GPS World, February 2012
Personal Navigation COVER STORY FIGURE 1 Signal geometry of GNSS satellites in an urban canyon aerial perspective No direct signal received user is here FIGURE 2 Direct signal received user is here Direct signal received user is here No direct signal received user is here FIGURE 2 The shadow matching concept using direct signal reception to localize position Shadow Matching Algorithm www gpsworld com February 2012 GPS World 15
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