Threshold detection performance of GMSK signal with BT=0.5

Lui, G.L.

doi:10.1109/milcom.1998.722181

Cited by 11 publications

(4 citation statements)

References 2 publications

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“…Recall that GSMK is inherently a differential modulation (a new phase is selected with respect to the phase achieved in the previous modulation period); therefore, in order to avoid differential demodulation on the receiver side, a feedforward differential encoder, called the precoder, is applied in front of the GMSK modulator. Therefore, on the receiver side, the information symbols are detected on the basis of alternative switching of the in-phase and quadrature components [14].…”

Section: Selection Of Modulation Schemementioning

confidence: 99%

A Low-Cost High-Throughput C-Band Communication System for CubeSats

Krenz,

Sroka,

Sybis

et al. 2023

Electronics

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This paper presents the physical layer of a proprietary broadband communication system for CubeSats. The system operates in the C band (5.8 GHz), delivering at least 10 Mbps of the net user throughput. Operation at low elevation angles (and therefore low SNRs) and high Doppler shifts is made possible thanks to a sophisticated synchronization subsystem. The system can be adapted to propagation conditions experienced during a given visibility window by changing the signal bandwidth and coding rate. It is implemented using Software Defined Radio (SDR) technology. The system will be used in two missions that are scheduled for 2023 and 2024 and are planned in cooperation with the National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute” and SatRev S.A.

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Section: Selection Of Modulation Schemementioning

confidence: 99%

A Low-Cost High-Throughput C-Band Communication System for CubeSats

Krenz,

Sroka,

Sybis

et al. 2023

Electronics

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“…However, there is a performance loss due to differential detection. This loss can be eliminated by a data precoding algorithm applied to the non-return-to-zero (NRZ) source data symbols prior to BCPM0.5 modulation [15]. The precoding scheme is described briefly as follows.…”

Section: Code Design Based On Laurent Decompositionmentioning

confidence: 99%

Simplified receiver design for STBC binary continuous phase modulation

Liu

Punnoose²,

Liu

2008

IEEE Trans. Wireless Commun.

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Existing space-time codes have focused on multipleantenna systems with linear modulation schemes such as phaseshift keying and quadrature amplitude modulation. Continuous phase modulation (CPM) is an attractive scheme for digital transmission because of its constant envelope which is needed for power efficient transmitters. Recent research has shown that space-time coded CPM can achieve transmit diversity to improve performance while maintaining the compact spectrum of CPM signals. However, these efforts mainly combine spacetime coding (STC) with CPM to achieve spatial diversity at the cost of a high decoding complexity. In this paper, we design space-time block codes (STBC) for binary CPM with modulation index h = 1/2 and derive low-complexity receivers for these systems. The proposed scheme has a much lower decoding complexity than STC CPM with the Viterbi decoder and still achieves near-optimum error performances.

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“…In this approach, the phase estimator works jointly with the turbo decoder, utilizing the soft extrinsic information from the turbo decoder in every decoding iteration to improve the phase estimate. Therefore, we propose a scheme in this paper to adapt this technique to CCSDS turbo codes [4] with pre-coded Gaussian minimum shift keying (GMSK) modulation [5], as specified in CCSDS standards [6,7], requiring very little additional computational complexity.…”

Section: Introductionmentioning

confidence: 99%

Carrier phase recovery for turbo‐coded systems with pre‐coded GMSK modulation

Zhou

Burr

2008

Satell Commun Network

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SUMMARYA carrier phase recovery scheme suited for turbo-coded systems with pre-coded Gaussian minimum shift keying (GMSK) modulation is proposed and evaluated in terms of bit-error-rate (BER) performance. This scheme involves utilizing the extrinsic information obtained from the turbo-decoder to aid an iterative carrier phase estimation process, based on a maximum-likelihood (ML) strategy. The phase estimator works jointly with the turbo-decoder, using the updated extrinsic information from the turbo-decoder in every iterative decoding. A pre-coder is used to remove the inherent differential encoding of the GMSK modulation. Two bandwidths of GMSK signals are considered: BT 5 0.5 and 0.25, which are recommended by the European Cooperation for Space Standardization (ECSS). It is shown that the performance of this technique is quite close to the perfect synchronized system within a wide range of phase errors. This technique is further developed to recover nearly any phase error in [Àp,1p] by increasing the number of phase estimators and joint decoding units. This, however, will increase the complexity of the system.

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Threshold detection performance of GMSK signal with BT=0.5

Cited by 11 publications

References 2 publications

A Low-Cost High-Throughput C-Band Communication System for CubeSats

A Low-Cost High-Throughput C-Band Communication System for CubeSats

Simplified receiver design for STBC binary continuous phase modulation

Carrier phase recovery for turbo‐coded systems with pre‐coded GMSK modulation

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