We develop a coded modulation system with continuous phase and a small controlled envelope variation. We call the system Constrained Envelope Continuous Phase Modulation (ceCPM) and show that, there is a gain for ceCPM over CPM under the same spectrum constraint. With normalized amplitude varying in the interval {1±0.2} the gain for ceCPM is up to 2.5 dB over CPM at symbol error probability 10....

The efficacy of learning in a classroom depends on how engaged students are with the learning material. Is it possible to assess students engagement directly from their brain activity without distracting them from the material at hand? We performed simultaneous recordings of electroencephalography (EEG) from multiple students in a classroom, and measured the inter-subject correlation (ISC) of a...

From the *Division of Cell Biology, Children's Hospital, the Ina Sue Perlmutter Cystic Fibrosis Research Center, Department of Pediatrics, Harvard Medical School, Boston, Massachusetts 02115; the *Arthritis Center, Boston University School of Medicine, Boston, Massachusetts 02118; the ~Department of Medicine, Tufts University School of Medicine, Boston, Massachusetts 0211 I; and the H Microbiol...

I always had difficulties in understanding frequency modulation (FM) and its frequency spectrum. Even for the pure tone modulation, the FM spectrum consists of an infinite number of sidebands whose signs change from one sideband to the next one and whose amplitudes are given by the horrible Bessel functions. . . I work for Zurich Instruments, a Swiss maker of lock-in amplifiers and it has becom...

Asia Pacific Center for Theoretical Physics, Pohang, Gyeongbuk 37673, Korea Laboratory of Biological Modeling, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892, United States of America Department of Natural Sciences, Quang Binh University, Dong Hoi, Quang Binh 510000, Vietnam Department of Physics, Pohang University of Sc...

ARTICLE TEXT SUPPLEMENTAL MATERIAL REFERENCES ABSTRACT We report measurements of electrical resistivity under pressure to 5.8 GPa, magnetization to 6.7 GPa, and ac susceptibility to 7.1 GPa in KFe2As2. The previously reported change of slope in the pressure dependence of the superconducting transition temperature Tc(p) at a pressure p∗∼1.8 GPa is confirmed, and Tc(p) is found to be nearly const...

PURPOSE We determined the relative contributions of rods, cones, and melanopsin to pupil responses in humans using temporal sinusoidal stimulation for light levels spanning the low mesopic to photopic range. METHODS A four-primary Ganzfeld photostimulator controlled flicker stimulations at seven light levels (-2.7 to 2 log cd/m(2)) and five frequencies (0.5-8 Hz). Pupil diameter was measured ...

Elementary information about convolutional codes over finite fields is introduced, and various motivations for extension to convolutional codes over finite rings are discussed. The recent primary motivation is found to be for use over phase modulation signals. Such ring codes enjoy the special property of phase weight equal to phase distance equal to the squared Euclidean distance between phase...

In this paper, a novel method called offset modulation OM-OFDM is proposed, to control the peak-to-average power ratio of an OFDM signal. The theoretical.In this paper, the authors propose such a method called offset modulation OM-OFDM. The proposed offset modulation method pdf image stamp keygen is developed in Section II.Binary Offset Carrier modulation BOC modulation is currently used in Gal...