Geolocation of MIMO Signals Using the Cross Ambiguity Function and TDOA/FDOA

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Provided by: Virginia Systems
Topic: Mobility
Format: PDF
The geolocation of RF signals has many civilian and military applications. One technique for geolocation involves using the Cross Ambiguity Function (CAF) to calculate the Time Difference-Of-Arrival (TDOA) and Frequency-Difference-Of-Arrival (FDOA) of the emitted signal using two receivers. Until recently most RF signals fell under the category of Single-Input-Single-Output (SISO). Now however, Multiple-Input-Multiple-Output (MIMO) technologies such as Wi-Fi's IEEE 802.11n are becoming more ubiquitous. The inherent use of multiple antennas in MIMO technologies has an effect on the geolocation of these signals.
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