Description: 用MATLAB 模拟仿真数字调制4PSK求误码率,误信率并配有GUI-MATLAB simulation using digital modulation 4PSK seek error rate, the rate of false beliefs and equipped with GUI Platform: |
Size: 106496 |
Author:涂成林 |
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Description: 用数字调制技术中的fsk调制方法，编写了一段调制程序，用来还不错就上传。-using digital modulation technique of fsk modulation method, the preparation of a modulation procedures used were pretty good on the upload. Platform: |
Size: 1024 |
Author:马卓 |
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Description: 用matlab仿真实现了25 kHz 带宽内同时传送总共48 kbit/s 的两路语音(每路速率9. 6
kbit/s) 和两路数据信息(速率分别为19. 2 kbit/s 和9. 6 kbit/s) , 仿真结果表明达到了较好的误码性能。并比较了4 种数字调制方式下O FDM 系统的误码性能。-using Matlab Simulation bandwidth of 25 kHz simultaneous transmission within a total of 48 kbit/s 2 Road Voice (rate of 9 per road. 6 kbit/s) and two road data information (rate of 19. 2 kbit/s and 9. 6 kbit/s), the simulation results indicate achieve a better BER. And comparison of four types of digital modulation mode O FDM system BER. Platform: |
Size: 26624 |
Author:林志宏 |
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Description: 本程序可以对一个模拟信号进行数字化，使用的是PCM即脉冲编码调制，其结果是将样值转化为8位PCM编码。现今语音编码大多数采用这类编码方法-This procedure can be an analog signal to digital, using pulse code modulation or PCM, and the result is kind of value will be translated into eight PCM coding. Most of the current speech coding to adopt this type of coding method Platform: |
Size: 2048 |
Author:徐健 |
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Description: 现代通信系统要求通信距离远、通信容量大、传输质量好。作为其关键技术之一的调制解调技术一直是人们研究的一
个重要方向。讨论和仿真实现了基于FPGA的数字化DPSK调制解调系统。用Altera公司的FPGA开发平台Quartus II 3.0实现了一
个对基带信号的DPSK调制解调系统模型的仿真。-Modern communication systems require communication distance, communication capacity, transmission quality. As part of its one of the key technologies of modem technology is that people have been an important direction of research. Discussion and simulation of FPGA-based digital DPSK modulation and demodulation system. FPGA using Altera Platform: |
Size: 446464 |
Author:zhanghuan |
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Description: 用matlab对基带数字系统进行仿真。整个系统描述了信号的发送和调制过程。其中调制采用16QAM，并且采用基带传输，不必调制到载频上。系统总采用了高斯信道，在接受端采用解调并与发送型号进行比较得到误码率。-Using matlab to base-band digital system simulation. Describes the overall system signal to send and modulation process. Which modulation using 16QAM, and uses baseband transmission without modulation to the carrier frequency. Total system using Gaussian channel demodulator used in the receiving end and be sent models to compare the bit error rate. Platform: |
Size: 4096 |
Author:dcping |
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Description: This Simulink model simulates as an example the transmission and reception of random digital data modulated with GMSK. The purpose of this model is to illustrate how part of the GSM transmission and reception works. It also measures the BER, affected by an AWGN channel. Platform: |
Size: 7168 |
Author:Ted |
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Description: Implementing quadrature modulation and demodulation of analog signals in digital signal processing, using MATLAB Platform: |
Size: 10240 |
Author:song |
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Description: 利用matlab对am，dsb，ssb，ask，fsk，bpsk信号进行正交调制解调仿真，并在不同信噪比条件下对其数字信号进行了误码率的计算。-Using matlab to am, dsb, ssb, ask, fsk, bpsk orthogonal signal modulation and demodulation simulation, and signal to noise ratio in different conditions of its digital signal to the bit error rate calculations. Platform: |
Size: 5120 |
Author:马浩飞 |
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Description: An 8-QAM communications channel simulation in Simulink, constructed from a 16-QAM model and using an I,Q correlation receiver.
QAM (quadrature amplitude modulation) is a method of combining two amplitude-modulated (AM) signals into a single channel, thereby doubling the effective bandwidth. QAM is used with pulse amplitude modulation (PAM) in digital systems, especially in wireless applications. In a QAM signal, there are two carriers, each having the same frequency but differing in phase by 90 degrees (one quarter of a cycle, from which the term quadrature arises). One signal is called the ‘I’ signal, and the other is called the ‘Q’ signal. Mathematically, one of the signals can be represented by a sine wave, and the other by a cosine wave. The two modulated carriers are combined at the source for transmission. At the destination, the carriers are separated, the data is extracted from each, and then the data is combined into the original modulating information. -An 8-QAM communications channel simulation in Simulink, constructed from a 16-QAM model and using an I,Q correlation receiver.
QAM (quadrature amplitude modulation) is a method of combining two amplitude-modulated (AM) signals into a single channel, thereby doubling the effective bandwidth. QAM is used with pulse amplitude modulation (PAM) in digital systems, especially in wireless applications. In a QAM signal, there are two carriers, each having the same frequency but differing in phase by 90 degrees (one quarter of a cycle, from which the term quadrature arises). One signal is called the ‘I’ signal, and the other is called the ‘Q’ signal. Mathematically, one of the signals can be represented by a sine wave, and the other by a cosine wave. The two modulated carriers are combined at the source for transmission. At the destination, the carriers are separated, the data is extracted from each, and then the data is combined into the original modulating information. Platform: |
Size: 11264 |
Author:Griffin Wright |
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Description: communication system is expected to increase the service, the quality improvement and also the capacity, using spread spectrum communication system is one of the method to fulfill that demand. This quality and capacity factor will depend on the number of user. In order to see the performance of the Wiener Filter on the MC-CDMA system, simulation method is used by increasing the Direct Sequence Spread Spectrum CDMA signal, with digital modulation QPSK Platform: |
Size: 249856 |
Author:hario |
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Description: OOK调制方式，使用matlab simulink数字调制与数字解调-OOK modulation, using matlab simulink digital modulation and digital demodulation Platform: |
Size: 13312 |
Author:cai |
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Description: 运用MATLAB 语言模拟实现了数字信号的ASK、FSK、PSK 调制与频谱分析-Simulation using MATLAB language realization of the digital signal ASK, FSK, PSK modulation and spectral analysis Platform: |
Size: 40960 |
Author:刘及 |
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Description: 设计了差分编码移相键控(2DPSK)调制解调系统的工作流程图,并利用 Matlab 软件对该系统的动态进行了模拟仿真。利用仿真的结果,从基带信号的波形图可以衡量数字信号的传输质量 由系统的输入和输出波形图可以看出,仿真实验良好 。-Design of a differential phase shift keying encoding (2DPSK) modulation and demodulation system working flow chart of the system using Matlab software to simulate the dynamics simulation. Using simulation results, from the baseband signal waveform can be measured digital signal transmission quality by the system' s input and output waveforms can be seen that simulation is good. Platform: |
Size: 11264 |
Author:zhao |
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Description: 本文首先对各种通信信号进行了理论分析，在此基础上针对数字调制信号采用了基于决策论方法的调制方式识别算法，并利用MATLAB软件进行了计算机仿真。本文的调制识别算法是基于决策论方法，该方法具有运算量小，识别效果好等优点-Firstly, the various communication signals are analyzed theoretically, on the basis adopted for digital modulation method based on decision theory, modulation recognition algorithm, and using MATLAB software, the computer simulation. This modulation recognition algorithm is based on the decision theory method, which has the computational load, and good recognition results Platform: |
Size: 487424 |
Author:betty |
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Description: matlab的数字信号调制仿真-调制识别程序
本文首先对各种通信信号进行了理论分析， 在此基础上针对数字
调制信号采用了基于决策论方法的调制方式识别算法， 并利用
MATLAB 软件进行了计算机仿真。本文的调制识别算法是基于决策论
方法， 该方法具有运算量小， 识别效果好等优点。-matlab simulation of digital signal modulation- modulation recognition procedure in this article a variety of communication signals first theoretical analysis on the basis of the recognition algorithm based on decision theory methods of modulation for digital modulation signals and a computer simulation using MATLAB software . The modulation recognition algorithm is based on decision theory, the method of computing a small amount of good recognition effect. Platform: |
Size: 1357824 |
Author:王萦 |
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Description: The digital simulation system using MATLAB to illustrate the
Quadrature Amplitude Modulation (QAM). QAM is a modulation scheme to convey two digital bit
streams which can be converted to symbol signals by modulating the amplitudes and the phase of two
carrier waves. First, we transmit a signal composed of two different 1024 bit streams and modulate
them using QAM. Next, at the receiver, we demodulate them using an orthogornality of two carriers
and matched filters. We also conduct the error analysis of two sampled signals in order to observe how
the probability of making bit errors changes depending on the inverse of Power Spectral Density (PSD)
of Additive White Gaussian Noise (AWGN). Platform: |
Size: 713728 |
Author:khang
|
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Description: There exist many textbooks that provide an in-depth treatment of various topics in digital modulation techniques.
Most of them underscore different theoretical aspects of the design and performance analysis of digital
modulation techniques. Only a handful of books provide insight on how these techniques can be modeled and
simulated. Predominantly, such books utilize the sophisticated built-in functions or toolboxes that are already
available in software like Matlab. These built-in functions or toolboxes hide a lot of background computations
from the user thereby making it difficult, especially for a learner, to understand how certain techniques are
actually implemented inside those functions. Platform: |
Size: 6261014 |
Author:mkaremm80 |
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Search - digital modulation using matlab