 |
申请日期 |
1984.09.26 |
申请人 |
TAKEDA RIKEN KOGYO KABUSHIKIKAISHA |
发明人 |
YAMAGUCHI, TAKAHIRO;OGAWA, MASAYUKI;KASAHARA, TOSHIHARU |
分类号 |
G01R27/28;G01R23/16;(IPC1-7):G01R23/16 |
主分类号 |
G01R27/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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