Paper
24 December 2003 Design and implementation of a preamble-based burst mode CPM modem over Rayleigh fading channels
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Abstract
This paper discusses the design and implementation of a burst mode Continuous Phase Modulation (CPM) modem over flat, Rayleigh fading channels in the 220MHz frequency band. Our design focused on bandwidth efficiency while maintaining good synchronization performance and low complexity. The designed preamble is based on the combination of Minimum Shift Keying (MSK) signals and 3RC (Raised Cosine) signals. The use of MSK allows a closed form result for an initial Maximum Likelihood (ML) timing estimate. The 3RC signal, which has a better timing characteristic than MSK, is used to refine the timing and frequency estimates. The payload uses 3RC signals. Pilot symbol assisted modulation (PSAM) is used to assist channel estimation. The designed packet structure meets the Federal Communications Commission (FCC) frequency emission mask for 220MHz frequency band. A CPM modem using the designed packet structure has been implemented on the testbed and the simulation, bench test, and field test results are presented in this paper.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Gang Xiong, Oscar Y. Takeshita, Michael P. Fitz, and Weijun Zhu "Design and implementation of a preamble-based burst mode CPM modem over Rayleigh fading channels", Proc. SPIE 5205, Advanced Signal Processing Algorithms, Architectures, and Implementations XIII, (24 December 2003); https://doi.org/10.1117/12.506560
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Cited by 1 scholarly publication.
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KEYWORDS
Modulation

Demodulation

Phase shift keying

Doppler effect

Signal to noise ratio

Structural design

Binary data

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