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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Iinatti, J. Leppanen, P. |
| Copyright Year | 1993 |
| Description | Author affiliation: Telecommun. Lab., Oulu Univ., Finland (Iinatti, J.; Leppanen, P.) |
| Abstract | This paper introduces the analysis and simulation results of a DS spread spectrum system in which the principle of matched filter synchronization for acquisition of code synchronization is used. Mean acquisition time approximations of coherent matched filter synchronization in AWGN-channel, continuous and pulsed tone jamming, when complementary codes are used as the spreading codes, are indicated. The idea of using median type filtering as an aiding device for the matched filter is tested in those situations. It is shown that the performance degradation in AWGN-channel is not catastrophic due to use of the median filter. Continuous and pulsed tone jamming can have a very dramatic influence on mean acquisition time if the imbalances of the codes have large values. The influence of continuous tone jamming can be totally eliminated by using a median filter. Pulsed tone jamming can be eliminated almost totally, if jamming is pulsed so that it is on during some whole code periods. Simulations show that the jamming can be eliminated even if the jamming is pulsed in a way that it is on during some chips within every code period. |
| Starting Page | 779 |
| Ending Page | 783 |
| File Size | 475925 |
| Page Count | 5 |
| File Format | |
| ISBN | 0780309537 |
| DOI | 10.1109/MILCOM.1993.408713 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1993-10-11 |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Matched filters Jamming Analytical models Spread spectrum communication Filtering Testing Degradation Signal generators Passive filters Autocorrelation |
| Content Type | Text |
| Resource Type | Article |
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