Search - Matlab FFT co

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[matlab] Test_Code1 DL : 0: 已知一个序列x(n)=0.5cos(0.55*pi*n)+cos(0.45*pi*n),时域FFT分析其频谱。（1）使用不同宽度的矩形窗截断该序列为M点，取M分别为：20，40，160,观察不同长度对频谱影响；（2）使用哈明窗和凯泽窗重做；（3）对三种窗的结果进行分析比较；（4）总结窗类型和长度对频谱分析的影响。 -Known a sequence x (n) = 0.5cos (0.55* pi* n)+ Cos (0.45* pi* n), time-domain FFT analysis of its spectrum. (1) use a different width of the rectangular window of the sequence for M cut-off point, take M are as follows: 20,40,160, observing the impact of different lengths of the spectrum (2) the use of Hamming window and the Kaiser window redo (3 ) on the three windows analyzed and compared the results (4) summarize the type and length of window for spectrum analysis.
Update : 2025-02-17 Size : 1kb Publisher : fg
[Program doc] Analysis_of_channel_estimation_methods_for_OFDMA. DL : 0: OFDMA, Orthogonal Frequency Division Multiple Access is a broad band communication method. Here channel estimation is more crucial. Based on the FFT size used for OFDM transmission method that many number of channel co-efficients are to be estimated and received signals are to be equalized using this co-efficients. Various methods trying to improve the performance and fastness are proposed. As part of master thesis various methods have be studied and evaluated using the WiMAX 802.16 system.
Update : 2025-02-17 Size : 2.06mb Publisher : muruga
[Special Effects] code DL : 1: 基于FFT变换、DCT变换、HT变换、小波变换和矢量量化技术的图像压缩的Matlab实现。-Based on the FFT transform, DCT transform, HT transform, wavelet transform and vector quantization image compression technology, the Matlab implementation.
Update : 2025-02-17 Size : 4kb Publisher : Anna
[matlab] adctest_maxim0911 DL : 0: 通用高速ADC动态性能测试MATLAB code，包括SNR，SINAD，ENOB，THD，SFDR，并绘制频域幅值曲线-MATLAB code for high speed ADC dynamic specific tests, including SNR, SINAD, ENOB，THD，SFDR，and so on.
Update : 2025-02-17 Size : 2kb Publisher : kam kou