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Description: matlab环境下的DWT的水印算法编程-Matlab environment DWT of the watermarking algorithm Programming
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Size: 2048 |
Author: 万仔 |
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Description: 降低正交频分复用ofdm系统的峰值平均功率比的仿真-Reduce the Orthogonal Frequency Division Multiplexing OFDM system peak-average power ratio simulation
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Size: 1024 |
Author: lily |
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Description: 本实验要求开发一个计算哈尔小波的j-尺度二维DWT程序。并要求对图像 7.1进行如图7.8（a）所示的哈尔小波3-尺度二维DWT。同时也要求编写一个计算哈尔小波的二维逆DWT程序。-The experiment calls for the development of a calculation of the Haar wavelet j-scale two-dimensional DWT procedure. And called for the image in Figure 7.1 to 7.8 (a) Haar wavelet as shown in 3- scale two-dimensional DWT. Also requested to prepare a calculation of two-dimensional Haar wavelet inverse DWT process.
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Size: 1041408 |
Author: jhm |
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Description: 本程序是离散小波变化的一级小波分解，图像效果图为本人亲自所作！-DWT
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Size: 274432 |
Author: 代江艳 |
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Description: OFDM is a new scheme for data transmission with several advantageous features. In this report a survey of all existing OFDM systems are being presented. Starting with simple FFT based OFDM the other variants like DCT-OFDM, Interspersed OFDM and DWT based OFDM are studied.-OFDM is a new scheme for data transmission with several advantageous features. In this report a survey of all existing OFDM systems are being presented. Starting with simple FFT based OFDM the other variants like DCT-OFDM, Interspersed OFDM and DWT based OFDM are studied.
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Size: 373760 |
Author: satish |
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Description: DESIGN OF SIMULINK MODEL FOR
OFDM AND COMPARISON OF FFTOFDM
AND DWT-OFDM.
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Size: 145408 |
Author: karim abass |
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Description: This the OFDM-DWT mmodel for OFDM modulation and demodulation. it has DWT and IDWT models-This is the OFDM-DWT mmodel for OFDM modulation and demodulation. it has DWT and IDWT models
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Size: 10240 |
Author: mj |
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Description: Here, wavelets are used in Orthogonal frequency division multiplexing. Wavelets are small waves having amplitude increase starting zero and reduces back to zero. In conventional OFDM, IFFT is used at the transmitter side and FFT is used at receiver. In case of Wavelet OFDM, IFFT is replaced with IDWT and DWT is used instead of FFT. In OFDM cyclic prefix is added to reduce inter channel interference and inter carrier interference. By using wavelet transform, cyclic prefix is not needed. Hence, it has high spectral efficiency. Wavelet transform the signal one domain to time and frequency domain. -Here, wavelets are used in Orthogonal frequency division multiplexing. Wavelets are small waves having amplitude increase starting zero and reduces back to zero. In conventional OFDM, IFFT is used at the transmitter side and FFT is used at receiver. In case of Wavelet OFDM, IFFT is replaced with IDWT and DWT is used instead of FFT. In OFDM cyclic prefix is added to reduce inter channel interference and inter carrier interference. By using wavelet transform, cyclic prefix is not needed. Hence, it has high spectral efficiency. Wavelet transform the signal one domain to time and frequency domain.
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Size: 1024 |
Author: Salini |
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Description: 使用小波变换实习OFDM 系统，通过的信道有高斯白噪声和瑞利信道，还有双选信道。(Using wavelet transform intern OFDM system, the channel through Gaussian white noise and Rayleigh channel, as well as dual-channel.)
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Size: 1024 |
Author: 农家小女孩
|
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Description: MIMO-OFDM using DWT with BPSK Modulation
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Size: 11264 |
Author: ismi |
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