A Novel Demodulation Method for CPM Signals in Satellite Communications
Abstract
This article focuses on the demodulation of Continuous Phase Modulation (CPM) signals in satellite communications. From the perspective of simplifying the grid state, it discusses three demodulation methods: Maximum Likelihood Sequence Detection, Per-Survivor Processing algorithm, and Virtual Indexes(h) Detection. The article also proposes a Soft Virtual Indexes(h) Detection based on the Virtual Indexes(h) Detection, which reduces the complexity of demodulation while minimizing performance loss. Simulation results show that the Maximum Likelihood Sequence Detection algorithm has the best performance but the highest complexity. The Virtual Indexes(h) Detection algorithm achieves a reduction in demodulation complexity at the cost of performance. The Soft Virtual Indexes(h) Detection algorithm, on the other hand, offers a compromise between the Maximum Likelihood Sequence Detection and Virtual Indexes(h) Detection algorithm, improving the demodulation performance of the latter while reducing complexity compared to Maximum Likelihood Sequence Detection.
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Index Terms
- A Novel Demodulation Method for CPM Signals in Satellite Communications
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Published In
November 2023
237 pages
ISBN:9798400709272
DOI:10.1145/3638682
Copyright © 2023 ACM.
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Publication History
Published: 22 May 2024
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VSIP 2023
VSIP 2023: 2023 the 5th International Conference on Video, Signal and Image Processing
November 24 - 26, 2023
Harbin, China
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