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
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