发明授权
- 专利标题: Receiver for real time locating system and method of receiving signal in real time locating system
- 专利标题(中): 接收机实时定位系统及实时定位系统接收信号的方法
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申请号: US12886698申请日: 2010-09-21
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公开(公告)号: US08798118B2公开(公告)日: 2014-08-05
- 发明人: Sang Hyun Mo
- 申请人: Sang Hyun Mo
- 申请人地址: KR Daejeon
- 专利权人: Electronics and Telecommunications Research Institute
- 当前专利权人: Electronics and Telecommunications Research Institute
- 当前专利权人地址: KR Daejeon
- 代理机构: Staas and Halsey LLP
- 优先权: KR10-2009-0126970 20091218
- 主分类号: H04B1/00
- IPC分类号: H04B1/00
摘要:
Provided are a receiver for a real time locating system (RTLS) and a method of receiving a signal in the RTLS. The receiver includes a down converter converting a radio frequency (RF) signal into a base band signal, a matched filter filtering the converted signal using an optimal receiving filter in view of a signal-to-noise ratio (SNR) such as a shaping filter used for a transmitter, an adaptive transversal filter (ATF) estimating an interference signal with an output of the matched filter, and filtering the output to remove interference of a heterogeneous signal of the same frequency band, a de-spreader multiplying an output of the matched filter and a code according to DSSS modulation used for spreading when a tag signal is modulated, and performing chip-matched filtering to obtain a value of correlation energy, and a detector detecting original transmission data using the correlation energy value.