发明名称 FADING PITCH MEASURING APPARATUS, FADING PITCH MEASURING METHOD AND PORTABLE INFORMATION TERMINAL USING THEM
摘要 <p>In a CDMA mobile station or the like, there are provided a plurality of despreaders (5a, 5b, 5c, 5d) connected to a common receiving system for effecting despreadings for respective multi-paths. A first combiner (6) is used to obtain a combined signal by combining signals outputted from the plurality of despreaders (5a, 5b, 5c, 5d) with phase differences between the multi-paths maintained. A fading pitch sensor (7) is used to measures the fading pitch fD from the combined signal. In this way, the fading pitch can be determined with high precision without using a plurality of branches (antennas) receiving signals which can be assumed to have no correlation therebetween.</p>
申请公布号 WO2001059956(P1) 申请公布日期 2001.08.16
申请号 JP2001000845 申请日期 2001.02.07
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