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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Jensen, M.A. Anderson, A.L. |
| Copyright Year | 2003 |
| Description | Author affiliation: Dept. of Electr. & Comput. Eng., Brigham Young Univ., Provo, UT, USA (Jensen, M.A.; Anderson, A.L.) |
| Abstract | One problem encountered in aeronautical telemetry is that during aircraft maneuvering, the transmission path is often obstructed by the air vehicle. Therefore, a second antenna is commonly placed on the aircraft to ensure a clear transmission path for all attitudes. However, when both antennas are in view of the receiver, this leads to an array interference pattern generally characterized by a large number of transmission nulls. Orthogonal transmit diversity schemes (space-time codes) can be used to overcome this interference without requiring additional bandwidth and with relatively straightforward implementation. In this paper, we illustrate how the Alamouti [see IEEE J. selected areas in communications, vol 16, p 1451-58, Oct 1998] and unitary differential space-time codes [see B. Hughes, IEEE Trans. information theory, vol 46, p 2567-78, Nov 2000] can be used for this application. Our transfer functions are equal to the SNR of a single antenna transmission system. Therefore this Alamouti scheme can completely remove the detrimental effects of the coherent interference created by the introduction of multiple antennas. |
| Sponsorship | Inst. of Elec. Eng., Japan IEEE |
| Starting Page | 302 |
| Ending Page | 303 |
| File Size | 124561 |
| Page Count | 2 |
| File Format | |
| ISBN | 0780381963 |
| DOI | 10.1109/WCT.2003.1321532 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2003-10-15 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Transmitting antennas Space time codes Receiving antennas Interference Bandwidth Telemetry Aircraft Vehicles Antenna arrays Information theory |
| Content Type | Text |
| Resource Type | Article |
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