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ASK（二进制幅度键控）是一种最简单的数字信号的载波传输，本文通过对数字信号的2ASK调制，解调在不同信噪比的情况下误码率分析，得出不同信噪比下的误码率。
通过对2ASK的仿真更好的理解了数字调制系统的组成以及各模块的功能。
,ASK (binary amplitude shift keying) is a simple digital signal carrier transmission, this paper 2ASK digital signal modulation, demod
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本文利用核心芯片TDA5051A，采用ASK（幅度键控）调制技术，建立电力线通信系统，实现数字信号在电力线上进行传输。
关键词:电力线通信 TDA5051A 调制解调器
-In this paper, the core chip TDA5051A, using ASK (amplitude shift keying) modulation technology, the establishment of power line communication systems, digital
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研究相关瑞利衰落信道上MIMO系统中组合发射机选择合并(SC)／4t-收机最大比合并(MRC)的天线分集系统性能。使用矩生成函数方法，推导相关瑞利衰落信道上采用组合SC／MRC天线分集和相干检测的M 进制相移键控(MPSK)，M进制正交幅度调制(MQAM)，M 进制脉冲幅度调制(MPAM)等几种M 进制数字调制方式的误符号率精确表达式。数值计算结果阐明相关性和天线阵结构对采用组合SC／MRC天线分集的几种M 进制数字调制方式的平均误符号率性能的影响。-Research related to Ra
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Quaternary Amplitude Shift Keying
clear all
M=3
NPoints=input( Enter the number of points>> )
NumberBits=input( Enter the number of points per bit>> )
Signal Constellation of ASK
for i=1:NPoints
m=round(rand(
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Quaternary Amplitude Shift Keying
clear all
M=3
NPoints=input( Enter the number of points>> )
NumberBits=input( Enter the number of points per bit>> )
Signal Constellation of ASK
for i=1:NPoints
m=round(rand(
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Quaternary Amplitude Shift Keying
clear all
M=3
NPoints=input( Enter the number of points>> )
NumberBits=input( Enter the number of points per bit>> )
Signal Constellation of ASK
for i=1:NPoints
m=round(rand(
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HART协议采用基于Bell202标准的FSK频移键控信号，在低频的4-20mA模拟信号上叠加幅度为0.5mA的音频数字信号进行双向数字通讯，数据传输率为-The HART protocol uses frequency shift keying signal, FSK-based standard Bell202 0.5mA audio digital signal superimposed on the low frequency of 4-20mA analog signal amplit
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A AMPLITUDE SHIFT KEYING ,FREQUENCY SHIFT KEYING AND QUADRATURE SHIFT KEYING PROGRAM WRITTEN IN MATLAB
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数字信号的传输方式分为基带传输和带通传输，在实际应用中，大多数信道具有带通特性而不能直接传输基带信号。为了使数字信号在带通信道中传输，必须使用数字基带信号对载波进行调制，以使信号与信道的特性相匹配。这种用数字基带信号控制载波，把数字基带信号变换为数字带通信号的过程称为数字调制。通常使用键控法来实现数字调制，比如对载波的振幅、频率和相位进行键控-The transmission mode of the digital signal is divided into a base-band trans
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数字信号的传输方式分为基带传输和带通传输，在实际应用中，大多数信道具有带通特性而不能直接传输基带信号。为了使数字信号在带通信道中传输，必须使用数字基带信号对载波进行调制，以使信号与信道的特性相匹配。这种用数字基带信号控制载波，把数字基带信号变换为数字带通信号的过程称为数字调制。通常使用键控法来实现数字调制，比如对载波的振幅、频率和相位进行键控-The transmission mode of the digital signal is divided into a base-band trans
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根据FSK调制原理
在二进制频移键控中，幅度恒定不变的载波信号的频率随着输入码流的变化而切换（称为高音和低音，代表二进制的1和0）。来做实验
-According to the principle of FSK modulation in the binary frequency shift keying, the frequency of the carrier signal amplitude constant with the change of the input stream
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amplitude shift keying
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Binary Frequency Shift Keying (BFSK), the frequency of a constant amplitude carrier signal is switched between two values according to the two possible message states (called high and low tones) corresponding to a binary 1 or 0.Depending on how the f
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Binary Frequency Shift Keying (BFSK), the frequency of a constant amplitude carrier signal is switched between two values according to the two possible message states (called high and low tones) corresponding to a binary 1 or 0.Depending on how the f
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Amplitude shift Keying
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this code performs amplitude shift keying using matlab code
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Amplitude shift keying(ASK) modulation
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A noncoherent, bandwidth-efficient modulation
scheme is proposed for frequency-hopping multiple-access
(FH-MA) networks. The proposed scheme is a combination
of noncoherent -ary amplitude-shift keying (NMASK) and
orthogonal frequency-division
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Amplitude Shift Keying
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设计一个简易数字信号ASK调制系统。系统数字基带信号V1为m序列伪随机信号，载波信号V2为正弦波周期信号，V3为V1经二进制幅移键控调制后的输出。系统输入为CLOCK和RESET信号，CLOCK是系统时钟信号，上升沿触发。RESET为系统异步复位信号，高有效。(A simple digital signal ASK modulation system is designed. The system digital baseband signal V1 is m sequence pseudo r
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