Algorithms for GPS operation indoors and downtown

Abstract.The proliferation of mobile devices and the emergence of wireless location-based services has generated consumer demand for availability of GPS in urban and indoor environments. This demand calls for enhanced GPS algorithms that accommodate high degrees of signal attenuation and multipath effects unique to the "urban channel." This paper overviews the market for location-based services and discusses algorithmic innovations that address challenges posed by urban environments.

[1]  Jari Syrjarinne.  Possibilities for GPS Time Recovery with GSM Network Assistance , 2000 .

[2]  P. W. Ward,et al.  GPS receiver search techniques , 1996, Proceedings of Position, Location and Navigation Symposium - PLANS '96.

[3]  小W·O·坎普.  Method for determining location of GPS receiver using estimated reference time , 1998 .

[4]  D. Akopian,et al.  A network aided iterated LS method for GPS positioning and time recovery without navigation message decoding , 2002, 2002 IEEE Position Location and Navigation Symposium (IEEE Cat. No.02CH37284).

[5]  A.J.R.M. Coenen,et al.  New Fast GPS code-acquisition technique using FFT , 1991 .

[6]  R. Grover Brown,et al.  A Baseline GPS RAIM Scheme and a Note on the Equivalence of Three RAIM Methods , 1992 .

[7]  James B. Y. Tsui,et al.  Fundamentals of global positioning system receivers : a software approach , 2004 .

[8]  M. Psiaki.  Block Acquisition of Weak GPS Signals in a Software Receiver , 2001 .

[9]  Per Enge,et al.  Foliage Attenuation For Land Mobile Users , 1996 .

[10]  D.M. Lin,et al.  A software GPS receiver for weak signals , 2001, 2001 IEEE MTT-S International Microwave Sympsoium Digest (Cat. No.01CH37157).

[11]  Lionel Garin,et al.  Strobe & Edge Correlator Multipath Mitigation for Code , 1996 .

[12]  Niilo Sirola.  Solving GPS Time and Position without Navigation Data , 2002 .

[13]  A. J. Van,et al.  Theory and Performance of Narrow Correlator Spacing in a GPS Receiver , 1992 .

[14]  Mark Moeglein,et al.  An Introduction to SnapTrack Server-Aided GPS Technology , 1998 .

[15]  Per Enge,et al.  Weighted RAIM for Precision Approach , 1995 .

[16]  Marvin K. Simon,et al.  Spread spectrum communications handbook (revised ed.) , 1994 .

[17]  Michael S. Braasch,et al.  GNSS Multipath Mitigation Using Gated and High Resolution Correlator Concepts , 1999 .

[18]  Bradford W. Parkinson,et al.  Autonomous GPS Integrity Monitoring Using the Pseudorange Residual , 1988 .

[19]  John N. Tsitsiklis,et al.  Introduction to linear optimization , 1997, Athena scientific optimization and computation series.

[20]  K. Radio,et al.  An Algebraic Solution of the GPS Equations , 1985 .

[21]  Lionel Garin,et al.  Enhanced Strobe Correlator Multipath Rejection for Code & Carrier , 1997 .

[22]  J Syrjarinne.  WIRELESS-ASSISTED GPS : KEEPING TIME WITH MOBILES , 2001 .

[23]  David M. Lin,et al.  Direct P(Y)-Code Acquisition Algorithm forSoftware GPS Receivers , 1999 .

[24]  M. Zhodzishsky,et al.  The Mitigation of Multipath Errors by Strobe Correlators in GPS/GLONASS Receivers , 1998, GPS Solutions.

[25]  John B. Moore,et al.  Hidden Markov Models: Estimation and Control , 1994 .

[26]  Mangesh M. Chansarkar,et al.  Multipath Corrections for a GPS Receiver , 1997 .

[27]  Per Enge,et al.  Fundamentals Of Signal Tracking Theory , 1996 .