UWB_DSSS资料分享

francisy

【文件名】:0696@52RD_UWB_DSSS.rar
【格　式】:rar
【大　小】:43K
【简　介】:It has been suggested1 that an appropriate figure of merit for a low probability of intercept and detection (LPI/D) waveform is the quantity “Range x Bandwidth / Joule”. That is, the further the range, the wider the bandwidth and the less amount of energy used to achieve these values, the more covert is the resultant communications system.Since the received signal strength from a point source varies as R-2 for line-of-sight (LOS) communications and as R-4 for mobile communications (due to multipath cancellation), it is
perhaps more mathematically appropriate to consider the “figure of merit” as the ratio
【目　录】:
1. Introduction
2. Ultra Wideband Waveforms
3. Spread Spectrum Waveforms
4. LPI/D Figure of Merit Comparisons
5. Conclusions