搜索资源列表
f_ifft
- OFDM中的关于快速傅立叶变换的个人设计的MATLAB的算法，比较经典的 ！-OFDM on the Fast Fourier Transform personal design MATLAB algorithm, more classic!
fft512
- 采用基2算法的512点快速傅里叶变换，可以运用于ofdm等方面-The 512-point fast Fourier transform of the radix-2 algorithm, can be used in ofdm
Ten
- 第十章 MATLAB 图像正交变换 10.1 正交变换通用算子 10.2 傅立叶变换 10.2.1 傅立叶变换的原理 10.2.2 傅立叶性质 10.2.3 二维离散傅立叶变换（ 2DDFT ） 10.2.4 快速傅立叶变换（ FFT ） 10.2.5 傅立叶变换的研究与应用 10.3 离散余弦变换 10.3.1 DCT 变换矩阵 10.3.2 dct2 函数和 dctmtx 函数 10.4 Walsh- Hadamard 变换
OFDM_FDM_DAB_DSL_PSK_QAM_IFFT
- PERFORMANCE ANALYSIS OF OFDM Orthogonal Frequency-Division Multiplexing (OFDM) — essentially identical to Coded OFDM (COFDM) — is a digital multi-carrier modulation scheme, which uses a large number of closely-spaced orthogonal sub-carriers. Ea
Disfrct
- 离散分数阶傅里叶变换，可以处理非平稳信号，也可以很好的对抗多普勒频移，用在OFDM系统中尤为重要。-Discrete fractional Fourier transform, can handle non-stationary signal can also be very good against the Doppler frequency shift, used in the OFDM system is particularly important.
cFFT
- CFFT is a radix-4 fast Fourier transform (FFT) core with configurable data width and a configurable number of sample points in the FFT. Twiddle factors are implemented using the CORDIC algorithm, causing the gain of the CFFT core to be differen
gaussQAM_snr
- 通信信号中编解码技术的研究，通过生成OFDM信号，经过快速傅里叶变换与反变换，最后用16QAM解调，计算信噪比。-Communication signal encoding and decoding techniques, but by generating OFDM signals, through the fast Fourier transform and inverse transform, and finally with 16QAM demodulation, signal to n
dct-precoded-SLM-method-for-PAPR-reduction
- dct precoded SLM method for PAPR reduction High Peak to Average Power Ratio (PAPR) is still a most important challenge in Orthogonal Frequency Division Multiplexing (OFDM) system. In this paper, we propose a Discrete Cosine Transform (DCT) p
implementation-of-iFFT_in_OFDM_systems
- Implementation of inverse fast fourier transform in ofdm
ofdm2
- 实现了 正交频分复用OFDM的仿真，包括循环前缀的添加 和傅里叶变换 其中调制解调用了QPSK-Realize the orthogonal frequency division multiplexing (OFDM simulation, including the circulation of the prefix add and Fourier transform one demodulation used QPSK
FRFT
- 给出了分数阶傅里叶变换的具体实现程序，阶数可调。该程序实现是根据一篇通信学报上的论文做的。同时提供了OFDM系统在不同信道估计技术下的误码率以及多径信道下的性能。对于想研究基于分数阶傅里叶变换的OFDM系统的人有一定帮助。-The codes for fractional fourier transform (frft) and its inverse way are given according to a published paper in Journal of Communication
ofdm
- vhdl code for inverse fourier transform
basic_ofdm_inter
- basic ofdm with interlever: The transmitter section converts digital data to be transmitted, into a mapping of subcarrier amplitude and phase. It then transforms this spectral representation of the data into the time domain using an Inverse D
OFDM simulation matlab
- This file simulates OFDM using various modulations schemes The user chooses whether to use BPSK or QPSK ar 16-QAM. Then the code proceeds by inserting Cyclic Prefix and Pilot Signals This is followed by FFT (Fast Fourier Transform) A channel is simul
OFDM
- 用MATLAB对OFDM系统进行了仿真分析。包括信道调制方式16QAM、快速傅立叶变换、循环前后缀及信道函数窗函数等，最后计算了系统的误码率，毕设资料，非常珍贵。- MATLAB OFDM system for the simulation. the simulation uses OFDM each function module, Including 16 channel modulation QAM, Fast Fourier Transform, revolving around pr
OFDM
- OFDM系统调制与解调，采用快速傅里叶变换，内含CP-OFDM system modulation and demodulation, using fast Fourier transform, containing CP
ofdm
- 正交频分复用（OFDM）是一种通过快速傅里叶变换实现的多载波宽带数字调制技术。相比一般的数字通信系统。它具有频带利用率高和抗多径干扰能力强等优点，因而适合于高速率的无线通信系统。正交频分复用 OFDM 是第四代移动通信的核心技术。论文首先简要介绍了OFDM基本原理。在给出OFDM系统模型的基础上,用MATLAB语言实现了整个系统的计算机仿真并给出参考设计程序。-Orthogonal frequency division multiplexing (OFDM) is a fast Fourier
OFDM
- Channel estimation techniques for OFDM systems based on a pilot arrangement are investigated. Channel estimation based on a comb type pilot arrangement is studied through different algorithms for both estimating the channel at pilot frequencies and i
qei-V7.3
- Fractional Fourier transform computing, The commonly used digital signal modulation based on artificial neural network, Including single sideband, double sideband, suppressed carrier and quadruple.
PST部分传输序列法
- PTS的基本思想是：将输入的OFDM符号X，分割成V个互不重叠的独立的子序列Xv，每个子块向量大小相等且子块中没有继承原符号相应位置的取值为0。经过N点快速傅里叶逆变换后获得时域信号xv，再与相位旋转因子系数bv相乘，最后将每个子块的结果求和。然后将使PAPR最小的旋转因子的最佳组合作为边带信息传送给接收机以恢复信号。 在PTS方法中，可以通过改变子序列的分割方式降低系统计算复杂度和改善系统性能。有三种常用的分割方法：相邻分割、伪随机分割和交织分割。(The basic idea