发明授权
US09001945B2 Providing phase diversity combining of digital radio broadcast signals
有权
提供数字无线电广播信号的相位分集组合
- 专利标题: Providing phase diversity combining of digital radio broadcast signals
- 专利标题(中): 提供数字无线电广播信号的相位分集组合
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申请号: US13162164申请日: 2011-06-16
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公开(公告)号: US09001945B2公开(公告)日: 2015-04-07
- 发明人: Javier Elenes , Lokesh Duraiappah
- 申请人: Javier Elenes , Lokesh Duraiappah
- 申请人地址: US TX Austin
- 专利权人: Silicon Laboratories Inc.
- 当前专利权人: Silicon Laboratories Inc.
- 当前专利权人地址: US TX Austin
- 代理机构: Trop, Pruner & Hu, P.C.
- 主分类号: H04B7/10
- IPC分类号: H04B7/10 ; H04L1/02 ; H04B7/08
摘要:
In one embodiment, a method for performing antenna diversity combining for digitally broadcast radio signals includes generating a first signal quality metric for a first signal obtained from an incoming digitally broadcast radio signal received in a first signal path, and similarly generating a second signal quality metric for a second signal obtained from the radio signal received in a second signal path. Then the first and second signals from these paths can be coherently combined based on the signal quality metrics to obtain a combined frequency domain symbol. In some embodiments, this combined frequency domain symbol may be remodulated to a time domain symbol. Also in some embodiments N tuners can be daisy chained to generate a final output that is either a frequency domain symbol of combined sub-carriers, soft bits to a forward error correction (FEC) decoder, or a remodulated time domain symbol. As a further possibility, each of the N tuners can use a different local oscillator (LO) frequency.
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