منابع مشابه
Pulse Frequency Modulation Based On Biological Systems
The usefulness of pulse Frl.!qucncy Mudulation (PFM) in information transmission is ..:mpasizcd. Biological systems <Jlso usc Pulse Frcqu.:ncy Modulation in Lransmilling informations. An atlcmpl was made for an cx:pcrimcntal test on PFM. Some results of the experimental test show that almost distortion free information recovery, from the frequency modulated pulse train, is possible by low-pass ...
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Because of the serious non-linearity and coupling among state variables caused by the complex energy conversion process in ultrasonic motor, the motion control strategy of ultrasonic motor still need to be studied in detail to obtain better performance. As a kind of special control method, the low-frequency PWM control strategy can make the on-line optimum control easier, and may be an effectiv...
متن کاملA pulse-frequency modulation sensor using memristive-based inhibitory interconnections.
This paper proposes a programmable inhibitory interconnection network between pixels in an array of novel low-voltage Schmitt-trigger-based PFM sensors that will be of interest for future applications in memristor-based early vision processing. In addition, a new low-power inverter-based pulse-frequency modulation (PFM) design and its integration with the network is also presented. To ensure no...
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LEDs are likely to be used for general lighting applications due to their high efficiency and longer life. To cover wide output range on lighting application some of control methods are adopts. In the proposed method, the interleaved DCM fly back converter is favoured. DCM operation can accomplish high PF for wide output power range. To achieve high efficiency, new pulse duty cycle control meth...
متن کاملA. Pulse Modulation Studies
The present study of the interference problem in certain types of pulse modulation was first outlined in the Progress Report of October 15, 1947. Some of the basic phenomena resulting from interference between two pulsed carriers were discussed and illustrated in the last progress report. The work has continued, with emphasis on experimental analyses of common and adjacent channel interference;...
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ژورنال
عنوان ژورنال: IRE Transactions on Space Electronics and Telemetry
سال: 1962
ISSN: 0096-252X
DOI: 10.1109/iret-set.1962.5008816