high-speed frequency modulation
Cavity Resonator With Electrostatic Focusing
... of high-frequency electric field, it is modulated on speed, being transformed to modulation on density in drift ...a high-frequency field, give the ...on speed on the one ...
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High Speed Direct Signal Frequency Synthesizer
... different modulation capabilities in the DDS by using digital signal processing methods, because the signal is in digital ...a high degree of system ...
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Practical analysis of polymers with depth varying compositions using Fourier transform infrared photoacoustic spectroscopy (plenary)
... or modulation frequencies, which, as previously dis- cussed, result in different thermal diffusion lengths, L, and so different effective probe ...scan speed or ...and high scanning- speed ...
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High performance speed of the induction motor drives by the predictive control using space vector modulation
... However the gpc has other issues. on the one hand, it has the added difficulty of the existence of constraints, that is, the study of the control system taking account the limitations of the real system like saturation ...
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Applicability of Modulation Schemes for WDM High Speed Networks using Hybrid Optical Amplifiers
... The layout of design(DWDM_MOD) has been designed by OPTISYSTEM 16.0.Fig. 4 shows 56-channel DWDM network having RZ and NRZ modulation formats at 40 GB/s. The transmitter section consists of a 56-channel WDM ...
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Pulse Interval Modulation for Ultra-High Speed IR-UWB Communications Systems
... At the transmitter input, a serial data stream is trans- formed into a parallel M-bit data sequence and then loaded in the latch. Simultaneously with loading, the counter is reset and it starts to count with chip clock ...
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Interval modulation: a new paradigm for the design of high speed optical communication systems
... bit period greater than or equal to twice the size of the smallest symbol, even though the difference between two adjacent symbols is smaller than the size of the smallest symbol. Other noteworthy features of the ...
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A High Speed Open Access Visible Light Communication System Based On Intensity Modulation
... LED-to-LED Visible Light Communication (VLC) based on Light Emitting Diodes (LEDs) and microcontrollers provide a foundation for networking using visible light as communication medium. Recently, the low energy ...
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Comparative Study Of LTV Channel for Mitigation of ICI with respect to LTI Channel under Different Condition in OFDM
... Orthogonal frequency division multiplexing (OFDM) and compatible usage in wireless standards like DVB, WIMAX, ...orthogonal frequency division multiplexing (OFDM) and its usage in advance wireless standards ...
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Altered modulation of gamma oscillation frequency by speed of visual motion in children with autism spectrum disorders
... velocity-specific frequency win- dows of ...resulting frequency windows were broad enough to include visual gamma re- sponses in both the TD and ASD ...specified frequency window may cover several ...
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Field Programmable Gate Array (FPGA) Based Speed Control of 3-Φ Induction Motor Drives
... loop speed control strategy is implemented of Variable-Voltage Variable-Frequency (VVVF) method based on sinusoidal pulse width modulation technique (SPWM) for a three phase induction motor using a ...
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Time-Frequency Training OFDM using Matlab for high speed environments
... Based on the observations that the IBI caused by the OFDM data block has to be removed for reliable channel estimation, and the complete cancellation of such IBI is difficult even when the channel estimation is perfect, ...
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Analysis and Approach for Key Technique Based on THz Wireless Transmission
... THz quantum well Photon (QWP) is one new potential detector that is QWP infrared photoelectric detector expansion in THz waveband. Its work principal is based on photoinduced excitation in band. It excites the bound ...
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Orthogonal Frequency Division Multiplexing & Measurement of its Performance
... non-overlapping frequency sub-bands, each of which is used to carry a separate ...through high capacity trunk lines, communications satellites to transmit multiple channels of data on uplink and downlink ...
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Phase Frequency Detector Using Transmission Gates for High Speed Applications
... in high-speed interface systems, frequency synthesizers [1, 2], clock and data recovery [3] and clock skewing circuits ...the speed of electrical systems is increasing, DLLs and PLLs with ...
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SINGLE CHIP IMPLEMENTATION OF MASKED AES WITH QPSK MODULATION FOR LONG DISTANCE TRANSMISSION
... Even though AES is very strong algorithm, the hardware implementation sometimes leaks the information. The hackers attack the data in different ways to trace the key or the plaintext. We must protect our information from ...
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FPGA implementation of universal modulator using CORDIC algorithm for communication application
... Coordinate Rotation Digital Computer (CORDIC) algorithms provide an efficient approach for rotating vectors in a plane by simple shift-add operations. Besides offering a simple mechanism for computing the magnitude and ...
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On the Performance Analysis of One Tap Equalizers in Oversampled OFDM Systems
... Oversampling is commonly encountered in orthogonal frequency division multiplexing (OFDM) systems to ease various performance characteristics. In this paper, we investigate the performance and complexity of one ...
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Equal latency contours and auditory weighting functions for the harbour porpoise (Phocoena phocoena)
... The high power LL 1424HP did not fit in the protective box, so this projector was hung in front of the box by ropes attached to its stainless steel cage, at ...m high, ...
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Equal latency contours and auditory weighting functions for the harbour porpoise (Phocoena phocoena)
... The high power LL 1424HP did not fit in the protective box, so this projector was hung in front of the box by ropes attached to its stainless steel cage, at ...m high, ...
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