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通信中的编码,检测,识别,同步的一些问题,同时还有调制-Coded communication, detection, identification, synchronization of a number of issues, but also modulation
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基本调制识别。识别2ask,2fsk,2psk,4ask,4fsk,4psk。-The basic modulation recognition. Identification 2ask, 2fsk, 2psk, 4ask, 4fsk, 4psk.
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装置中阅读器、应答器均有无线传输汉字的功能,载波频率≤5MHz,调制方式任选。不得使用现有射频识别卡或用于识别的专用芯片。装置中的耦合线圈为圆形空芯线圈,用直径不大于1mm的漆包线或有绝缘外皮的导线密绕10圈制成。线圈直径为6.6±0.5cm(可用直径6.6 cm左右的易拉罐作为骨架,绕好取下,用绝缘胶带固定即可)。线圈间的介质为空气。两个耦合线圈最接近部分的间距定义为D。
阅读器、应答器只能使用耦合线圈耦合,不得使用其他耦合方式。
阅读器采用外接单电源供电,具有通过无线方式实现“写”与
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modulation type identification methodes using wavelet transform methode for adaptive
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随机产生一QPSK调制信号,通过一随机产生的低通滤波器,然后使用LMS算法实现了系统哦你的辨识。-Randomly generate a QPSK modulation signal generated by a random low-pass filter, and then use the LMS algorithm of the system Oh, your identification.
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数字通信信号调制方式自动识别技术研究 博士论文-Digital communication signal modulation Automatic Identification Technology doctoral dissertation
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一篇质量不错的关于无线衰落信道中的调制识别、信道盲辨识和盲均衡的技术研究硕士论文,希望有所帮助!-A good quality of the modulation on wireless fading channel identification, blind channel identification and blind equalization technology research master' s thesis, Hope that helps!
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16QAM实现程序,实现其星座图识别,调制和解调,并加载在高斯白噪声信道上-16QAM to achieve the program achieve its constellation identification, modulation and demodulation, and load in the white Gaussian noise channel
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matlab中有关调制识别的程序说明,对仿真识别很有帮助-In MATLAB on modulation recognition program, very helpful for simulation and identification
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在SNR=10db,干扰为高斯噪声的条件下进行信号调制类型的自动识别。-SNR = 10db, interfere with the automatic identification of the type of signal modulation under Gaussian noise conditions.
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调制识别是非协作通信中的关键技术之一,在电子对抗、软件无线电等领域
应用十分广泛。该过程介于信号检测与解调之间,由于对传输信号没有过多的先
验信息以及在接收端有很多未知的参数,例如:信号功率,载波频率和相位偏移,
时间信息等,导致对调制方式的盲识别是一项很困难的任务。此外,实际中存在
多径衰落、频率选择性和时变信道等问题,使得这项任务变得更具有挑战性。
-The modulation recognition is one of the key technologies of
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基于STBC编码的mimo—ofdm源程序,其中包括QSK调制,IFFT,以及接收端的判别,最后得到误码率信噪比的曲线-STBC coding based mimo-ofdm source, including QSK modulation, IFFT, and the receiving end of the identification, the final signal to noise ratio of the curve obtained BER
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2PSK-32PSK、QAM的调制程序集合和识别,用于通信系统调制、仿真、星座图识别-2PSK-32PSK, QAM modulation procedures for the collection and identification, for communication systems modulation, simulation, constellation identification
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模拟调制方式进行调制识别时用到的识别参数,用来区分FM和别的调制方式。-Analog modulation scheme used when the identification parameter identification, and the other is used to distinguish FM modulation.
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PSK信号调制,信号分析与识别,PSK信号调制,信号分析与识别。-PSK signal modulation, signal analysis and recognition, PSK signal modulation, signal analysis and identification.
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基于神经网络的模拟调制识别,首先是模拟信号的产生,再对所获的信号进行训练,最后进行识别-Analog modulation recognition based on neural network, the first is the generation of analog signal, then to training of received signal, finally for identification
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产生脉内Frank相位编码调制信号,并对其进行平方、四次方变换,利用四次方FFT结果为单频信号的特点完成调制识别,最后绘图观察其瞬时相位曲线。-Generating pulse code modulation signal within Frank polyphase, and its square, four square transformed by FFT results for the fourth power single-frequency signal modulation cha
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数字调制信号的产生与识别。产生数字调制信号,并汇出图像,比较直观。
通过分析解调的幅度、频率、相位来判断该信号的调制类型。-Generation and identification of digital modulation signals. Generates a digital modulation signal, and export the image, intuitive.
To determine the modulation type of the signal thro
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基于高阶累积量的调制格式识别,识别7种调制格式BPSK、QPSK、8 QAM、16QAM、32QAM、 64QAM -Higher-order cumulants modulation format identification, identify seven kinds of modulation formats BPSK, QPSK, 8PSK, 8QAM, 16QAM, 32QAM, 64QAM based
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对三种雷达信号调制类型的识别,包括单载频 线性调频和相位编码,并做时频分析-The identification of three kinds of radar signal modulation, including single carrier linear frequency modulation and phase encoding, and time-frequency analysis
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