where {Xk} are data symbols, andTis the OFDM symbol time. The data symbolsXkare typically complex and can be from any digital modulation alphabet (for example, QPSK, 16-QAM, 64-QAM, etc.). Note The MATLAB®implementation of the discrete Fourier transform normalizes the output of the IFF...
2.仿真效果预览 matlab2022a仿真结果如下: 3.MATLAB核心程序 Assuming the channel response is invariant during one frame pilot_sym = pilot_generator(128); % Generate the pilot symbols, all in BPSK modulation pilot_syms=pilot_sym'; pilot_syms=pilot_syms(:)'; idx=0; for snr = 0:4:40 idx=...
pn_code_temp=generate(h1); pn_code=2*pn_code_temp-1; pn_code=reshape(pn_code,61,[]); modulate_data_pn=zeros(61,2*modulate_length); fori=1:modulate_length modulate_data_pn(:,(2*i-1))=modulate_data_temp(:,i); modulate_data_pn(:,2*i)=pn_code(:,i); end modulate_data_pn...
Refer to thecomm.OFDMModulatorSystem object™ which can also be used to implement the CP-OFDM modulation. F-OFDM Receiver with No Channel The example next highlights the basic receive processing for F-OFDM for a single OFDM symbol. The received signal is passed through a matched filter, foll...
✅作者简介:热爱科研的Matlab仿真开发者,修心和技术同步精进,matlab项目合作可私信。 🍎个人主页:Matlab科研工作室 🍊个人信条:格物致知。 更多Matlab仿真内容点击👇 智能优化算法神经网络预测雷达通信无线传感器电力系统 信号处理图像处理路径规划元胞自动机无人机 ...
% 速率恢复 rateRecover = nrRateRecoverLDPC(chOut,num_bit,CodeRate,rv,modulation,nlayers); % LDPC译码 % maxNumIter:解码迭代的最大次数,指定为正整数标量。 当所有奇偶校验都满足时,或在 maxNumIter 迭代次数之后终止解码。 maxNumIter = 25; decBits = nrLDPCDecode(rateRecover,bgn,maxNumIter); %...
Orthogonal Frequency Division Multiplexing (OFDM) is the multicarrier digital modulation technique used by modern wireless communications systems such as 5G and LTE cellular, and WiFi.
更多Matlab完整代码及仿真定制内容点击👇 智能优化算法神经网络预测雷达通信无线传感器电力系统 信号处理图像处理路径规划元胞自动机无人机 🔥 内容介绍 OFDM(正交频分复用)是一种在无线通信系统中广泛使用的调制技术,它能够有效地提高频谱利用率和抗多径干扰能力。LTE-FDD(长期演进-频分双工)是一种主流的移动通信标...
The premise behind SC-FDMA is to use the concept of OFDM, but precode the input signal such that the OFDM output mimics the characteristics of a single-carrier modulated signal within the same transmission bandwidth. Because SC-FDMA uses OFDM as the main transmission modulation scheme, the comm...
基于MATLAB实现 OFDM的仿真.doc,PAGE 1 PAGE 33 PAGE 32 摘要 本文介绍了OFDM基本原理,基于Matlab详细讨论了如何构建一个完整的OFDM动态仿真系统。本文的目的是用Matlab代码仿真OFDM信号的产生、发送、信道、与接收。以OFDM系统在数字视频广播(DVB)应用为例进行仿真。此