Signal Acquisition for Software GPS Receiver
Chitrakant Singh1, Nitin Jain2
1Chitrakant Singh, Department of Electronics and Telecommunication Engineering, Chouksey Engineering College, Bilaspur (C.G.)
2Nitin Jain, Department of Electronics and Telecommunication Engineering, Chouksey Engineering College, Bilaspur (C.G.).
Manuscript received on July 01, 2012. | Revised Manuscript received on July 04, 2012. | Manuscript published on July 05, 2012. | PP: 480-482 | Volume-2, Issue-3, July 2012. | Retrieval Number: C0821062312 /2012©BEIESP
Open Access | Ethics and Policies | Cite
© The Authors. Published By: Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: This paper presents the signal acquisition scheme. Compared to conventional GPS receivers, this design provides flexibility and low cost for algorithm redesign and different IF frequency selection capability. Complete Digital Down Conversion from IF to baseband I/Q and acquisition scheme are implemented using various software IPs of System Generator (SysGen) tool in a single Field Programmable Gate Array (FPGA) virtex-5. With simulation results, it is proved that this approach performs reliable digital down conversion and acquisition for software GPS receiver
Keywords: GPS Receiver, DDC, FFT, Acquisition