| Paper: | SAM-P1.3 | ||
| Session: | Array Processing | ||
| Time: | Tuesday, May 18, 13:00 - 15:00 | ||
| Presentation: | Poster | ||
| Topic: | Sensor Array and Multichannel Signal Processing: Source localization, separation, classification, and tracking | ||
| Title: | DIRECT POSITION DETERMINATION OF MULTIPLE RADIO SIGNALS | ||
| Authors: | Alon Amar; Tel-Aviv University | ||
| Anthony J. Weiss; Tel-Aviv University | |||
| Abstract: | The most common methods for localization of radio signal emitters are based on measuring a specified parameter such as signal Angle-of-Arrival (AOA) or Time-of-Arrival (TOA). The measured parameters are then used to estimate the transmitter location. Since the measurements are done at each base station independently, without using the constraint that all AOA/TOA estimates must correspond to the same transmitter they are sub-optimal. Moreover, if the number of array elements at each base station is M the number of co-cannel simultaneous transmitters that can be localized is M-1.We propose a technique that uses exactly the same data as the common AOA/TOA methods but the position determination is direct. The proposed method can handle LM-1 co-channel simultaneous signals, using L base stations. Although there are many stray parameters only two-dimensional search is required for a planar geometry and a three-dimensional search for the general case. The technique exploits the principles of the MUSIC algorithm, and provides a natural solution to the measurements-sources association problem that is encountered in AOA/TOA based systems. | ||
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