digital modulation scheme
An Underwater Channel Model and Chirp Slope Keying Modulation Scheme Performance
... Chirp-Slope Keying (CSK) is a new and innovative digital modulation scheme for underwater data transmission. The underwater environment brings up several challenges to the manufacturing and operation ...
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A Survey on Modulation Schemes Used for Link Adaptation in WiMAX Networks
... ASK modulation. These different types of digital modulation schemes help in implementing link adaptation in WiMAX ...important digital modulation schemes are FSK, MSK, BPSK, QPSK and ...
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Signal space based adaptive modulation for software radio
... [2]. Modulation scheme recognition by the signal envelope extraction method was described by Druckmann, Plotkin and Swamy ...based modulation recogniser was proposed by Callaghan, Pery , and ...
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Secured Audio Signal Transmission in Hybrid Prefixing Scheme Implemented Multicarrier CmWave Wireless Communication System
... prefixing scheme implemented multicarrier cmWave wireless communication system has been investigated on secured audio signal transmission with utilization of various channel coding and channel equalization/signal ...
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Development Of Space Vector Modulator For 3-Phase Voltage Source Inverter (VSI)
... Width Modulation (SPWM) technique used to drive 3-phase inverter has some major drawbacks which is it requires 3 references signals as input of modulator to generate gate pulses for driving power switches in ...
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SECURITY IN COGNITIVE RADIO NETWORK
... 15 | P a g e RS-232.A UART is usually an individual (or part of an) integrated circuit used for serial communications over a computer or peripheral device serial port. They included in microcontrollers If two UARTs ...
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Investigation Of The Influence Of Atmospheric Temperature And Relative Humidity On Fm Radio Signal Strength: A Case Study Of We Fm Abuja.
... measure the temperature. It was found out by them that there was a relationship between radio signals and the change of temperature, and that the correlation coefficient between radio signal and temperature for 945 MHz, ...
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Layered spatial modulation
... spatial modulation scheme in [20] uses more than one active transmit antenna at each time period to increase the spectral ...this scheme is slightly smaller than the performance of the spatial ...
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Influencing parameters in peak to average power ratio performance on orthogonal frequency division multiplexing system
... Orthogonal frequency division multiplexing system is considered one of the important technologies, which used in the high-speed wireless communication system. Although, it has many advantages such as high data rate, ...
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Research on modulation recognition with ensemble learning
... Modulation scheme recognition occupies a crucial position in the civil and military application. In this paper, we present boosting algorithm as an ensemble frame to achieve a higher accuracy than a single ...
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Design And Development Of Software Defined Radio
... This project is to design and develop a Software Defined Radio that using implements the coding technique and modulation scheme (Quadrature Amplitude Modulation (QAM) with Orthogonal Frequency ...
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Digital Modulation Techniques for Performance Exploration of Optical Wireless Channels
... many modulation techniques which are used for optical wireless ...Keying Modulation ( M O.O.K ) and Pulse position modulation ( M ...position modulation ( M D.P.P.M ), Digital pulse ...
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7.2.1 Digital Carrier Modulation Architecture
... Digital modulation formats are classified as binary or multilevel signaling ...Binary digital modulations formats not simply subsets of multilevel formats, but are rather formats used exclusively as ...
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Optical Orthogonal Frequency Division Multiplexing Using Interval Shift Key Subcarriers
... time modulation such as pulse position modulation (L-PPM) and digital pulse interval modulation (L-DPIM) can achieve higher power efficiency but at the expense of increased bandwidth ...used ...
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Analysis of BER for N-Dimensional BPSK Recovery
... execution many-sided quality of OFDM. From that point forward, more down to earth OFDM look into has been completed. For instance, in the mid-1980sPeled and Ruiz proposed a disentangled FD information transmission ...
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Progressive Image Transmission over OFDM System with Minimum Peak to Average Power Ratio (PAPR)
... OFDM is a very attractive technique for wireless communications due to its spectrum efficiency and channel robustness. The combination of the high spectral efficiency OFDM modulation technique and LDPC coding will ...
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IMPLEMENTATION OF DIGITAL MODULATION TECHNIQUES IN MATLAB
... In BPSK modulation, the phase of the RF carrier is shifted 180 degree in accordance with a digital bit stream. A “one” causes a phase transition, and a “zero” does not produce a transition. In BPSK ...
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Digital Signature Scheme for Image
... a digital signature is that the embedding process of the former requires the content of the media to ...as digital signature [4] and the authentication signature is based on the invariance of the ...
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Simulation and Analysis of DSTATCOM
... amplitude modulation index of signal and the frequency modulation index of the triangular signal are the main parameters of the sinusoidal PWM scheme [3,4] ...
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A modified modulation scheme for three level diode clamped matrix converter under unbalanced input conditions
... modified modulation scheme for three-level diode-clamped matrix converter during operation with unbalanced input voltages and when different transformer turns ratios are used for an isolation transformer at ...
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