Abstract
Encoding of communication signals compensates for phase distortions introduced by imperfect local oscillators, fading, and multipath effects. Differential encoding is generalized in this paper using a nonlinear transformation called multi-lag High-order Instantaneous Moment (ml-HIM). The ml-HIM decoder is capable of removing not only constant phase ambiguity, but also Doppler frequency, Doppler rate, and even higher-order phase distortions. The multiple lags present in the ml-HIM are exploited to improve system performance. Differential encoding is also generalized to non-constant modulus constellations such as M-ary QAM and AM-PM.
| Original language | English (US) |
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| Title of host publication | IEEE Signal Processing Workshop on Signal Processing Advances in Wireless Communications, SPAWC |
| Publisher | IEEE |
| Pages | 153-156 |
| Number of pages | 4 |
| State | Published - Dec 1 1997 |
| Event | Proceedings of the 1997 1st IEEE Signal Processing Workshop on Signal Processing Advances in Wireless Communications, SPAWC'97 - Paris, Fr Duration: Apr 16 1997 → Apr 18 1997 |
Other
| Other | Proceedings of the 1997 1st IEEE Signal Processing Workshop on Signal Processing Advances in Wireless Communications, SPAWC'97 |
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| City | Paris, Fr |
| Period | 4/16/97 → 4/18/97 |