1 / 5

Detection of Interference Signals in L1 GPS Band

Detection of Interference Signals in L1 GPS Band. Beatrice Motella. The hard work of the receiver. CDMA structure. GPS and Galileo coexistence. Ionosphere effect. robust system. Doppler. Multipath. …but…. rx Power = -160 dBW. Urban canyon. Secondary Harmonics. Interference. WLAN.

quentin-hahn
Download Presentation

Detection of Interference Signals in L1 GPS Band

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. Detection of Interference Signals in L1 GPS Band Beatrice Motella School of Surveying & Spatial Information Systems The University of New South Wales, Australia

  2. The hard work of the receiver CDMA structure GPS and Galileo coexistence Ionosphere effect robust system Doppler Multipath …but… rx Power = -160 dBW Urban canyon Secondary Harmonics Interference WLAN vulnerable system UWB Beatrice Motella

  3. Interference Signals Over GNSS bands Beatrice Motella

  4. Interference Monitoring 1) DETECTION 2) CHARACTERIZATION 3) LOCALIZATION 4) MITIGATION Find out if there some external sources in the received signal Find out the direction the interference source comes from Find out the characteristics of the undesired signal Delete or smooth the effects of the presence of the interference Beatrice Motella

  5. Data Collection in Turin: TV and DVB-T Transmitters Anomalous interference signals appear at the front end output spectrum. Turin Note the decreased magitude of the specrum in presence of interference. This is likely due to the different AGC gain in the two data collections Beatrice Motella

More Related