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调制识别的传统算法,
零中心归一化瞬时幅度的谱密度的最大值
零中心归一化瞬时幅度绝对值得标准偏差
零中心非弱信号段瞬时相位非线性分量绝对值的标准偏差
零中心非弱信号段瞬时相位非线性分量的标准偏差
零中心归一化非弱信号段瞬时频率绝对值得标准偏差-Traditional modulation recognition algorithm, the zero center owned by an instantaneous amplitude of the spectral dens
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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)对该数组中中的二进制数进行FSK调制,0调制在5000Hzz上,1调制在8000Hz上,码元速率为200码元/秒。 (3)画出所产生的FSK信号的时域图形与频域图形。
-FSK signal using MATLAB. The experimental requirements: (1) randomly generate a 10 element
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包含OFDM系统所有模块,采用高斯信道,可调整频偏,采用32QAM调制方式-Contains all modules of the OFDM system, using the Gaussian channel, adjustable frequency offset, the use of 32QAM modulation mode
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采用FSK调制方式,用于仿真高斯噪声、单音干扰等多种干扰环境下跳频系统性能及误码率-FSK modulation, frequency hopping system performance and bit error rate for the simulation of Gaussian noise, single tone jamming and other interference environment
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直接序列扩频Matlab程序源码 直接序列扩频通信能有效地抵抗来自信道中的窄带干扰。在一个直扩通信系统中,扩频是通过伪噪声序列(PN)对发送的信息数据进行调制来实现的。在在接收端,原伪噪声序列与所收信号的的相关运算可将窄带干扰扩展到DS信号的整个频带,使干扰等效为幅度较低频谱较平坦的噪声;同时,将DS信号解扩,恢复原始信息数据。 可直接使用。
-Direct Sequence Spread Spectrum Matlab program source code direct sequence
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MIMO_OFDM联合仿真,采用正交频分复用技术和多载波调制。-MIMO_OFDM co-simulation using orthogonal frequency division multiplexing and multi-carrier modulation.
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Fm modulation using the matlab code. find the modulated singnal and its frequency spectrum
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OFDM是一种新型的调制方式,称为正交频分复用。阐述了OFDM的原理、系系统组成和优良性质及其在数字电视传输和混合光纤电缆网(HF,C)中的应用。
-OFDM is a new type of modulation called orthogonal frequency division multiplexing. Elaborated the principle of the OFDM, the composition and good nature of the particle sys
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digital communication in frequency flat or frequency selective channel with orthogonal modulation
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基于ZC序列的TDDLTE同步信号频率校正,基于OFDM多载波调制技术-Based the ZC sequence TDDLTE synchronization signal frequency correction, OFDM based multi-carrier modulation technique
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minimum shift keying modulation with orthogonal frequency division multiplexing
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UWB-Run from editor debug(F5)-PPM(pulse position modulation) of
UWB monocycle and doublet waveforms.
This m file plots the time and frequency waveforms for PPM 1st and 2nd derivative
equations used in UWB system analysis. Fudge factors are
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移频复调制ZOOMFFT能以指定的、足够高的采样频率分析频率轴上任一窄带内信号的频谱结构,在序列变换点数相同的情况下,ZOOMFFT能获得更高的频率分辨率-The frequency shift the complex modulation ZOOMFFT to specified former spectrum of the signal within a narrow band structure, a sufficiently high sampling frequency analysi
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单载波频域均衡 MMSE psk调制 matlab环境-Single-carrier frequency domain equalization MMSE psk modulation matlab environment
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对已知信号进行SSB调制,然后观察其频率域特性-Known signal SSB modulation, and then observe its frequency domain characteristics.
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单载波 BPSK QPSK调制下的PLL功能实现 实现频率相位的跟踪-Single carrier BPSK QPSK modulation the PLL frequency phase tracking
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16QAM的Matlab仿真程序,不仅仅是依照通信原理课本的框图编写,还加上此种调制方式在Ka频段的受天气影响的性能仿真-16 QAM of Matlab simulation program, is not only in accordance with the principle of communication of the block diagram of textbook compilation, and the modulation mode in Ka frequency band
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qpsk解调与调制 包括滤波器 环路滤波器等多个过程内容-carrier frequency for modulation and demodulation
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无线通信中,瑞利信道的仿真,考虑到了多普勒频移,还有信号的调制,编码等-Wireless communication, the Rayleigh channel simulation, taking into account the Doppler frequency shift, the signal modulation, coding, etc.
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*紅外測試程序,用單片機通過發射管發射38K的調製頻率碼,由一體化接收並解碼由發光管顯示。
*正常情況下,由於反射和高靈敏度接收,LED4(P1.3)一直閃爍,可以用黑色紙片完全遮擋接收頭使
*之不能接收到發射管的信號,這是LED4熄滅。說明功能性正常-* Infrared testing procedures, MCU through the launch tube launch 38K code modulation frequency is received and decod
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