Results 1 to 10 of about 619,466 (195)

Optimal Parameter Design of Continuous Phase Modulation for Future GNSS Signals

open access: yesIEEE Access, 2021
Continuous phase modulation (CPM) is a power and spectrum efficient modulation that intrinsically possesses constant envelope, phase continuity as well as less out of band (OOB) radiation, especially appropriate for stringently bandwidth-constrained ...
Yanbo Sun
doaj   +2 more sources

Adaptive Coded Modulation Based on Continuous Phase Modulation for Inter-Satellite Links of Global Navigation Satellite Systems

open access: yesIEEE Access, 2018
The inter-satellite links (ISLs) will play an increasingly important role in improving the service performance and enhancing the survivability of global navigation satellite systems.
Rui Xue, Huan Yu, Qinglin Cheng
doaj   +2 more sources

Binary Continuous Phase Modulations Robust to a Modulation Index Mismatch [PDF]

open access: yesIEEE Transactions on Communications, 2015
We consider binary continuous phase modulation (CPM) signals used in some recent low-cost and low-power consumption telecommunications standard. When these signals are generated through a low-cost transmitter, the real modulation index can end up being quite different from the nominal value employed at the receiver and a significant performance ...
Messai, Malek   +3 more
openaire   +6 more sources

Performance vs. Spectral Properties for Single-Sideband Continuous Phase Modulation [PDF]

open access: yesIEEE Transactions on Communications, 2020
This study revokes the performance of continuous phase modulation (CPM) able to generate a single-sideband (SSB) spectrum directly. This signal is analyzed in terms of modulation indices, pulse lengths, and pulse widths, all of which affect error ...
Karim Kassan   +3 more
semanticscholar   +1 more source

Electrically Tunable Reflective Metasurfaces with Continuous and Full-Phase Modulation for High-Efficiency Wavefront Control at Visible Frequencies. [PDF]

open access: yesACS Nano, 2023
All-dielectric optical metasurfaces can locally control the amplitude and phase of light at the nanoscale, enabling arbitrary wavefront shaping.
Parikshit Moitra   +6 more
semanticscholar   +1 more source

Integrated photonics enables continuous-beam electron phase modulation [PDF]

open access: yesNature, 2021
Integrated photonics facilitates extensive control over fundamental light–matter interactions in manifold quantum systems including atoms1, trapped ions2,3, quantum dots4 and defect centres5.
J. Henke   +13 more
semanticscholar   +1 more source

A Cooperative SAR-Communication System Using Continuous Phase Modulation Codes and Mismatched Filters

open access: yesIEEE Transactions on Geoscience and Remote Sensing, 2023
The electromagnetic congestion due to the continuous growth of spectral demand has been skyrocketing for the past years. Joint radar-communication systems are, thus, attracting attention as they can alleviate spectrum occupancy by using the same ...
Maria-Elisavet Chatzitheodoridi   +3 more
semanticscholar   +1 more source

Continuous-Phase Modulation for DFT-Spread Localized OFDM

open access: yesIEEE Open Journal of the Communications Society, 2021
Massive machine-type communications to support a large number of low-cost, low-power, and/or low-rate radio-frequency transceivers such as Internet-of-Things (IoT) devices is a major usage scenario of the 5G mobile communication system.
Jeonghoon Choi   +2 more
doaj   +1 more source

Phase Detection and Modulation Improvement for Active Load Modulation during Continuous Transmission

open access: yesSensors, 2021
The paper covers one of the communication technologies used in wireless sensor networks. We have presented improvements in existing radio frequency identification (RFID) systems to address the problem of the phase selection in active load modulation (ALM)
Nejc Suhadolnik   +5 more
doaj   +1 more source

Continuous Phase-Modulated Halftones [PDF]

open access: yesIEEE Transactions on Image Processing, 2009
A generalization of periodic clustered-dot halftones is proposed, wherein the phase of the halftone spots is modulated using a secondary signal. The process is accomplished by using an analytic halftone threshold function that allows halftones to be generated with controlled phase variation in different regions of the printed page.
Basak Oztan, Gaurav Sharma 0001
openaire   +2 more sources

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