%0 Journal Article %1 Jovancevic2005 %A Jovancevic, A. %A Bhatia, N. %A Noronha, J. %A Brown, A. %A Ganguly, S. %D 2005 %J Proc. of the 18th ION GNSS Conf. %K GPS, satnav softwareRadio, softwareReceiver %P 223-233 %T GPS Modernization Using Flexible Software Receiver %X Keeping pace with rapid developments in electronics is a hallmark of modernization. The demanding requirements need to be met with superior performance, flexible architecture immune to obsolescence and a rapid development cycle. Software digital receivers provide this flexibility, performance, adaptability to various signals and scenarios, and at the same time ensure vertical growth. The open architecture software GPS receiver platform developed at CRS, Inc. offers the modular design capabilities that allow easy and efficient integration of various advanced signal processing techniques with the conventional GPS receiver blocks. By using a one-step process for design, simulation, testing and final implementation, the software receiver platform significantly reduces the development time for advanced architectures. This architecture can either be used for non-real time applications on a host machine, or can be coupled with multi-processor architecture comprising of FPGA, DSP and embedded processors for real-time operations. It provides a reconfigurable solution capable of incorporating new design concepts. The receiver platform has been used to implement a variety of advanced navigation systems. We have demonstrated the real-time receiver capabilities of various modernized signals (M-code, L2C, L5, Galileo) and they’re applications for anti-jam applications, high dynamics, multipath mitigation and various other requirements. Novel architectures suitable for flexible implementation have been developed and demonstrated. In this paper we describe the implementation of some of these applications particularly those employing various anti-jam techniques under high dynamic conditions for jammer detection and mitigation in the GPS band. The results presented in this paper describe the effectiveness of these algorithms in achieving superior SNR performance compared to the conventional receiver. The software receiver approach provides the flexibility to combat the modern battlefield scenario and an easy and effective way of simulating, testing and implementing these techniques in modern receivers.

@article{Jovancevic2005, abstract = {Keeping pace with rapid developments in electronics is a hallmark of modernization. The demanding requirements need to be met with superior performance, flexible architecture immune to obsolescence and a rapid development cycle. Software digital receivers provide this flexibility, performance, adaptability to various signals and scenarios, and at the same time ensure vertical growth. The open architecture software GPS receiver platform developed at CRS, Inc. offers the modular design capabilities that allow easy and efficient integration of various advanced signal processing techniques with the conventional GPS receiver blocks. By using a one-step process for design, simulation, testing and final implementation, the software receiver platform significantly reduces the development time for advanced architectures. This architecture can either be used for non-real time applications on a host machine, or can be coupled with multi-processor architecture comprising of FPGA, DSP and embedded processors for real-time operations. It provides a reconfigurable solution capable of incorporating new design concepts. The receiver platform has been used to implement a variety of advanced navigation systems. We have demonstrated the real-time receiver capabilities of various modernized signals (M-code, L2C, L5, Galileo) and they’re applications for anti-jam applications, high dynamics, multipath mitigation and various other requirements. Novel architectures suitable for flexible implementation have been developed and demonstrated. In this paper we describe the implementation of some of these applications particularly those employing various anti-jam techniques under high dynamic conditions for jammer detection and mitigation in the GPS band. The results presented in this paper describe the effectiveness of these algorithms in achieving superior SNR performance compared to the conventional receiver. The software receiver approach provides the flexibility to combat the modern battlefield scenario and an easy and effective way of simulating, testing and implementing these techniques in modern receivers.}, added-at = {2011-05-30T10:41:10.000+0200}, author = {Jovancevic, A. and Bhatia, N. and Noronha, J. and Brown, A. and Ganguly, S.}, biburl = {https://www.bibsonomy.org/bibtex/25a2900259dd13e46f7013fb28cc4088b/bmuth}, groups = {private}, interhash = {08118baa2c34c0c342d175470ec99fc1}, intrahash = {5a2900259dd13e46f7013fb28cc4088b}, journal = {Proc. of the 18th ION GNSS Conf.}, keywords = {GPS, satnav softwareRadio, softwareReceiver}, month = {September}, owner = {bmuth}, pages = {223-233}, timestamp = {2014-08-11T22:37:44.000+0200}, title = {{GPS Modernization Using Flexible Software Receiver}}, username = {bmuth}, year = 2005 }