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fm中频调制中实现数字正交上变频和正交下变频。-fm frequency modulation in digital quadrature up-conversion and down-conversion quadrature.
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利用matlab仿真软件，实现8QAM调制。在实现时采用正交调幅的方式,某星座点在I坐标上的投影去调制同相载波的幅度,在Q坐标上的投影去调制正交载波的幅度,然后将2个调幅信号相加就是所需的调相信号。-Use of matlab simulation software to achieve 8QAM modulation. In achieving the adoption of quadrature amplitude modulation means of a constellation in
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基于8PSK的调制解调，中间还有滤波器，内插器，正交调制-Based on 8PSK modulation and demodulation of the middle there are filters, interpolation, and quadrature modulation
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Quadrature Amplitude Modulation (QAM）在MATLAB的仿真和应用-Simulink-based Simulation of Quadrature Amplitude Modulation (QAM
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OFDM digital modulation for wireless communications systems. multilevel quadrature modulation with constellation with m symbol
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DIGITAL MODULATION TECHNIQUES
the material describes digital modulation techniques such as BINARY PHASE SHIFT KEYING (BPSK), DIFFERENTIAL PSK (DPSK), DIFFERENTIALLY-ENCODED PSK (DEPSK), QUADRATURE PSK (QPSK), QUADRATURE AMPLITUDE SHIFT KEYING (Q-AS
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Title : Implementation of quadrature modulation and demodulation
Design Object : By implementing quadrature modulation and demodulation of analog signals in digital signal processing, students will have better understanding of sampling and frequenc
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Implementing quadrature modulation and demodulation of analog signals in digital signal processing, using MATLAB
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载波调制的数字传输，有幅度，相位，频率的调制，以及正交调制和同步-Modulation of the digital transmission, a range, phase, frequency modulation, and quadrature modulation and synchronization
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PERFORMANCE ANALYSIS OF OFDM
Orthogonal Frequency-Division Multiplexing (OFDM) — essentially identical to Coded OFDM
(COFDM) — is a digital multi-carrier modulation scheme, which uses a large number of closely-spaced
orthogonal sub-carriers. Ea
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bit error rate of quadrature modulation.
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FSK frequency shif keying simulation with matlab and Quadrature amplitude modulation QAM 16
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数字调制，四相正交调制，有助于对调制技术有深入理解-Digital modulation, four-phase quadrature modulation, contribute to the understanding of the modulation depth
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基于matlab的QAM调制与解调。正交振幅调制（QAM）是一种幅度和相位联合键控（APK）的调制方式。它可以提高系统可靠性，且能获得较高的信息频带利用率，是目前应用较为广泛的一种数字调制方式。
-Matlab based on the QAM modulation and demodulation. Quadrature amplitude modulation (QAM) is a joint amplitude and phase keying (APK) modulation met
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Inter-symbol interference if not taken care off may
cause severe error at the receiver and the detection of signal becomes
difficult. An adaptive equalizer employing Recursive Least Squares
algorithm can be a good compensation for the ISI probl
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the OFDM PHY is adaptive therefore it supports
multiple schemes BPSK, QPSK, 16-QAM and 64-QAM for
data carriers’ modulation. The constellation diagrams are
gray mapped and shows the magnitudes I and Q (In-phase
and Quadrature) components of e
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BCM3034芯片的主要功能介绍,主要是实现QAM正交调制的功能,以及引脚实现-BCM3034 chip, introduced the main functions, mainly to achieve QAM quadrature modulation function, and pin to achieve
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QPSK receptor for quadrature modulation
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QPSK/16QAM/64QAM/256QAM/1024QAM调制的误码率计算为加性高斯白噪声-Calculates the symbol error rate of QPSK/16QAM/64QAM/256QAM/1024QAM modulation for additive white Gaussian noise
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a coherent optical receiver for demodulating optical quadrature phase-shift keying (QPSK) signals. ... Third, this scheme is applicable to multilevel modulation formats such as M-array PSK and quadrature amplitude modulation (QAM). First contribution
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