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DSP
- 【摘 要】为了减少集成电路硬件复杂度,针对QAM 调制软件实现速度慢的问题,在分析MQAM 调制原理的基础上,采用 直接频率合成实现正余弦信号及无时延改进的滤波器编程方法,提出一种快速实现MQAM 调制算法的软件编程思想,并以 TMS320C55X 为平台[1,4],将MQAM 调制算法进行了C 编程实现。结果表明:该编程方法能快速产生MQAM 调制信号。 【关键词】多电平正交幅度调制;脉冲成形滤波器;直接频率合成;数字信号
MATLAB
- 通信专业有关的软件实验 双边带及单边带幅度调制与解调的MATLAB代码-Communications professionals with relevant software experiments and single-sideband amplitude modulation of bilateral and demodulation of MATLAB code
lq
- 利用MATLAB强大的图形处理功能,符号运算功能和数值计算功能,实现连续时间非周期信号频域分析的仿真波形; 1、用MATLAB实现典型非周期信号的频域分析; 2、用MATLAB实现信号的幅度调制; 3、用MATLAB实现信号傅立叶变换性质的仿真波形; -The use of MATLAB powerful graphics processing capabilities, symbolic computing and n
ch5example7prog1
- 幅度调制 频率150Hz~400Hz 上边带SSB 下边带SSB 各波形以及频谱-Amplitude modulation frequency of 150Hz ~ 400Hz above bottom band SSB spectrum with SSB, as well as the wave
mcode
- AM调制解调仿真,调幅度测量,不含干扰-AM Modulation and Demodulation, transfer rate measurement, without interference
DSB_AM_MATLAB
- 用来进行双边带幅度调制DSB_AM的MATLAB源程序。-Demonstration scr ipt for DSB-AM. The message signal is+1 for 0 < t < t0/3,-2 for t0/3 < t < 2t0/3, and zero otherwise.actually means Rx(m-1).
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- 基于MATLAB的正交幅度调制系统仿真基于MATLAB的正交幅度调制系统仿真-MATLAB-based Simulation of quadrature amplitude modulation quadrature amplitude modulation MATLAB-based simulation
ASK
- 4ASK程序分享,数字幅度调制,二进制调制-4ASK program sharing, the number of amplitude modulation, the binary modulation
DSBmatlab
- 幅度调制,双边带信号产生、双边带调幅的时域表示式及频谱-Amplitude modulation (AM),double side-band signal generation,the time domain expression and frequency spectrum of double side-band Amplitude modulation
QAM
- 这是QAM(正交幅度调制)的MATLAB仿真源程序-This is a QAM (quadrature amplitude modulation) of the MATLAB simulation source
ch2example22Sfun
- 静态系统的matlab仿真,仿真得出一个幅度调制的输入输出波形。-Static system s matlab simulation, the simulation obtains an amplitude modulation the input output wave shape.
tongxingailun
- 利用Matlab对通信系统仿真的基本思想和方法; 利用MATLAB的集成仿真环境Simulink对双边带幅度调制系统进行仿真 -Matlab simulation of communication systems using the basic ideas and methods integrated simulation environment using MATLAB Simulink bilateral system
R_qfsk_feature
- qfsk瞬时幅度,瞬时相位,瞬时频率,qfsk瞬时幅度,瞬时相位,瞬时频率-qfsk instantaneous amplitude, instantaneous phase, instantaneous frequency, qfsk instantaneous amplitude, instantaneous phase, instantaneous frequency
1
- 信号幅度调制与解调 和 希尔伯特变换与单边带幅度调制 -Amplitude modulation and demodulation and Hilbert Transform and single sideband amplitude modulation
Fudutiaozhi
- 通信电路中幅度调制调制单元multisim电路图。-Modulation amplitude modulation communication circuit unit multisim circuit.
identify
- 通信信号的调制信息包含在信号的瞬时幅度、相位、频率的变化之中,不同的信号其频谱也呈现不同的特征,通过提取瞬时幅度、相位、频率以及频谱的参数统计特征,可以识别不同的通信信号。通常是利用对瞬时幅度、瞬时相位,瞬时频率和信号功率谱进行某种变换而得到可以明显区分各种信号的特征参数。-Communication signal modulation information is contained in the signal instantaneo
xianxing
- 基于matlab线性幅度调制系统的仿真设计-Matlab linear amplitude modulation system based on the simulation design
dsb-ssb-am-
- 单边带调制 双边带调制 幅度调制源代码 检验过了可以用的-Bilateral single-sideband amplitude modulation with the source code can be used
Communicatiexperiment-procedure
- 1.通过脉冲幅度调制与解调实验,加深理解脉冲幅度调制与解调的特点. 2.通过PAM系统实验,掌握PAM系统的电路组成与工作原理,建立PAM通信系统的概念。 3.通过验证抽样定理实验,加深理解和掌握抽样定理。 -1. Through the pulse amplitude modulation and demodulation experiment, deepen our understanding of pulse ampl
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- 随着信息容量的增加和频率资源的稀缺,为提高单位频带利用率,在微波通信系统中越来越多地采用多电平多相位的复杂信号调制方式,尤其是正交幅度调制(QAM)得到了大量的应用,从早期的4QAM到今天的16QAM。高阶QAM调制大容量数字微波通信系统为了保证服务质量,降低误码率,-long with the increase of information capacity and frequency resource scarcity, for i