Abstract
A method is described for identifying simultaneous signals from different transmit antennas in multi-antenna sounders. Multiple orthogonal signals are produced from one pseudorandom code by using it to modulate RF carriers at pre-calculated offset frequencies. Although their frequency spectra are interleaved, the spectral lines from different transmitters are separable by Fourier transform at the receiver output. Since there is a one-to-one relationship between the length of the signal required for Fourier analysis and the number of orthogonal sounding signals, any arbitrary number of such signals can be generated, but Doppler spreads limit the number that can be employed with acceptable isolation among them.
| Original language | English |
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| Title of host publication | [Host publication title missing] |
| Publisher | IEEE - Institute of Electrical and Electronics Engineers Inc. |
| Pages | 179-181 |
| ISBN (Print) | 978-1-4244-1945-6 |
| DOIs | |
| Publication status | Published - 2008 |
| Externally published | Yes |
| Event | 24th Biennial Symposium on Communications (QBSC) - Kingston, ON, Canada Duration: 2008 Jun 24 → 2008 Jun 26 |
Conference
| Conference | 24th Biennial Symposium on Communications (QBSC) |
|---|---|
| Country/Territory | Canada |
| City | Kingston, ON |
| Period | 2008/06/24 → 2008/06/26 |
Subject classification (UKÄ)
- Electrical Engineering, Electronic Engineering, Information Engineering