hanningchazhi

NMF在对Iris数据集上进行将为处理。(NMF:dimension reduction in the dataset Iris)

OFDM communication simulink

说明：  用遗传算法解决tsp问题，matlab程序，很好很有用哦(algorithm for multi- objective optimization. It is a very e&reg ective algorithm but has been generally criticized for its computational complexity,)

说明：  虹膜识别matlab的源代码用到霍夫曼变换(iris recognization)

matlab source code for adaptive threshold

计算传送带的滑动率,绘制出滑动率效率图线(Calculation of the Sliding rate of sending belt)

辨识信号白噪声的产生，新手必看。希望对大家帮助(Identification signal generating white noise, Xinshoubikan)

减采样实例 增采样实例 线性插值实例 改变采样率实例(Reduce the sampling instance By sampling instance Linear interpolation examples Instance of changing the sampling rate)

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说明：  ：该文首先研究了单认知用户能量检测算法的检测性能和检测灵敏度与检测时长和噪声短时间内平均功率波 动性之间的关系，得出检测性能和检测灵敏度随噪声短时间内平均功率波动性的增大而急剧下降的结论，在低信噪 比时尤为明显；针对检测性能和检测灵敏度随噪声短时间内平均功率波动性的增大而急剧下降，提出了基于多用户 协同能量检测算法。仿真表明，在低信噪比环境下，即使噪声短时间内的平均功率存在较大的波动性，只要适当地 增加协同检测的用户数，仍可获得较为准确的检测性能。(In this paper, detection performance and detection sensitivity with detection duration and noise average power fluctuation in short time is investigated firstly. Performance accuracy and detection sensitivity drop quickly with noise average power fluctuation increasing and it is worse when signal-to-noise ratio lower. Considering the characteristic, a novel new energy detection algorithm based on cooperative is presented. Simulations show that the proposed scheme improves antagonism of noise average power fluctuation in short time and gets a good detection performance as long as increasing the number of cooperative detection users.)