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Description: 介绍了VHDL 语言在正负脉宽数控调制信号发生器中的具体应用,给出了仿真
波形,说明了实现电子电路的自动化设计( EDA) 过程和EDA 技术在现代数字
系统中的重要地位及作用.
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Size: 134975 |
Author: zyhstrive@126.com |
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Description: 安捷仑的数字调制信号发生器E4438用于很多通信系统的开发过程中。本代码可以用于通过网络接口或GPIB接口向E4438下载被调制数据-Ansett in 2000 digital modulation signal generator E4438 used in many communications systems development process. The code can be used by the network interface or E4438 GPIB interface to download data to be modulated
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Size: 85992 |
Author: mamaodeng@126.com |
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Description: 对常见的调制信号在软件无线电的通用平台下进行调制解调。所有信号均通过正交分解后，在一个同用的平台上进行调制，然后通过各自的解调算法解调。-right common modulation radio signals in the software under a common platform for modulation and demodulation. All signals are orthogonal decomposition, the same one used on the platform for modulation and demodulation through their respective demodulation algorithm.
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Size: 231424 |
Author: 追风 |
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Description: 通讯中的QPSK调制信号，用于matlab教程-newsletter QPSK modulation signal for Matlab Guide
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Size: 1024 |
Author: fmj |
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Description: 调制信号的识别，可以通过各种调制的功率谱不同来识别，但这种方法在小信噪比下，性能不好，通过循环功率谱来识别，仿真表明在小信噪比下有很好的性能-modulation signal identification, can be modulated through the power spectrum to identify different, but this approach in a small signal to noise ratio, poor performance, cycle power spectrum to identify, in a small simulation shows a good SNR performance
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Size: 7168 |
Author: 向兔兔 |
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Description: 本文介绍了QAM调制、解调和判决原理，讨论了QAM的误码率性能，并在SystemView下对QAM调制、解调系统进行了仿真，观察并分析了原始输入信号、调制信号、解调信号、星座图以及QAM信号的功率谱图。-QAM modulation, demodulation and sentencing principle, the QAM BER performance, and right under the SystemView QAM modulation, demodulation system for simulation, observation and analysis of the original input signal, signal modulation, demodulation signal constellation map and QAM signals in the power spectrum.
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Size: 124928 |
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Description: 产生15种模拟及数字调制信号函数。参数说明：type－调制信号种类,total_time－信号总时间长度,fc－载频,fs－抽样频率,symbol_rate－符号率-have 15 analog and digital modulation signal function. Parameter Description : type-modulated signal types,'04-Signal total time length, fc-carrier frequency, fs-sampling frequency, symbol_rate-Symbol Rate
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Size: 1024 |
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Description: 模拟调制信号产生，am,ssb,dsb.fm,comb-analog modulation signal generator, am, SSB, dsb.fm, comb
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Size: 4096 |
Author: 正当 |
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Description: 用matlab语言实现QPSK调制信号产生-using Matlab language QPSK modulation signal generator
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Size: 1024 |
Author: 王为 |
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Description: 一般周期调制信号下的模拟ppm信号matlab仿真-general cycle modulation signal simulation ppm Matlab Signal Simulation
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Size: 1024 |
Author: 王正刚 |
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Description: 该程序能够产生一个脉冲调制信号，信号为复数解析类型，实部满足狄拉克脉冲函数-the procedure can have a pulse modulation signals, signal analysis for complex types, meet the real Dirac pulse function
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Size: 1024 |
Author: cuixu |
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Description: 基于matlab实现的循环谱估计算法，可以对具有循环平稳特点的信号进行参数估计，如直扩信号和周期调制信号。-based on the cycle of Matlab achieve spectral estimation algorithm, be right circle with a smooth characteristics of the signal to estimate the parameters, such as DS signal and modulation signal cycle.
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Size: 1024 |
Author: maguoning |
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Description: 软件无线电中数字调制信号的自动识别，，，信号自动识别的可一-software radio digital modulation signal, the automatic recognition, and automatic signal recognition of a look
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Size: 114688 |
Author: sunny_girl |
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Description: 偏移四相移相键控调制，也就是OQPSK，输出信号为OQPSK调制信号的复包络-Offset four-phase phase shift keying modulation, that is, OQPSK, the output signal for the OQPSK modulated signal complex envelope
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Size: 1024 |
Author: 傲然寒风 |
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Description: 用MATLAB产生FSK调制信号
1．实验要求：
（1）随机产生一个包含十个元素的数组，该数组中的元素非0即1，用作FSK信号的输入数据。
（2）对该数组中的二进制数进行FSK调制，0调制在5000Hz上，1调制在8000Hz上，码元速率为200码元/秒。
（3）画出所产生的FSK信号的时域图形和频域图形。
-Using MATLAB generated FSK modulation signal 1. Experimental requirements: (1) a randomly generated array contains 10 elements, the array of elements of non-0 or 1 for FSK signals in the input data. (2) of the array of binary for FSK modulation, 0 modulation in the 5000Hz, 8000Hz Modulation in one, the symbol rate of 200 yards million/sec. (3) draw FSK signal generated by the time domain and frequency domain graphics graphics.
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Size: 1024 |
Author: 杨青禾 |
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Description: 在无线网络的接收机端，对16进制的正交幅度调制信号进行软解调， 这种软解调方式比硬解调会提高2-3dB-Receiver in the wireless network client on the 16-band signal of the quadrature amplitude modulation demodulator soft, this soft than hard demodulation demodulator will increase 2-3dB
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Size: 198656 |
Author: 白雪 |
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Description: ％BPSK载波调制信号的生成及其频谱分析
％输入：数据率/仿真时间/中频载波频率/系统采样率
％输出：BPSK信号的时域波形及其频谱- BPSK modulation signal generation and spectrum analysis Input: data rate/simulation time/IF carrier frequency/system output sampling rate: BPSK signals in time-domain waveform and its spectrum
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Size: 1024 |
Author: 王星 |
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Description: 第一步是计算输人信号单边功率谱密度（ESD）。使用快
％速傅里叶（FFr）算法将信号从时域转换到频域。因为FFr算法的输出是离散谱，而这
％里我们需要的是连续谱，因此需要引人不同的比例因子来实现从离散谱到连续谱的转换。
％在第二步中，我们利用迭代算法计算出相对于特定阂值的ESD的最高和最低频率，从而
％估算出被检测信号所占用的带宽。这种算法同时适用于基带信号和已调制信号。最后，
％在第三步中，我们给出了输出图形的原代码。-The first step is calculating the input signal unilateral power spectral density (ESD). The use of fast Fourier speed (FFr) algorithm for the signal conversion from time domain to frequency domain. FFR algorithm because the output is a discrete spectrum, which we need is a continuous spectrum, so the need for food of different scale factor to achieve from the discrete spectrum to continuous spectrum conversion. In the second step, we use iterative algorithm to calculate a specific threshold in relation to the ESD of the highest and lowest frequency, thus estimated to be occupied by the signal detection bandwidth. This algorithm applies to both baseband signal and modulation signals. Finally, in the third step, we give the graphical output of the original code.
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Size: 2048 |
Author: jiangyue |
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Description: 通过各种调制的功率谱不同来识别调制信号的类型(The type of modulation signal is identified by power spectrum)
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Size: 6144 |
Author: 秘密10
|
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Description: 基于神经网路的六种调制信号识别，备注详细。(Modulated signal identification)
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Size: 3072 |
Author: sxyyxs |
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