1. August 16, 2000IMA1 Mathematics of Multipath Distortion Dr. A. J. Van Dierendonck AJ Systems

2. August 16, 2000IMA2 Multipath Effects Composite Signal  = Relative multipath signal amplitude  = Multipath delay in seconds C f (t) = Pre-correlation filtered PN Code Filtered Autocorrelation Function

3. August 16, 2000IMA3 Composite Discriminators Coherent DLL Non-Coherent DLL (Dot Product)

4. August 16, 2000IMA4 Computing Multipath Error Set the E(d  k ) to zero; Solve (iteratively) for  k as a function of phase  m and multipath delay   m = 0° and 180° yields maximum error amplitude results (error envelope)

5. August 16, 2000IMA5 MULTIPATH ERROR ENVELOPES WITH 20 MHz BANDWIDTH Non-Coherent Discriminator;  = 0.5

6. August 16, 2000IMA6 MULTIPATH ERROR ENVELOPES WITH NARROWER BANDWIDTHS Non-Coherent Discriminator;  = 0.5