发明授权
- 专利标题： Radio digital signal receiver
- 专利标题（中）： 无线电数字信号接收机
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申请号： US09805766申请日： 1999-09-17
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公开(公告)号： US07529321B1公开(公告)日： 2009-05-05
- 发明人: Kenichi Shiraishi , Shoichi Suzuki , Akihiro Horii , Shoji Matsuda , Takahiro Wada
- 申请人： Kenichi Shiraishi , Shoichi Suzuki , Akihiro Horii , Shoji Matsuda , Takahiro Wada
- 申请人地址： JP Tokyo JP Kanagawa
- 专利权人： Kabushiki Kaisha Kenwood,Leader Electronics Corporation
- 当前专利权人： Kabushiki Kaisha Kenwood,Leader Electronics Corporation
- 当前专利权人地址： JP Tokyo JP Kanagawa
- 代理机构： Robinson Intellectual Property Law Office, P.C.
- 代理商 Eric J. Robinson
- 优先权： JP10-282046 19980918
- 国际申请： PCT/JP99/05088 WO 19990917
- 国际公布： WO00/18077 WO 20000330
- 主分类号： H04L27/22
- IPC分类号： H04L27/22
摘要：
A digital satellite broadcast receiver capable of an optimum signal reception even when an arbitrary outdoor unit is connected. Please noise characteristics of an outdoor unit connected to a digital satellite broadcast receiver when receiving a burst symbol is estimated based on a bit error rate of an 8PSK modulation signal determined by a trellis decoder (7) when a CNR measured by a CNR measurement circuit (5) is equal to a preset value, and, based on the estimated phase noise characteristics of the outdoor unit, a filter factor of a loop filter (9) inserted into a carrier regenerative loop is set.