发明授权
- 专利标题: Three-dimensional channel sounder for DTV receivers
- 专利标题(中): 用于DTV接收机的三维通道发声器
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申请号: US09422443申请日: 1999-10-21
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公开(公告)号: US06417805B1公开(公告)日: 2002-07-09
- 发明人: John Erik Hershey , Mark Lewis Grabb , Kenneth Brakeley Welles, II
- 申请人: John Erik Hershey , Mark Lewis Grabb , Kenneth Brakeley Welles, II
- 主分类号: G01S302
- IPC分类号: G01S302
摘要:
A digital television (DTV) receiver is provided with a sounder comprising a wideband transmitter and a plurality of wideband receivers having separately located receiving antennas, so that the sounder is, in effect, a bistatic radar system for any given channel, in order to characterize a significant nearby, indoor reflector. A microprocessor receives the timing information generated by the wideband transmitter impulses and the reflected impulse returns to each of the receiving antennas, and calculates a multipath model representing the three-dimensional location of a significant, nearby scatterer.