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8 METHOD DIVIDING SATELLITE SIGNALS INTO EIGHT FREQUENCY POINTS FOR PROCESSING
8 METHOD DIVIDING SATELLITE SIGNALS INTO EIGHT FREQUENCY POINTS FOR PROCESSING
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机译:8种将卫星信号划分为八个频率点进行处理的方法
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摘要
A method for dividing into eight frequency channels for satellite signal processing includes: amplifying a satellite signal rved by an antenna (S1); Dividing the amplified satellite signal into radio frequency signals including a total of eight frequency channels by GPSL1, GPSL2, GPSL5, BDB1, BDB2, BDB3, GLNL1 and GLNL2 by a power divider circuit; The frequency synthesis processing is performed on the five signals GPSL2, GPSL5, BDB2, BDB3, and GLNL2, and a total of five frequencies mixed signals GPSL2, GPSL5, BDB2, BDB3, GLNL2 and three unmixed signals GPSL1, BDB1, GLNL1 Filtering (S3) radio frequency signals comprising eight radio frequency channels; And downconverting and A / D-converting the filtered eight frequency channel radio frequency signals, and outputting the signals to the baseband part for baseband signal processing (step S4). This method reduces power consumption and hardware size and cost.
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