发明名称 |
ADJACENT CHANNEL LEAKAGE POWER RATIO MEASURING APPARATUS, CHANNEL POWER MEASURING APPARATUS, METHOD, PROGRAM, AND RECORD MEDIUM WITH RECORDED PROGRAM |
摘要 |
<p>The frequency of an adjacent channel signal is reduced by a down converter (12), wherein the signal (adjacent channel signal) in a predetermined band centered around the adjacent channel frequency passes through a band-pass filter (22). At this time, a signal out of the predetermined band among the signals output from the down converter (12) by the band-pass filter (22) passes through the filter (22). An FFT section (32) outputs the signal having passed through the band-pass filter (22) by making it correspond with a frequency so that a first power measuring section (34) is used for power measurement on the basis of only the signal in a predetermined band. Therefore, power on an adjacent channel signal is accurately measured upon reception of a measurement signal.</p> |
申请公布号 |
WO02065672(A1) |
申请公布日期 |
2002.08.22 |
申请号 |
WO2002JP00379 |
申请日期 |
2002.01.21 |
申请人 |
ADVANTEST CORPORATION;MUTO, MASAHIKO;MORIKAWA, AKIO |
发明人 |
MUTO, MASAHIKO;MORIKAWA, AKIO |
分类号 |
G01R29/08;H04B17/00;(IPC1-7):H04B17/00 |
主分类号 |
G01R29/08 |
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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