Relevant bibliographies by topics / Continuous Phase Modulations

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Continuous Phase Modulations'

Author: Grafiati
Published: 17 May 2025
Last updated: 13 July 2025

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Journal articles on the topic "Continuous Phase Modulations"

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Barbieri, Alan, Dario Fertonani, and Giulio Colavolpe. "Spectrally-efficient continuous phase modulations." IEEE Transactions on Wireless Communications 8, no. 3 (2009): 1564–72. http://dx.doi.org/10.1109/twc.2009.080679.

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Yuan, Yabo, Peng Zhao, Bo Wang, and Bin Wu. "Hybrid Maximum Likelihood Modulation Classification for Continuous Phase Modulations." IEEE Communications Letters 20, no. 3 (2016): 450–53. http://dx.doi.org/10.1109/lcomm.2016.2517007.

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Messai, Malek, Giulio Colavolpe, Karine Amis, and Frederic Guilloud. "Binary Continuous Phase Modulations Robust to a Modulation Index Mismatch." IEEE Transactions on Communications 63, no. 11 (2015): 4267–75. http://dx.doi.org/10.1109/tcomm.2015.2478819.

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Colavolpe, G., and R. Raheli. "Noncoherent sequence detection of continuous phase modulations." IEEE Transactions on Communications 47, no. 9 (1999): 1303–7. http://dx.doi.org/10.1109/26.789664.

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Campo-Valera, María, and Ivan Felis. "Underwater Acoustic Communication for The Marine Environment’s Monitoring." Proceedings 42, no. 1 (2019): 51. http://dx.doi.org/10.3390/ecsa-6-06642.

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Within the possibilities of non-linear acoustics, the parametric effect offers a range of acoustic applications that are currently being exploited in different areas. In underwater acoustics, environmental monitoring and security are one of the applications that can benefit from these technologies, allowing the transmission of information in a directivity controlled and efficient manner. An essential aspect for the optimal functioning of these technologies is the choice of the modulation that best suits the needs of communication. In the present work, different modulation techniques are explained, through their non-linear propagation, that allows generating the signals to be propagated. Among the modulations presented in this work, we have Amplitude Modulation (AM), Continuous Phase Frequency Shift Keying (CPFSK), and Linear Frequency Modulation (LFM) modulations normally used in communications. These modulations are performed with a modulating signal (sine and sine-sweeps type) whose non-linear demodulation determines the shape of the 1 and 0 bits, through the transmission of a bit string. With all this, comparisons are made between each technique, to obtain a more precise detection and discrimination of the bits.
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Simmons, S., and P. McLane. "Low Complexity Carrier Phase Tracking Decoders for Continuous Phase Modulations." IEEE Transactions on Communications 33, no. 12 (1985): 1285–90. http://dx.doi.org/10.1109/tcom.1985.1096252.

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Bianchi, P., P. Loubaton, and F. Sirven. "Non Data-Aided Estimation of the Modulation Index of Continuous Phase Modulations." IEEE Transactions on Signal Processing 52, no. 10 (2004): 2847–61. http://dx.doi.org/10.1109/tsp.2004.832023.

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Abdulkarem, Ahmed Mohammed, Firas Abedi, Hayder M. A. Ghanimi, et al. "Robust Automatic Modulation Classification Using Convolutional Deep Neural Network Based on Scalogram Information." Computers 11, no. 11 (2022): 162. http://dx.doi.org/10.3390/computers11110162.

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This study proposed a two-stage method, which combines a convolutional neural network (CNN) with the continuous wavelet transform (CWT) for multiclass modulation classification. The modulation signals’ time-frequency information was first extracted using CWT as a data source. The convolutional neural network was fed input from 2D pictures. The second step included feeding the proposed algorithm the 2D time-frequency information it had obtained in order to classify the different kinds of modulations. Six different types of modulations, including amplitude-shift keying (ASK), phase-shift keying (PSK), frequency-shift keying (FSK), quadrature amplitude-shift keying (QASK), quadrature phase-shift keying (QPSK), and quadrature frequency-shift keying (QFSK), are automatically recognized using a new digital modulation classification model between 0 and 25 dB SNRs. Modulation types are used in satellite communication, underwater communication, and military communication. In comparison with earlier research, the recommended convolutional neural network learning model performs better in the presence of varying noise levels.
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Wales, S. W. "Performance of continuous phase modulations in presence of cochannel interference." Electronics Letters 24, no. 3 (1988): 185. http://dx.doi.org/10.1049/el:19880123.

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Pancaldi, F., and G. M. Vitetta. "Equalization algorithms in the frequency domain for continuous phase modulations." IEEE Transactions on Communications 54, no. 4 (2006): 648–58. http://dx.doi.org/10.1109/tcomm.2006.873073.

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Dissertations / Theses on the topic "Continuous Phase Modulations"

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Benaddi, Tarik. "Sparse graph-based coding schemes for continuous phase modulations." Phd thesis, Toulouse, INPT, 2015. http://oatao.univ-toulouse.fr/16037/1/Benaddi_Tarik.pdf.

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The use of the continuous phase modulation (CPM) is interesting when the channel represents a strong non-linearity and in the case of limited spectral support; particularly for the uplink, where the satellite holds an amplifier per carrier, and for downlinks where the terminal equipment works very close to the saturation region. Numerous studies have been conducted on this issue but the proposed solutions use iterative CPM demodulation/decoding concatenated with convolutional or block error correcting codes. The use of LDPC codes has not yet been introduced. Particularly, no works, to our knowledge, have been done on the optimization of sparse graph-based codes adapted for the context described here. In this study, we propose to perform the asymptotic analysis and the design of turbo-CPM systems based on the optimization of sparse graph-based codes. Moreover, an analysis on the corresponding receiver will be done.
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Damodaran, Kanagaraj. "Spectrally Efficient Concatenated Convolutional Codes with Continuous Phase Modulations." International Foundation for Telemetering, 2008. http://hdl.handle.net/10150/606239.

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ITC/USA 2008 Conference Proceedings / The Forty-Fourth Annual International Telemetering Conference and Technical Exhibition / October 27-30, 2008 / Town and Country Resort & Convention Center, San Diego, California<br>We develop bandwidth-efficient serially concatenated coded (SCC) continuous phasemodulation (CPM) techniques for aeronautical telemetry. The concatenated code consists of an inner and an outer code, separated by an interleaver, and is decoded using relatively simple near-optimum iterative decoding algorithms. CPM waveforms such as shaped-offset quadrature phase shift keying (SOQPSK) and pulse code modulation/ frequency modulation (PCM/FM), which are currently used in military satellite and aeronautical telemetry standards, can be viewed as inner codes due to their recursive nature. For the outer codes, we apply serially concatenated convolutional codes (SCCC) because of their large coding gains, high coding rates, and because their decoding algorithms are readily implemented. High-rate codes are of special interest in aeronautical telemetry applications due to recent reductions in available spectrum and ever-increasing demands on data rates. We evaluate the proposed coding schemes with a large set of numerical simulation results and make a number of recommendations based on these results.
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Kumaraswamy, Dileep. "ON REDUCED COMPLEXITY TECHNIQUES FOR BANDWIDTH EFFICIENT CONTINUOUS PHASE MODULATIONS IN SERIALLY CONCATENATED CODED SYSTEMS." International Foundation for Telemetering, 2007. http://hdl.handle.net/10150/604543.

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ITC/USA 2007 Conference Proceedings / The Forty-Third Annual International Telemetering Conference and Technical Exhibition / October 22-25, 2007 / Riviera Hotel & Convention Center, Las Vegas, Nevada<br>Serially concatenated coded (SCC) systems with continuous phase modulations (CPMs) as recursive inner codes have been known to give very high coding gains at low operative signal to noise ratios (SNRs). Moreover, concatenated coded systems with iterative decoding approach the bit error rate (BER) bounds given by the maximum likelihood (ML) criterion. Although SCC systems by themselves are reduced complexity systems when compared to the ML decoding, when very highly bandwidth efficient CPMs such as pulse code modulation /frequency modulation (PCM/FM) is used [1], they present a problem of extremely high decoding complexity at the receiver. The complexity of a CPM is described by the size of its trellis which is a function of the modulation index, the cardinality of the source alphabet and the length of the frequency pulse used. The surveyed complexity reduction techniques adopt approximations which will reduce the size of the trellis with minimal expense of power. In this paper, we present reduced complexity approaches to sub-optimally decode SCC PCM/FM by mainly two approaches - 1) Frequency pulse truncation. 2) Decision feedback.
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Othman, Rami. "Study of reception techniques for aeronautical telemetry modulations." Thesis, CentraleSupélec, 2019. http://www.theses.fr/2019CSUP0012.

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La télémesure aéronautique est un système utilisé pendant la phase des essais en vol qui consiste à transmettre en temps-réel les données mesurées à bord de l'avion vers une station sol par le biais d'une liaison radiofréquence. Elle est une opération critique visant à surveiller le comportement de l’avion et à garantir la sécurité du pilote. La conception et les performances des émetteurs et des récepteurs ont été améliorées au fil des années mais tout en gardant la même famille de modulation utilisée pour transmettre les données. Ces données sont modulées par une modulation à phase continue (CPM) car cette dernière possède une enveloppe complexe constante, ce qui permet l’emploi des amplificateurs de puissance dans leur régime de saturation sans distordre le signal. Cependant, contrairement aux modulations classiques, la modulation CPM n’est pas une fonction linéaire des symboles transmis, ce qui rend la tâche de la démodulation complexe surtout quand on considère des scenarii assez compliqués tels que la présence des multi trajets ou bien l’emploi d’un système multi-antennes. Dans cette thèse, on se focalise sur une modulation appelée « Shaped Offset Quadrature Phase Shift Keying telemetry group » (SOQPSK-TG) qui commence à être de plus en plus populaire en télémesure aéronautique. Cette modulation appartient à une famille particulière de CPM car elle transmet des symboles ternaires au lieu de binaires. Dans ce travail, nous développons différents algorithmes de réception pour cette modulation en considérant différents scenarii afin de garantir un lien de télémesure permanent. Les solutions proposées offrent des performances attrayantes tout en gardant une complexité raisonnable pour une implémentation en temps-réel<br>Aeronautical telemetry is a system used during the flight testing phase to monitor the behaviour of the plane by transmitting in real-time the aircraft dynamics from the aircraft to the ground station over a radio-frequency link. It is a critical process that requires highly reliable systems to ensure the pilot's safety. The design and the performance of the transmitting/ receiving equipment have been progressively upgraded over the years, and they mainly rely on continuous phase modulations (CPM) to convey the data. CPM is transmitter friendly because it has a constant complex envelope and therefore power amplifiers can be used at their saturation mode without distorting the signal. However, due to the nonlinear nature of this modulation, it can make the demodulation a hard task especially when considering complex scenarios such as the presence of multipath or the use of multiple antenna transmitters. In this PhD thesis, we focus on shaped offset quadrature phase-shift keying telemetry group (SOQPSK-TG) whose use is getting more and more popular in aeronautical. This modulation belongs to a particular CPM family since it transmits ternary symbols instead of binary ones. In this work, several reception algorithms have been developed for this modulation under different scenarios to ensure the availability of aeronautical telemetry link. These solutions offer excellent power efficiency without prohibitive complexity
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Desombre, Paul. "Couche physique pour les communications sous-TeraHertz." Electronic Thesis or Diss., CentraleSupélec, 2024. http://www.theses.fr/2024CSUP0012.

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Dans cette thèse nous étudions une nouvelle mise en œuvre des communications sous-THz ([90 - 300] GHz de fréquence porteuse) utilisant la technologie photonique pour la génération de fréquence porteuse. Cette étude s'inscrit dans le projet WASSAP, qui a pour but de doter à la région Bretagne un démonstrateur de communications sous-THz performant : très haut débit (de plusieurs Gbits/s à plusieurs dizaines de Gbits/s) et longues portées (plusieurs km de portées de communications sont théorisés). Dans un premier temps, les enjeux et verrous technologiques des communications sous-THz sont expliqués. Ensuite, les modulations numériques que nous avons considérées dans ce projet sont détaillées puis comparées entre elles dans un environnement de simulations prenant en compte le bruit de phase induit par les générateurs de fréquences. Cinq modulations sont sélectionnées selon leurs performances. Suite à cela, les non-linéarités optiques subies par le signal sont étudiées et un modèle numérique de simulation est proposé. Ce modèle est utilisé pour quantifier les effets des non-linéarités sur les cinq modulations sélectionnées. Nous montrons que les CPM sont invulnérables à ces effets. Ensuite, nous nous servons de ce modèle conjointement à un bilan de liaison sous-THz pour étudier la faisabilité des communications longues portées avec les CPM. Finalement, une preuve de concept est donnée, où les cinq modulations considérées sont testées dans un environnement expérimental<br>This thesis studies a new implementation of sub-THz communications ([90 - 300] GHz) using photonic technology for carrier frequency generation. This study is part of the WASSAP project, which aims to provide the Brittany region with a high-performance sub-THz communications demonstrator: very high data rates (from several Gbits/s to several tens of Gbits/s) and long ranges (several km of communications ranges are theorized). First, the challenges and technological obstacles of sub-THz communications are explained. Then, the digital modulations we have considered in this project are detailed and compared in a simulation environment that considers the phase noise induced by frequency generators. Five modulations are selected according to their performance. Following this, the optical non-linearities experienced by the signal are studied, and a numerical simulation model is proposed. This model is used to quantify the effects of non-linearities on the five selected modulations. We show that CPMs are invulnerable to these effects. Next, we use this model with a sub-THz link budget to study the feasibility of long-range communications with CPMs. Finally, a proof-of-concept is given, where the five modulations considered are tested in an experimental environment
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Silvester, Anna-Marie. "Space-time continuous phase modulation." Thesis, University of British Columbia, 2009. http://hdl.handle.net/2429/14721.

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The combination of Space-Time (ST) coding and Continuous-Phase Modulation (CPM) produces a low power, energy efficient communication scheme suitable for wireless transmission. Space-time coding increases the reliability of transmission, and continuous-phase modulation (CPM) has the potential to provide considerable energy savings. CPM is a modulation technique that involves the transmission of a signal with continuous-phase and a constant envelope, where the continuous-phase property produces a very bandwidth efficient signal, and the constant-envelope property enables non linear (and thus energy efficient) signal amplification. The ST-CPM code is of special interest for wireless sensors because in the wireless sensor network environment energy consumption is highly constrained. The combination of ST codes and CPM is non-trivial and thus ST-CPM codes based upon block-based orthogonal and diagonal signal matrices are presented. These codes are forms the basis of a distributed ST-CPM code. The distributed ST codes are designed to operate in wireless networks containing a large set of nodes, of which only a small a priori unknown subset will be active at any time. The devised distributed ST-CPM scheme combines the ST-CPM code with a diagonal signaling matrix, (commonly assigned to all relay nodes) with signature vectors(uniquely assigned to nodes). The energy consumption of the proposed distributed ST-CPM scheme is compared with that of a distributed ST linear modulation (LM) scheme. The distributed ST-CPM scheme is shown to outperform the distributed ST-LM scheme for all but short-range transmission. Finally, a serially concatenated code for ST-CPM is proposed. The concatenated code consists of the diagonal signalling matrix as the inner code, and a class of double parity check (DPC) codes as the outer code. The resulting concatenated codes that are formed from the ST-CPM code and a DPC code are shown to provide performance close to capacity, and to provide performance superior to that provided by the more common combination of CPM, or ST-CPM schemes with convolutional codes.
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Harrold, William. "Detection of continuous phase modulation." Thesis, University of Cambridge, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.235856.

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The use of coded modulations such as continuous phase modulation (CPM) can improve the power and bandwidth efficiency of digital communication links. The price paid for these gains is in increased receiver complexity. The power efficiency attainable with the highly redundant signal sets employed by coded modulations becomes limited by the ability of the receiver to achieve accurate carrier phase synchronisation. Power efficiency is assessed in terms of the bit error rate performance in white Gaussian noise. A new CPM detector called the partially coherent Viterbi algorithm (PCVA) is introduced which tries to preserve the power efficiency in the presence of mild phase perturbations. The detector employs the Viterbi algorithm with a new partially coherent decision metric. Carrier phase estimates are derived dynamically from the detector's own survivor paths. In the presence of phase jitter, the PCVA is superior to a Viterbi decision directed phase locked loop. The PCVA could be applied to the detection of modulation schemes other than CPM. An error analysis of the PCVA in the absence of phase jitter provides a new and more realistic way of assessing the relative merits of various CPM schemes. Unmerged error events have been found to occur when CPM is detected with carrier phase uncertainty. The carrier phase estimator pulls in the residual phase error in such cases. A reduced state Viterbi algorithm has been examined when using the partially coherent decision metric. Receiver complexity reduction is still possible even when the detector is not coherent. A method of acquiring the carrier frequency accurately from the received CPM signal is described. The other main research goal has been the development of a new low signal-to-noise ratio (SNR) error probability analysis for coherently detected CPM. CPM is designed for use on power limited channels, but the existing error probability analysis is only accurate at high SNR. The problem at low SNR is that several error events become significant, not just the one at minimum squared Euclidean distance. The new analysis considers many events and makes statistical allowance for their pairwise interaction. The probability of events intersecting and reclosing each other has not been analysed before. This work applies to maximum likelihood sequence detection on a memoryless channel in general. A new survey of CPM error performance is made and proves the existing minimum distance results to be often optimistic especially at low and intermediate signal-to-noise ratios. The new approximation is closer to the simulated error rates where these are available. The coherent error analysis involves some computation but it is still approximately three orders of magnitude faster than simulation.
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Kleyn, Werner Frederick. "Decoding algorithms for continuous phase modulation." Master's thesis, University of Cape Town, 2002. http://hdl.handle.net/11427/6984.

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Includes bibliographical references.<br>Continuous Phase Modulation (CPM) possesses characteristics that make it very attractive for many applications. Efficient non-linear power amplifiers can be used in the transmitters of constant envelope CPM schemes. CPM also allows for the use of simple limiters in the demodulator rather than linear receivers with gain control. These characteristics not only increases the life of the power source, but it improves circuit reliability since less heat is generated. In some applications, such as satellite transmitters, where power and circuit failure is very expensive, CPM is the most attractive choice. Bandwidth efficiency, also, is very attractive, and improves as the order of the scheme increases (together with reduction in modulation index). Still further improvement is obtained through pulse shaping which normally result in partial response schemes as opposed to full-response (CPFSK) schemes. The inherent memory or coding gain of CPM increases the minimum distance, which is a figure of merit for a scheme's error performance. The length of the inherent memory is the constraint length of the scheme. Successful extraction of this inherent memory result in improved power efficiency. By periodic variation of the modulation index as in multi-h CPFSK, a sub class of CPM, coding gain or inherent memory can be significantly improved. CPM demodulation is also less sensitive to fading channels than some other comparable systems. Well-known schemes such as GSM digital mobile systems, DECT and Iridium all use some form of CPM to transport their information. These implementations are normally pulse-shaped FSK or MSK and are used for the reasons above, except that their receivers do not always exploit the inherent memory. Unfortunately, though, when one wants to exploit the inherent memory of higher level CPM schemes, all these attractive characteristics are offset by the complexity of the receiver structures which increases exponentially in complexity as the order or constraint length is increased. Optimum receivers for binary CPFSK were first described by Osborne and Luntz [19] in 1974 and their research was later extended by Schonhoff [26] to include M-ary CPFSK. These receivers evaluate likelihood functions after observing the received signal for a certain number of symbol intervals, say N, then calculate a set of likelihood parameters on which a likelihood ratio test regarding the first symbol is based. These receivers are complex and impractical but does provide valuable insight. This is called maximum likelihood sequence estimation (MLSE). Another way to do MLSE would be to correlate all possible transmitted sequences (reference signals at the demodulator) over a period of N symbol intervals with the received sequence. The first symbol of the reference sequence with which the received sequence has the largest correlation, is decoded as the most likely symbol. The number of reference sequences required at the receiver grow very fast as the observation period increases. Up to now, only the lowest order CPM schemes have feasible optimal receiver structures. The only practical solution thus far for the MLSE of higher order schemes is the use of software implementations of which the Viterbi algorithm is the most popular. Through recursive or sequential processing of data per interval, the number of matched filters required can be reduced. However, for schemes beyond a certain order and constraint length, the Viterbi algorithm's consumption of computational resources reduces its feasibility. Research into CPM is focused mainly on the quest for simpler demodulators and decoders or lower order schemes with better coding gain. In order to gain further insight into CPM, research is approached from different angles.
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Perrins, Erik Samuel. "Reduced Complexity Detection Methods for Continuous Phase Modulation." Diss., CLICK HERE for online access, 2005. http://contentdm.lib.byu.edu/ETD/image/etd969.pdf.

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Zhao, Qing. "Advanced Synchronization Techniques for Continuous Phase Modulation." Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/10486.

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The objective of this research work is to develop reliable and power-efficient synchronization algorithms for continuous phase modulation (CPM). CPM is a bandwidth and power efficient signaling scheme suitable for wireless and mobile communications. Binary CPM schemes have been widely used in many commercial and military systems. CPM with multilevel symbol inputs, i.e., M-ary CPM, can achieve a higher data rate than binary CPM. However, the use of M-ary CPM has been limited due to receiver complexity and synchronization problems. In the last decade, serially concatenated CPM (SCCPM) has drawn more attention since this turbo-like coded scheme can achieve near Shannon-limit performance by performing iterative demodulation/decoding. Note that SCCPM typically operates at a low signal-to-noise ratio, which makes reliable and power-efficient synchronization more challenging. In this thesis, we propose a novel timing and phase recovery technique for CPM. Compared to existing maximum-likelihood estimators, the proposed data-aided synchronizer can achieve a better acquisition performance when a preamble is short or channel model errors are present. We also propose a novel adaptive soft-input soft-output (A-SISO) module for iterative detection with parameter uncertainty. In contrast to the existing A-SISO algorithms using linear prediction, the parameter estimation in the proposed structure is performed in a more general least-squares sense. Based on this scheme, a family of fixed-interval A-SISO algorithms are utilized to implement blind iterative phase synchronization for SCCPM. Moreover, the convergence characteristics of iterative phase synchronization and detection are analyzed by means of density evolution. Particularly, an oscillatory convergence behavior is observed when cycle slips occur during phase tracking. In order to reduce performance degradation due to this convergence fluctuation, design issues, including delay depth of the proposed algorithms, iteration-stopping criteria and interleaver size, are also discussed. Finally, for completeness of the study on phase synchronization, we investigate the error probability performance of noncoherently detected full-response CPM, which does not require channel (or phase) estimation.
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Books on the topic "Continuous Phase Modulations"

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Lindell, Göran. On coded continuous phase modulation. Telecommunication Theory, Univ. of Lund, 1985.

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Asano, David Ken. Phase smoothing functions for continuous phase modulation. National Library of Canada, 1990.

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Pandey, Raju. Noncoherent detection of continuous phase modulation. National Library of Canada, 1990.

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Szeto, Fatt Victor. Iterative decoding of coded continuous phase modulation. National Library of Canada, 1998.

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L, Smith D., Jones L. Thomas, and United States. National Telecommunications and Information Administration., eds. Power spectral densities for selected digital phase-continuous MFSK emissions. U.S. Dept. of Commerce, National Telecommunications and Information Administration, 1989.

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Nesenbergs, M. Power spectral densities for selected digital phase-continuous MFSK emissions. U.S. Dept. of Commerce, National Telecommunications and Information Administration, 1989.

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Trellis coding with continuous phase modulation (CPM) for satellite-based, land-mobile communications: Final report. Technology Group, 1989.

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Book chapters on the topic "Continuous Phase Modulations"

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Zhang, Jian, Zuyao Ni, Sheng Wu, and Linling Kuang. "Low-Complexity Equalization of Continuous Phase Modulation Using Message Passing." In Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-72823-0_46.

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Yan, Yi. "An Improved Double Iterate Equalize Algorithm for Continuous Phase Modulation." In Lecture Notes in Electrical Engineering. Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-4981-2_168.

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Hasegawa, Akira, and Yuji Kodama. "Modulation Instability." In Solitons in Optical Communications. Oxford University PressOxford, 1995. http://dx.doi.org/10.1093/oso/9780198565079.003.0015.

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Abstract A continuous wave with a cubic nonlinearity in an anomalous dispersion regime is known to develop instability with respect to small modulations in amplitude or in phase, called modulational instability. The phenomenon of modulational instability was discovered in fluids (Ostrovskii 1963, 1966; Whitham 1965; Benjamin and Feir 1967), in nonlinear optics (Bespalov and Talanov 1966; Karpman 1967), and in plasmas (Taniuti and Washimi 1968; Tam 1969; Hasegawa 1970, 1971). Modulational instability of a light wave in a fibre was suggested by Hasegawa and Brinkman (1980) as a means to generate a far infrared light source. Akhmediev et al. (1986, 1987) studied the modulational instability by constructing exact periodic solutions of the NLS equation. The first experimental verification of the modulational instability of a light wave in a fibre was made by Tai et al. (1986a). The modulational instability can also be induced by a mixture of a small amplitude light waves with the frequency separation (with respect to the carrier cw wave) falling into the sideband frequency range of instability (Hasegawa 1984). This induced modulational instability can be used to generate an ultra short pulse train with a desired repetition rate. The first experimental evidence of an induced modulational instability was also produced by Tai et al. (1986b). Modulational instability can also be produced by cross phase modulation (Berkhoer and Zakharov 1970; Agrawal 1987). This chapter is devoted to presenting theoretical and experimental analyses of modulational instabilities in fibres.
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"Coding Techniques Using Continuous Phase Modulation." In Contemporary Coding Techniques and Applications for Mobile Communications. Auerbach Publications, 2009. http://dx.doi.org/10.1201/9781420054620.ch11.

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Berber, Stevan. "Digital Bandpass Modulation Methods." In Discrete Communication Systems. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780198860792.003.0006.

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This chapter presents mathematical models of baseband and bandpass digital communication systems based on binary and quaternary phase-shift keying, frequency-shift keying, and quadrature amplitude modulation. The systems are deduced as special cases from the general generic system structure and the related theory of orthonormal basis functions. The systems are uniquely presented using mathematical operators and detailed derivatives for signals in time and frequency domains at the system’s vital points, that is, the transmitter, the receiver, and the noise generator, using the concepts of both stochastic (continuous and discrete) and deterministic (continuous and discrete) signal processing. The vital characteristics of the system and its blocks are expressed in terms of amplitude spectral density, autocorrelation functions, power and energy spectral densities, and bit error probability.
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Qian, Jinwang, Junling Sun, Pengge Ma, Xinlu Gao, and Shanguo Huang. "Complex-Coefficient Microwave Photonic Filter Based on Orthogonally Polarized Optical Single-Sideband Modulation." In Proceedings of CECNet 2021. IOS Press, 2021. http://dx.doi.org/10.3233/faia210448.

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A complex-coefficient microwave photonic filter with continuous tunability is proposed and experimentally demonstrated. The filter taps are based on a 360° tunable microwave photonic phase shifter, which is realized by orthogonally polarized optical single-sideband (OSSB) modulation. The experimental results are shown and regarded as good performance for the proposed filter. The phase shift for the two taps covers a full 360° range from 8 GHz to 26 GHz. Frequency responses with different center frequency are measured within 20–21 GHz with the full free spectral ranges (FSRs) of 185 MHz and 285 MHz, respectively.
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van Wijk, Bernadette C. M. "Oscillatory Activity in Sensorimotor Function." In The Oxford Handbook of EEG Frequency. Oxford University Press, 2022. http://dx.doi.org/10.1093/oxfordhb/9780192898340.013.12.

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Abstract Amplitude modulations in alpha/mu, beta, and gamma frequency bands are robustly linked to several aspects of sensorimotor function. Even a simple finger tap induces a prominent suppression of alpha/mu and beta power that already starts during the preparation phase, continues during execution, and ends in a rebound after movement termination. An increase in gamma power can often be observed around movement onset in contralateral motor cortex. Recordings from other parts of the motor system such as the basal ganglia and motoneurons in the spinal cord indicate that these modulations and frequency bands are a hallmark of the sensorimotor network. Beta oscillations in particular are considered crucial in mediating the facilitation and inhibition of motor output. This is exemplified by elevated beta amplitudes in local field potential recordings from the subthalamic nucleus in patients with Parkinson’s disease. This chapter outlines current ideas about the role of individual frequency bands in motor control, how coherence estimates between recordings from distant sites have revealed functional networks, and what we know about the involvement of oscillatory activity in movement disorders.
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"Performance Evaluation of the OFDM and SC-FDE Systems Using Continuous Phase Modulation." In Multi-Carrier Communication Systems with Examples in MATLAB. CRC Press, 2016. http://dx.doi.org/10.1201/b19273-11.

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Majee, Prativa, Amit Kumar, and Debasis Nayak. "Host Factors: New Dimension in Antiviral Drug Targeting." In Recent Trends and The Future of Antimicrobial Agents - Part I. BENTHAM SCIENCE PUBLISHERS, 2023. http://dx.doi.org/10.2174/9789815079609123010013.

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A spike in the emergence of several viruses is observed in the modern era, including the present SARS-CoV2 virus. The continuous emergence of new viral strains and growing resistance to the existing antiviral drugs urge new drug targets and novel antiviral candidates against them. Host genes utilized by the viruses for their proliferation, also known as host factors, have surfaced as a new antiviral strategy. If affordable to the host cells, targeting the host factors may prove beneficial in controlling viral infection. Host factors play an essential function in the viral life cycle, and modulating their functions would thus impact viral replication. Often, the interacting interfaces between the host and the viral proteins aim at antiviral interventions. This aspect of antiviral drug development is in its inception phase. However, with the advancement in molecular techniques identifying various viral host factors, this field is believed to have immense potential as an antiviral drug targeting strategy. This chapter briefly describes the host proteins' implication in viral biology and how they can be exploited to treat viral diseases.
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Conference papers on the topic "Continuous Phase Modulations"

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Guo, Zhijie, and Lei Cao. "SOVA Decoded Serially Concatenated Continuous Phase Modulations with Binary Markov Source." In SoutheastCon 2025. IEEE, 2025. https://doi.org/10.1109/southeastcon56624.2025.10971460.

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Zheng, Shuai, and Ning Wang. "A new two-level phase synchronization algorithm for continuous phase modulation scheme." In 2024 9th International Symposium on Computer and Information Processing Technology (ISCIPT). IEEE, 2024. http://dx.doi.org/10.1109/iscipt61983.2024.10673404.

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Barbieri, Alan, Dario Fertonani, and Giulio Colavolpe. "Spectrally-Efficient Continuous Phase Modulations." In 2008 IEEE International Symposium on Information Theory Conference. IEEE, 2008. http://dx.doi.org/10.1109/isit.2008.4595492.

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Barbieri, A., A. Cero, A. Piemontese, and G. Colavolpe. "Markov Capacity of Continuous Phase Modulations." In 2007 IEEE International Symposium on Information Theory. IEEE, 2007. http://dx.doi.org/10.1109/isit.2007.4557220.

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Maiolo, Marilena, Gabriele Boccolini, and Marco Luise. "Soft carrier phase recovery for continuous phase modulations." In 2010 European Wireless Conference (EW). IEEE, 2010. http://dx.doi.org/10.1109/ew.2010.5483462.

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Barbieri, Alan, Dario Fertonani, and Giulio Colavolpe. "Design of spectrally-efficient continuous phase modulations." In 2008 10th International Workshop on Signal Processing for Space Communications (SPSC). IEEE, 2008. http://dx.doi.org/10.1109/spsc.2008.4686710.

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Remlein, Piotr, and Michal Krysciak. "Pragmatic continuous phase modulations for wireless robotics systems." In 2014 9th International Symposium on Communication Systems, Networks & Digital Signal Processing (CSNDSP). IEEE, 2014. http://dx.doi.org/10.1109/csndsp.2014.6923885.

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Desombre, Paul, Jérôme Taillieu, Charikleia Tzimoragka, et al. "Continuous Phase Modulations for Sub-THz Wireless Communications." In 2023 XXXVth General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS). IEEE, 2023. http://dx.doi.org/10.23919/ursigass57860.2023.10265666.

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Fertonani, Dario, and Tolga M. Duman. "Multi-Rate Continuous Phase Modulations for Gaussian Broadcast Channels." In GLOBECOM 2009 - 2009 IEEE Global Telecommunications Conference. IEEE, 2009. http://dx.doi.org/10.1109/glocom.2009.5425845.

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Piat-Durozoi, Charles-Ugo, Charly Poulliat, Nathalie Thomas, Marie-Laure Boucheret, and Guy Lesthievent. "Precoding for Non-Coherent Detection of Continuous Phase Modulations." In MILCOM 2018 - IEEE Military Communications Conference. IEEE, 2018. http://dx.doi.org/10.1109/milcom.2018.8599739.

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