| Analysis of the Chip Waveforms for LPI Communication |
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Jun-Ho Maing1, Heung-Gyoon Ryu2, Dae-Il Lee3 |
1Dept. of Electronic Engineering and Research Institute of Computer, Information ＆ Communication, Chungbuk National University
2Dept. of Electronic Engineering and Research Institute of Computer, Information ＆ Communication, Chungbuk National Universit
3Satellite System Department, 4th Development Center, Agency for Defense Development |
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| Abstract |
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DAM(Delay-And-Multiplier) intercept receiver usually detects the symbol rate of the transmitted DS spread spectrum signal for the feature extraction. It is important for secure communication to reduce the normalized output signal-to-noise ratio that is generated at the DAM intercept receiver as a measure of detectability. In this paper, several kinds of chip waveforms are novelly analyzed for LPI(Low-Probability of Intercept) communication against DAM intercept receiver. Consequently, it is shown that the rectangular chip waveform shows the best LPI performance in the bandwidth of 2/$T_c$TEX>, 4/$T_c$TEX>, and 6/$T_c$TEX>/. Except the rectangular waveform, kaiser chip waveform show better LPI performance than the other waveforms in the bandwidth of 4/$T_c$TEX> and 6/$T_c$TEX> |
| Key words:
LPI(Low-Probability of Intercept), Symbol Rate Line, Chip Waveform and DAM(Delay-And-Multiplier) Receiver |
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