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.FSK、PSK、ASK调制原理 在数字通信系统中,数字基带信号通常要经过数字调制后再传输。常见的调制方式有频移键控(FSK)、相移键控(PSK)、幅移键控(ASK)-. FSK, PSK, ASK modulation principle in digital communication systems, digital baseband signal is usually subject to digital modulation and then transmitted. Common m
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M=4的数字相位调制系统相位键控PSK的Monte Carlo仿真-M = 4 of the digital phase shift keying PSK modulation system phase of the Monte Carlo simulation
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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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基于Systemview的通信系统的仿真
主要是运用Systemview软件对二进制振幅键控(2ASK)系统、二进制移频键控(2FSK)系统、二进制移相键控(2PSK)系统以及二进制差分相位键控(2DPSK)系统进行设计,然后对设计的系统进行仿真,这其中分别包括它们的调制和解调系统。-Systemview based simulation of communication systems is the use of software Systemview binary amplitude s
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【摘要】采用’()*(+ 通信仿真软件对应用于无线信道中的,-./,0-./,01(’ 的数字通
信方式和主要通信过程的实际情况进行计算机模拟仿真。主要通信过程为抽样、量化、编码、调制解
调、纠错编码等,并给出了几种调制解调的主要特性,为建立实际通信系统提供了基本的依据。
【关键词】移相键控(-./);正交幅度调制(1(’);脉码调制(-2’)-【Abstract】 ()*(+ communication simulation software used in wireless ch
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simulates Bit Error rate of Binary phase Shift Keying in AWGN channel
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Phase shift keying using MATLAB, basically its DBPSK.
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二进制差分编码解码,二进制差分相移键控二进制幅移键控,二进制相移键控,二进制频移键控最小频移键控的调制与解调-Differential encoding and decoding binary, binary differential phase shift keying binary amplitude shift keying, BPSK, binary frequency shift keying Minimum Shift Keying modulation and demodulati
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this project is about phase shift keying
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Amplitude-shift keying (ASK) is a form of modulation that represents digital data as variations in the amplitude of a carrier wave.
Any din scheme uses a finite number of distinct signals to represent digital data. ASK uses a finite number of ampli
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在二进制数字调制中,当正弦载波的相位随二进制数字基带信号离散变化时,则产生二进制移相键控(2PSK)信号。 通常用已调信号载波的 0°和 180°分别表示二进制数字基带信号的 1 和 0,用matlab实现其功能。-In binary digital modulation, phase when the sine wave with the discrete binary digital baseband signal changes, then generates a binary phase
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QPSK 的调制解调代码,以及仿真结果输出,可自行输入比特流!!!!希望对大家有用-Code for Quadrature Phase Shift Keying(QPSK),including QPSK modulator and QPSK demodulator. hope it s useful for you !
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使用matlab生成二进制调幅信号和四进制相移键控信号-Matlab generate binary amplitude modulation signal and quaternary phase shift keying signal
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CP-OFDM仿真,详细,有资料,有程序。-Matlab file for simulating a cyclic-prefix (CP) orthogonal-frequency-
division-multiplexing (OFDM) system with binary phase-shift keying (BPSK)
modulation on each subcarrier. CP-OFDM system includes a repetition code
an
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16 进制的正交振幅调制是一种振幅相位联合键控信号。16QAM 的产生有 2 种方法:
(1)正交调幅法,它是有 2 路正交的四电平振幅键控信号叠加而成;
(2)复合相移法:它是用 2 路独立的四相位移相键控信号叠加而成。-Quadrature amplitude modulation is a hex key signal amplitude and phase combined. 16QAM produce two kinds of methods: (1) quadrature a
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This Paper is concerned with the study of the performance of DPSK (differential phase shift keying)
Modulation Technique using AWGN(Additive white gaussian noise) channel. The DPSK has remarkable
features such as limited bandwidth and constant en
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Differential PSK (DPSK)
Inexpensive
Quadrature Phase Shift Keying (QPSK)
Twice as spectrally efficient than BPSK
Offset QPSK (OQPSK)
reduce envelope variation
π/4 QPSK
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正交相移键控 (Quadrature Phase Shift Keying)简称“QPSK”,是一种数字调制方式。它分为绝对相移和相对相移两种。由于绝对相移方式存在相位模糊问题,所以在实际中主要采用相对移相方式DQPSK。目前已经广泛应用于无线通信中,成为现代通信中一种十分重要的调制解调方式。-QPSK THAT IS TO SAY....
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BPSK_BER_GAIN_OFDM
Phase Shift Keying
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二进制相移键控信号时域波形,频域功率谱密度,以及加入加性高斯白噪声后输出的信噪比与误码率的关系。-Binary Phase Shift Keying signal time-domain waveform, frequency domain power spectral density, and the relationship between AWGN to a dispersion after the output signal to noise ratio and bit error ra
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