Weak Signal Acquisition Algorithm of GPS Software Receiver Aided by INS

2013 ◽  
Author(s):  
Jingwei Ma ◽  
Lingjuan Miao ◽  
Xi Zhang ◽  
Zhifeng Gao
Keyword(s):  
Signal Acquisition ◽  
Weak Signal ◽  
Software Receiver

Weak signal acquisition method for GPS software receiver

2013 ◽  
Vol 32 (3) ◽  
pp. 816-818
Author(s):  
Shan LI ◽  
Qing-ming YI ◽  
Qing CHEN ◽  
Min SHI
Keyword(s):  
Signal Acquisition ◽  
Weak Signal ◽  
Software Receiver ◽  
Acquisition Method

scholarly journals Efficient BeiDou DBZP‐based weak signal acquisition scheme for software‐defined receiver

2018 ◽  
Vol 12 (6) ◽  
pp. 654-662 ◽  
Author(s):  
Qian Meng ◽  
Jian‐Ye Liu ◽  
Qing‐Hua Zeng ◽  
Shao‐Jun Feng ◽  
Rui Xu
Keyword(s):  
Signal Acquisition ◽  
Weak Signal ◽  
Acquisition Scheme

Extracting Ionosphere Scintillations Index Based on Single Frequency GPS Software Receiver

2012 ◽  
Vol 190-191 ◽  
pp. 1136-1143
Author(s):  
Zhi Huang ◽  
Hong Yuan ◽  
Qi Yao Zuo
Keyword(s):  
High Speed ◽  
Single Frequency ◽  
Scintillation Index ◽  
Ionospheric Scintillation ◽  
Signal Acquisition ◽  
Gps Receiver ◽  
Signal Loss ◽  
Software Receiver ◽  
Ionospheric Plasma Density ◽  
Gps Signal Acquisition

Scintillations are caused by ionospheric plasma-density irregularities and can lead to signal power fading, loss of lock of the carrier tracking loop in the GPS receiver. The traditional method of monitoring and mitigating scintillation is to transform commercial GPS receiver with modified hardware and embedded software. To better facilitate advance development GPS receiver under different condition, GPS software scintillation receiver is designed in this paper. The hardware scheme of high-speed GPS signal acquisition system is first discussed and implemented with FPGA and DSP architecture. Then, we describe receiver software processing algorithm, particularly the portion involving the scintillation signal acquisition and tracking, ionospheric scintillation index extracting and scintillation monitoring. The performance of software receiver is demonstrated under scintillation conditions. Relevant results show that software-receiver based approach can avoid weak signal loss and extract effectively ionospheric scintillation parameter compared with the traditional extracting method. Software receiver is suitable and reliable for the ionospheric scintillations monitoring, and can provide theoretical foundations and experimental preparations for future scintillation studies implemented with Chinese indigenous BeiDou-Ⅱ navigation and poisoning system.

scholarly journals GPS Civil Signal Self-Interference Mitigation During Weak Signal Acquisition

2007 ◽  
Vol 55 (12) ◽  
pp. 5859-5863 ◽  
Author(s):  
Yu T. Morton ◽  
Mikel Miller ◽  
James Tsui ◽  
David Lin ◽  
Qihou Zhou
Keyword(s):  
Interference Mitigation ◽  
Signal Acquisition ◽  
Weak Signal
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