Search - matlab codes frequency modulation

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[Communication] 数字视频图像传输系统实现中几个问题的研究 DL : 0: MATLAB程序的仿真比较。随后，针对QPsK，详细讨论了其基本原理和具体的实现算法，并进行了仿真验证，然后选用HSP502巧数字上变频芯片和HSP50214B数字下变频芯片，设计了数字调制、解调器的实现方案。最后，作为对整个数字视频图像传输系统的宏观认识，利用M户JLAB中的实时建模仿真Simullnk库对典型的视频图像传输系统一数字视频广播系统(D vB)，进行了建模、仿真和初步的分析，结果表明:在高斯白噪声的传输环境下，系统采取的一系列抗干扰措施，包括内、外码级联的信道纠错编码和先进的调制技术(o FDM)等，保证了信源信息传输的有效进行。-MATLAB simulation comparison. Then, against QPsK to discuss in detail the basic principles and specific algorithm, a simulation test, and then choose the cleverest HSP502 figures HSP50214B frequency chips and digital down conversion chips, the design of digital modulation, demodulation for the realization of the program.MJLABSimullnk(D vB):Andean white noise transmission environment, the system adopted a series of anti-jamming measures, including internal and external codes Cascade Channel advanced error correction coding and modulation techniques (o FDM), ensuring a source of information for the effective transmission.
Update : 2008-10-13 Size : 8.2mb Publisher : lzy
[Communication] fm.m DL : 0: %fm.m %频率调制的Matlab演示程序. %被调信号为m(t)=sin(100t).- fm.m frequency modulation of Matlab demo program. transferred signal m (t) = sin (100t).
Update : 2025-02-19 Size : 1kb Publisher : 陈旭
[Program doc] 数字视频图像传输系统实现中几个问题的研究 DL : 0: MATLAB程序的仿真比较。随后，针对QPsK，详细讨论了其基本原理和具体的实现算法，并进行了仿真验证，然后选用HSP502巧数字上变频芯片和HSP50214B数字下变频芯片，设计了数字调制、解调器的实现方案。最后，作为对整个数字视频图像传输系统的宏观认识，利用M户JLAB中的实时建模仿真Simullnk库对典型的视频图像传输系统一数字视频广播系统(D vB)，进行了建模、仿真和初步的分析，结果表明:在高斯白噪声的传输环境下，系统采取的一系列抗干扰措施，包括内、外码级联的信道纠错编码和先进的调制技术(o FDM)等，保证了信源信息传输的有效进行。-MATLAB simulation comparison. Then, against QPsK to discuss in detail the basic principles and specific algorithm, a simulation test, and then choose the cleverest HSP502 figures HSP50214B frequency chips and digital down conversion chips, the design of digital modulation, demodulation for the realization of the program.MJLABSimullnk(D vB):Andean white noise transmission environment, the system adopted a series of anti-jamming measures, including internal and external codes Cascade Channel advanced error correction coding and modulation techniques (o FDM), ensuring a source of information for the effective transmission.
Update : 2025-02-19 Size : 8.2mb Publisher : lzy
[matlab] 2Tx_2Rx_STBC_MAP DL : 0: 该文件夹为空时块码－卷积码级联系统的仿真程序，天线配置为2发2收。主要程序的用途说明： mainMIMO_OFDMA_2Tx_Convcode.m: 主程序，设置各种参数 gendatabits.m: 生成原始信息比特数据的程序 conv_encoder.m: 卷积码编码器 interleave.m: 交织器 mod_2Tx_STBC_DFUSC_Convcode.m：调制程序 gen_SUI_CorrCIR.m: 生成信道冲击响应的程序 get_perfectCE_2x2.m: 生成理想信道估计值的程序 chanSUI_corr_2x2.m: 发送信号通过SUI信道的程序 addAWGN_2x2.m: 添加高斯白噪声的程序 dem_DFUSC_2x2_STBC.m: 接收端解调主程序 ls_freq.m: 频域LS算法 ls_time_2x2.m: 时域LS算法 iterative_detection_decoding_2x2.m: 级联MAP算法主程序 map_decoding.m: 卷积码MAP译码程序 b2s_logp.m: 符号LLR转化为比特LLR-folder to the space-time block codes-Convolutional Codes cascade system simulation program, antenna configuration for the two 2 admission. The main purpose procedures : mainMIMO_OFDMA_2Tx_Convcode.m : The main program, gendatabits.m set various parameters : Generating original bits of information data conv_encoder.m procedures : Convolution Encoder interleave.m : interleaver mod_2Tx_STBC_DFUSC_Convcode.m : gen_SUI_CorrCIR.m modulation procedures : Generation channel impulse response procedures get_perfectCE_2x2.m : Generation ideal channel estimation procedures chanSUI_corr_2x2.m : SUI transmitted signal through the channel addAWGN_2x2.m procedures : adding Gaussian white noise process dem_DFUSC_2x2_STBC.m : receiver demodulator main program ls_freq.m : frequency-domain algorithm ls_time_2
Update : 2025-02-19 Size : 22kb Publisher : leon
[Embeded-SCM Develop] CP0201 DL : 0: 等概率二进制码,循环码,跳频码,PPM-TH调制器,脉冲形成器,PPM-TH信号发送器。-Such as the probability of binary codes, cyclic codes, frequency-hopping code, PPM-TH modulation, pulse forming device, PPM-TH signal transmitter.
Update : 2025-02-19 Size : 4kb Publisher : 菜鸟
[matlab] ofdm_Powerline DL : 0: orthogonal frequency modulation matlab codes
Update : 2025-02-19 Size : 2kb Publisher : werneld egno
[matlab] Matlab-Source-Codes DL : 0: Generation of ASK: Amplitude shift keying - ASK - in the context of digital communication is a modulation process which imparts to a sinusoid two or more discrete amplitude levels 1. These are related to the number of levels adopted by the digital message. For a binary message sequence, there are two levels one of which is typically zero. Thus the modulated waveform consists of bursts of a sinusoid. Demodulation of ASK: ASK signal has a well defined envelope. Thus it is amenable to demodulation by an envelope detector. Some sort of decision-making circuitry is necessary for detecting the message. The signal, which is a binary sequence is recovered by using a correlator and decision making circuitry. Matlab Program for Frequency shift keying program for Quadrature Amplitude Modulation Matlab program for phase shift keying program for Quadrature Phase shift keying-Generation of ASK: Amplitude shift keying - ASK - in the context of digital communication is a modulation process which imparts to a sinusoid two or more discrete amplitude levels 1. These are related to the number of levels adopted by the digital message. For a binary message sequence, there are two levels one of which is typically zero. Thus the modulated waveform consists of bursts of a sinusoid. Demodulation of ASK: ASK signal has a well defined envelope. Thus it is amenable to demodulation by an envelope detector. Some sort of decision-making circuitry is necessary for detecting the message. The signal, which is a binary sequence is recovered by using a correlator and decision making circuitry. Matlab Program for Frequency shift keying program for Quadrature Amplitude Modulation Matlab program for phase shift keying program for Quadrature Phase shift keying
Update : 2025-02-19 Size : 3kb Publisher : punitha sp