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| 引用本文： | 孙福余,张鹏,徐亚明,沈智娟.GPS������ջ��뻷�������о�[J].大地测量与地球动力学,2012,32(4):144-147. |
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| 作者姓名： | 孙福余 张鹏 徐亚明 沈智娟 |
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| 作者单位： | 1. 武汉大学测绘学院,武汉,430079
2. 武汉大学测绘学院,武汉430079;精密工程测量和工业测量国家测绘局重点实验室,武汉430079 |
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| 基金项目： | 国家自然科学基金(41074025);高等学校博士学科点专项科研基金(20110141120046);精密工程与工业测量国家测绘地理信息局重点实验室开放基金(PF2011-3) |
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| 摘 要： | ???????????????????????????????????????????????????????????????????????????????????????????????????????????÷??????????????????????β??????????????????????????????????????????????????
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| 关 键 词： | GPS???????? ????????????? ?????????????? ?????????? ?? |
RESEARCH ON DLL DISCRIMINATOR OF GPS SOFTWARE RECEIVER |
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| Sun Fuyu
,
Zhang Peng
,
Xu Yaming
,
Shen Zhijuan.RESEARCH ON DLL DISCRIMINATOR OF GPS SOFTWARE RECEIVER[J].Journal of Geodesy and Geodynamics,2012,32(4):144-147. |
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| Authors: | Sun Fuyu Zhang Peng Xu Yaming Shen Zhijuan |
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| Institution: | 1) 1)School of Geodesy and Geomatics,Wuhan University.Wuhan 4300792) The Key Laboratory of Precise Engineering and Industry Surveying,State Bureau of Surveying and Mapping,Wuhan 430079 |
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| Abstract: | The tracking performances of three discriminator functions based on Delay Lock Loop(DLL) were studied: Early Minus Late Power(EML Power),Early Minus Late Envelope(EML Envelope) and Dot Power(DOT).A new mode that shifting discriminator function based on the tracking state is proposed to improve the performance of tracking loop.The experimental results tested by actual IF data show modified discriminator tracking signal effectively. |
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| Keywords: | GPS software receiver EML Power EML Envelope Dot Power mode |
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