CASES: A smart, compact GPS software receiver for space weather monitoring

A real-time software-defined GPS receiver for the L1 C/A and L2C codes has been developed as a low-cost space weather instrument for monitoring ionospheric scintillation and total electron content. The so-called CASES receiver implements several novel processing techniques not previously published that make it well suited for space weather monitoring: (A) a differencing technique for eliminating local clock effects, (B) an advanced triggering mechanism for determining the onset

[1]  Lambert Wanninger,et al.  Effects of equatorial ionosphere on GPS , 1993 .

[2]  M. Kayton,et al.  Global positioning system: signals, measurements, and performance [Book Review] , 2002, IEEE Aerospace and Electronic Systems Magazine.

[3]  Todd E Humphreys,et al.  Data-Driven Testbed for Evaluating GPS Carrier Tracking Loops in Ionospheric Scintillation , 2010, IEEE Transactions on Aerospace and Electronic Systems.

[4]  Theodore L. Beach,et al.  Perils of the GPS phase scintillation index (σϕ) , 2006 .

[5]  Todd E. Humphreys,et al.  CASES: A Novel Low-Cost Ground-based Dual-Frequency GPS Software Receiver and Space Weather Monitor , 2010 .

[6]  S. Skone,et al.  Limitations in GPS receiver tracking performance under ionospheric scintillation conditions , 2001 .

[7]  R. L. Leadabrand,et al.  Early results from the DNA Wideband satellite experiment—Complex‐signal scintillation , 1978 .

[8]  Bradford W. Parkinson,et al.  Global positioning system : theory and applications , 1996 .

[9]  A. J. Van Dierendonck,et al.  Ionospheric Scintillation Monitoring Using Commercial Single Frequency C/A Code Receivers , 1993 .

[10]  C. L. Rino,et al.  Coherence bandwidth loss in transionospheric radio propagation , 1980 .

[11]  Todd E. Humphreys,et al.  GPS Carrier Tracking Loop Performance in the presence of Ionospheric Scintillations , 2005 .

[12]  Todd E. Humphreys,et al.  Simulating Ionosphere-Induced Scintillation for Testing GPS Receiver Phase Tracking Loops , 2009, IEEE Journal of Selected Topics in Signal Processing.

[13]  Todd E. Humphreys,et al.  GNSS Receiver Implementation on a DSP: Status, Challenges, and Prospects , 2006 .

[14]  Todd E Humphreys,et al.  Modeling the Effects of Ionospheric Scintillation on GPS Carrier Phase Tracking , 2010, IEEE Transactions on Aerospace and Electronic Systems.

[15]  Todd E. Humphreys,et al.  Development and Field Testing of a DSP-Based Dual-Frequency Software GPS Receiver , 2009 .

[16]  Marvin K. Simon,et al.  Optimum Performance of Suppressed Carrier Receivers with Costas Loop Tracking , 1977, IEEE Trans. Commun..