发明申请
US20080084951A1 Systems and methods for receiving multiple input, multiple output signals for test and analysis of multiple-input, multiple-output systems
审中-公开
用于接收多输入多输出信号的系统和方法，用于多输入多输出系统的测试和分析
- 专利标题： Systems and methods for receiving multiple input, multiple output signals for test and analysis of multiple-input, multiple-output systems
- 专利标题（中）： 用于接收多输入多输出信号的系统和方法，用于多输入多输出系统的测试和分析
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申请号： US11544421申请日： 2006-10-06
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公开(公告)号： US20080084951A1公开(公告)日： 2008-04-10
- 发明人: Helen Chen , Brian J. Avenell , Gordon R. Strachan , Michael C. Lawton
- 申请人： Helen Chen , Brian J. Avenell , Gordon R. Strachan , Michael C. Lawton
- 主分类号： H04B7/10
- IPC分类号： H04B7/10
摘要：
Systems and methods for receiving MIMO signals for testing and analyzing operation of MIMO communications devices. Examples of systems and/or methods for receiving MIMO signals include a measuring receiver with N RF paths consisting of N downconverters. Each downconverter achieves a frequency shift of the input MIMO signal equal to a shifting frequency of a first intermediate frequency (IF) plus a delta determined by the signal bandwidth multiplied by an integer number between 1 and N. The shifted N MIMO signals are combined to generate one combined analog MIMO signal. An analog to digital converter converts the combined analog MIMO signal to a stream of digital samples where the samples may be tested and analyzed with metrics on signals communicated in a MIMO environment. Example systems and method for receiving MIMO signals may also be implemented as a MIMO channel emulator such that samples generated by the ADC may be upconverted to output copies of the original signals to a receiver DUT, for example.
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