1 / 6

Mathematics of Multipath Distortion

Mathematics of Multipath Distortion. Dr. A. J. Van Dierendonck AJ Systems. Multipath Effects. Composite Signal a = Relative multipath signal amplitude d = Multipath delay in seconds C f ( t ) = Pre-correlation filtered PN Code Filtered Autocorrelation Function. Composite Discriminators.

Leo
Télécharger la présentation

Mathematics of Multipath Distortion

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Mathematics of Multipath Distortion Dr. A. J. Van Dierendonck AJ Systems IMA

  2. Multipath Effects • Composite Signal • a = Relative multipath signal amplitude • d = Multipath delay in seconds • Cf(t) = Pre-correlation filtered PN Code • Filtered Autocorrelation Function IMA

  3. Composite Discriminators • Coherent DLL • Non-Coherent DLL (Dot Product) IMA

  4. Computing Multipath Error • Set the E(dtk) to zero; Solve (iteratively) for tk as a function of phase fm and multipath delay d • fm = 0°and 180° yields maximum error amplitude results (error envelope) IMA

  5. MULTIPATH ERROR ENVELOPES WITH 20 MHz BANDWIDTH • Non-Coherent Discriminator; a = 0.5 IMA

  6. MULTIPATH ERROR ENVELOPES WITH NARROWER BANDWIDTHS • Non-Coherent Discriminator; a = 0.5 IMA

More Related