Results 101 to 110 of about 29,061 (153)
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IEEE Transactions on Communications, 2008
This paper introduces a family of bandwidth efficient modulation schemes called quadrature multiplexed continuous phase modulation (QM-CPM). QM-CPM can be thought of as an alternative to smooth pulse-shaped quadrature amplitude modulation (QAM). Like pulse-shaped QAM, QM-CPM modulates smooth continuous signals onto the in-phase (I) and the quadrature ...
John P. Fonseka +2 more
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This paper introduces a family of bandwidth efficient modulation schemes called quadrature multiplexed continuous phase modulation (QM-CPM). QM-CPM can be thought of as an alternative to smooth pulse-shaped quadrature amplitude modulation (QAM). Like pulse-shaped QAM, QM-CPM modulates smooth continuous signals onto the in-phase (I) and the quadrature ...
John P. Fonseka +2 more
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Proceedings of the SIGCHI Conference on Human Factors in Computing Systems, 2002
CPM-GOMS is a modeling method that combines the task decomposition of a GOMS analysis with a model of human resource usage at the level of cognitive, perceptual, and motor operations. CPM-GOMS models have made accurate predictions about skilled user behavior in routine tasks, but developing such models is tedious and error-prone.
Bonnie E. John +4 more
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CPM-GOMS is a modeling method that combines the task decomposition of a GOMS analysis with a model of human resource usage at the level of cognitive, perceptual, and motor operations. CPM-GOMS models have made accurate predictions about skilled user behavior in routine tasks, but developing such models is tedious and error-prone.
Bonnie E. John +4 more
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CRUCIBLE CPM 10V, CPM 9V, MPL-1, CPM 440 V, CPM REX M4
Alloy Digest, 1993Abstract For demanding applications in industry, alloys have been custom crafted by powder metallurgy as systems for wear or wear/corrosion resistance. CPM 10V and 9V tool steels provide excellent wear resistance, and CPM 440 V, MPL-1, and CPM-M4 are used when superior corrosion resistance and excellent wear resistance are required This ...
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A decomposition approach to CPM
IEEE Transactions on Information Theory, 1988It is shown that any continuous-phase-modulation (CPM) system can be decomposed into a continuous-phase encoder and a memoryless modulator in such a way that the former is a linear (modulo some integer P) time-invariant sequential circuit and the latter is also time invariant.
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CPM optimization for low-complexity serial concatenated CPM
IEEE Military Communications Conference, 2003. MILCOM 2003., 2004Serial concatenated continuous phase modulation (SCCPM) combines the constant envelope and bandwidth efficiency of continuous phase modulation (CPM) with the performance of serially concatenated codes making it attractive for satellite communication links with saturated transmitter amplifiers.
A.P. Worthen, P.H. Wu
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Frequency detectors for CPM signals
IEEE Transactions on Communications, 1995Frequency tracking loops are used in digital links to control the carrier frequency of the received signals. A basic component in such loops is the frequency difference detector (FDD). This paper concentrates on a class of FDDs for use with binary continuous-phase modulation (CPM).
Nunzio Aldo D'Andrea +2 more
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PAM representation of ternary CPM
IEEE Transactions on Communications, 2008This letter considers the pulse amplitude modulation (PAM) representation of continuous phase modulation (CPM) with a ternary data alphabet. This technique is applied to the problem of constructing reduced-complexity detectors with near-optimum performance.
Erik Perrins, Michael Rice
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Proceedings. International Symposium on Information Theory, 2005. ISIT 2005., 2005
This paper calculates the capacity of continuous phase modulation (CPM) schemes, modeling CPM as a finite state machine. The novel capacity-calculation algorithm gives a reliable estimate of the capacity using minimal computer time. This algorithm allows the production of a more generalized class of modulation schemes called generalized CPM, which have
Krishnan Padmanabhan +3 more
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This paper calculates the capacity of continuous phase modulation (CPM) schemes, modeling CPM as a finite state machine. The novel capacity-calculation algorithm gives a reliable estimate of the capacity using minimal computer time. This algorithm allows the production of a more generalized class of modulation schemes called generalized CPM, which have
Krishnan Padmanabhan +3 more
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1971
Pre-seminar Digest: 2nd Man-Computer Communications Seminar, Ottawa, Ontario, Canada, May 31 - June 1 1971, 81 ...
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Pre-seminar Digest: 2nd Man-Computer Communications Seminar, Ottawa, Ontario, Canada, May 31 - June 1 1971, 81 ...
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Studies of a sample of CPM stars
Astrophysics and Space Science, 1988A sample of CPM stars selected from the AGK2/3 is used to investigate the following points: (a) What is the distribution of mass ratios of binaries with wide separations?, and (b) what is the proportion of wide binaries among stars. The distribution previously derived from the visual binaries of the Bright Star Catalogue seem to be an acceptable ...
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