Description: 利用MATLAB对扩频信号进行检测和参数估计，结果表明本方法具有在低信躁比下检测的优势-The use of MATLAB for spread spectrum signal detection and parameter estimation results show that this method is in the low than under the letter impatient edge detection Platform: |
Size: 2048 |
Author:王将 |
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Description: 频谱感知是认知无线电的一个重要前提，而能量检测法则是比较成熟的频谱感知算法。它可以有效地凡发现频谱孔，使得认知无线电与周围通信环境相适应-Spectrum sensing cognitive radio is an important prerequisite, and the law of energy detection of the spectrum is a more mature perception algorithm. Where it can be found in the spectrum hole, making cognitive radio communication with the surrounding environment to adapt to Platform: |
Size: 3675136 |
Author:张玉 |
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Description: 利用通信系统中调制信号的循环平稳特性,对频谱空洞进行检测,提升频谱感知技术在低信噪比下的性能。实验结果表明:与传统能量检测方法相比,采用循环特征检测方法改善了认知无线电中频谱空洞的检测能力。-Based on the cyclostationarity of modulation signals, spectrum hole is detected, aiming at the improve- ment of the performance of spectrum sensing in low SNR situation. The results show that comparing with the tra- ditional energy detection technique, cyclostationarity-based spectrum sensing technique has greatly improved the detective ability in cognitive radio. Platform: |
Size: 200704 |
Author:曹蒙 |
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Description: 这是一个Matlab实现的能量检测程序，通过能量预测减少整体的错误率，从而实现对协作频谱感知的优化。它在认知无线电网络的自适应环境中表现很好，可以更好地填补频谱空洞。(This is a Matlab implementation of energy detection procedures, through the energy prediction to reduce the overall error rate, in order to achieve the optimization of cooperative spectrum sensing. It performs well in the adaptive environment of cognitive radio networks and can better fill the spectrum hole.) Platform: |
Size: 1024 |
Author:geng1992
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Description: 对人脸识别的基本进程进行综述,介绍了空间转换及识别的方法；采用低通滤波处理策略,在总结和分析这些处理方法的基础上,运用填孔处理和边缘检测的人脸识别方法进行人脸识别工作；将几种边缘检测算法与人脸识别相结合进行检测,其识别率有可观的提升。(The basic process of face recognition is reviewed, and the method of space conversion and recognition is introduced. On the basis of summarizing and analyzing these processing methods, the face recognition method is carried out by using the face recognition method of hole processing and edge detection, and several edge detection algorithms are combined with face recognition based on the low pass filtering processing strategy. The detection rate has a considerable increase in recognition rate.) Platform: |
Size: 2003968 |
Author:伯爰虞 |
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