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Description: 在基于视频内容的多媒体查询与检索系统中,经常希望用静态图像来表示视频内容,在视频点播中,有时需要视频服务器提供一种快进、快退的功能。提供了一种提取I帧的方法,并对PCR,DTS,PTS时间信息进行了讨论-Video content-based multimedia query and retrieval system, often wish to use static images to said video content in video-on-demand, the video server is sometimes necessary to provide a fast-forward, rewind functions. Provides a method of extraction of I-frame, and PCR, DTS, PTS time information discussed
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Author: 骑士 |
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Description: 降低OFDM系统中PAPR的PTS改进算法—双层次相位法。可行。出CCDF比较图-Reduce the PAPR of OFDM system PTS improved algorithm- double the level of phase-based method. Feasible. Comparison of the CCDF
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Size: 19456 |
Author: xiaoai |
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Description: 分别用pts和选择性映射slm的方法变得降低ofdm峰值平均功率比的papr 源程序-Pts respectively and selective mapping method slm become lower peak-average power ratio of OFDM PAPR source
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Size: 2048 |
Author: 丛容 |
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Description: 降低OFDM中PAPR的方法PTS的MATLAB源码
-Reduce the PAPR of OFDM method in the MATLAB source PTS
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Size: 1024 |
Author: 高启 |
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Description: 用PTS的方法来降低ofdm 系统的papr 效果不是太理想 希望能够抛砖引玉
-PTS method used to reduce the PAPR of OFDM system rather than the effect of too idealistic hope to start
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Size: 1024 |
Author: 巩跃洪 |
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Description: 自适应梯形求积法 特别适合被积函数为强峰的定积分 此程序修改余地很大-Adaptive trapezoid quadrature method was particularly suited to the plot function for the strong peaks of the definite integral of a large room for this procedure to amend
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Size: 1024 |
Author: 冯海霞 |
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Description: 降低OFDM的PAPR的PTS方法MATLAB仿真-OFDM PAPR Reduction PTS Method
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Size: 4096 |
Author: 张敏 |
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Description: 用PTS方法降低OFDM信号中高PAPR的MATLAB仿真源代码，很实用哦-PTS method used to reduce the high PAPR of OFDM signal simulation of the MATLAB source code, it is practical Oh
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Size: 4096 |
Author: 马颖 |
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Description: this code source implement the PTS method of papr reduction in mimo_ofdm
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Size: 2048 |
Author: mannoumaad |
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Description: 基于循环移位线性搜索的PTS方法降低OFDM系统中的PAPR-Rotate the line search based PTS method to reduce PAPR in OFDM system
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Size: 4096 |
Author: 宁磊 |
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Description: 降低MIMO-OFDM中PAPR的PTS方法-Reduce the PAPR of the PTS method
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Size: 654336 |
Author: terry |
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Description: 在N=128时采用次优化迭代算法的PTS法与普通PTS法的PAPR性能比较。仿真参数：QPSK调制，V=4，P=4，取 。从程序的运行时间可知，采用次优化迭代算法，PTS法的复杂性可以大大降低。-In the N = 128 used sub-optimal iterative algorithm method and the general PTS PTS PAPR performance comparison method. Simulation parameters: QPSK modulation, V = 4, P = 4, to take. We can see from the program' s running time, using sub-optimal iterative algorithm, PTS method can greatly reduce the complexity.
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Size: 2048 |
Author: 宫约 |
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Description: simulating PAPR reduction with PTS method in STBC MIMO OFDM
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Size: 1024 |
Author: Andang |
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Description: PTS法降低OFDM系统峰值平均功率比的源代码-OFDM system PTS method to reduce peak to average power ratio of the source code
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Size: 1024 |
Author: cjc |
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Description: 降低峰均功率比的程序，pts方法，调试通过-Reduce the peak to average power ratio of the program, pts method, debugging through
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Size: 1024 |
Author: 于平 |
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Description: 关于OFDM中PTS降低PAPR的一篇很好的文章，用窗函数法改进原始PTS方法-About PTS OFDM reduces the PAPR of a good article, improved PTS method original window function method
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Size: 652288 |
Author: 尤文 |
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Description: 在OFDM通信系统中用于降低PAPR的PTS方法，完全自己编写-In the OFDM communication system of PTS method for reducing PAPR, complete their preparation
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Size: 1024 |
Author: matmativan |
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Description: 2,4,8,16子块数时PTS方法降低OFDM系统PAR的性能分析-PTS method to reduce the performance of OFDM system
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Size: 3072 |
Author: num113 |
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Description: pts method for papr reduction
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Size: 1024 |
Author: priti
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Description: 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 of the partial transmission sequence method (PTS) is to split the input OFDM symbol X into V independent non-overlapping subsequences Xv, each of equal size and no inheritance of the corresponding position of the original symbol in the sub-block to take the value of 0. After N-point fast Fourier inversion to obtain the time domain signal xv, and then multiply with the phase rotation factor bv, and finally sum up the results of each sub-block . The best combination of rotation factors that minimizes the PAPR is then transmitted to the receiver as sideband information to recover the signal.
In the PTS method, the system computational complexity can be reduced and the system performance improved by changing the segmentation of the subsequence. There are three commonly used segmentation methods: adjacent segmentation, pseudo-random segmentation, and interleaved segmentation.)
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Size: 3072 |
Author: zsdslehqm |
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