GPS信号快速捕获方案中门限设定算法
DOI: 10.3969/j.issn.1006-7043.2009.11.016
Keywords: GPS接收机 快速捕获 虚警概率 发现概率 GPS receiver fast acquisition false alarm probability detection probability
Abstract:
针对GPS信号快速捕获方案中的门限计算复杂问题,采用聂孟-皮尔逊准则,以发现概率为性能指标,对基于非相干累加和相干累加相结合的GPS信号快速捕获算法的性能进行了详细的理论推导,给出了高低信噪比下通用的判决门限计算方法,并通过系统仿真对理论结果进行了验证.对实际情况中概率分布的合理近似使理论分析过程得以简化,使得判决门限的计算复杂度大大降低.
| [1] | 3. TSUI J B Y Fundamentals of global positioning system receivers:a software approach 2000
|
| [2] | 9. PROAKIS J G Digital Communications 2001
|
| [3] | 1. NUNES F D.LEITAO J M N A new fast code/frequency acquisition algorithm for GPS C/A signals 2003(10)
|
| [4] | 2. ALAQEELI A.STARZYK J.VAN GRAAS F Real-time acquisition and tracking for GPS receivers 2003(5)
|
| [5] | 4. PSIAKI M L Block acquisition of weak GPS signals in a software receiver 2001
|
| [6] | 5. LIN D M.TSUI J B Y A software GPS receiver for weak signals 2001
|
| [7] | 6. DAFFARA F.VINSON P Improved search algorithm for fast acquisition in a DSP-based GPS receiver 1998
|
| [8] | 7. WARD P W GPS receiver search techniques 1996
|
| [9] | 8. PARKINSON B W.SPILKER J J Global positioning system:theory and applications 1996
|
| [10] | 10. SERGEI Winitzki A handy approximation for the error function and its inverse 2008
|
Full-Text
