高精度GPS/BDS兼容接收机内部噪声检测方法研究
Interior Performance Test of High Precision GPS/BDS Compatible Receivers
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摘要: 北斗产品产业化步伐不断加快,针对用户高精度的应用需求,有必要研究有效的接收机性能检测方法检定北斗产品内部噪声。研究了检定高精度GPS/BDS兼容接收机内部噪声水平的方法,引入站间单差残差法检定接收机内部噪声水平,并用实测零基线数据验证了该方法的有效性。结果表明,零基线单差残差法可以直观地反映接收机内部噪声水平,更适用于混合星座的北斗系统。Abstract: As the pace of BeiDou Navigation Satellite System(BDS)product industrialization is accel-erating,research on the internal performance of BDS receiver is in great demand.This paper focuseson a method for internal noise levels in high-precision GPS/BDS compatible receivers.A single differ-ence residual method is introduced to test for internal noise based on measured data.Results showthat the single difference residual method can test for internal noise in GPS/BDS compatible receiverseffectively and is more applicable to BDS designed with hybrid constellations.
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