frequency_hopping

计算psnr，普通的4:0:0或者灰值图 有范围判断(calculate psnr format 4:0:0 or gray value picture judge for range)

预测程序，可以预测各种时间系列的数据：如股票、地震，降水，水文等等。(emd programmer)

说明：  基于MATLAB神经网络的工业现场数字字符识别，使用MATLAB工具，实现显示识别。(MATLAB Neural Network Based Character Recognition industrial field, use the MATLAB tools to achieve display identification.)

基于matlab编程的车辆燃油经济性计算包括图像的绘制等等(the simulation of fuel consumption of the vehicle)

kaplan-Meier估计,在可靠性数学中有一定的帮助，不知道能不能对大家有一些帮助，如果有错误，希望大家指正，并与我交流！(kaplan-Meier estimates, the reliability of mathematics is certainly helpful, not sure you can right some help, and if there are mistakes, we hope that correct, and I exchange with!)

为了最大限度地减少能源采集充电通信系统传输完成时间，各 传输调度方案已被提出。然而，他们并没有考虑这个问题，其中一个发射器可能会失败 之前完成传输。为广播与能量收集解决这个问题，传输调度 切换发射器进行了研究。在广播通信系统中包括两个发射器和两个用户。该 发射器获取能量和独立工作交替进行。传输调度问题转化为 最小化传输的完成时间，在能量的因果关系的约束，数据传输的限制，而 发射器的开关约束。发射器的开关被证明发射机不应该停止传输解决 之前切换到其他发射器和切换阈值应当是零。然后，一个最佳的发送策略是 基于对速度区域和发射器的开关机制，早期的作品提出。建议的最佳传输 政策可以达到更大的速度比区域若干种次优的传输策略。( To minimise transmission completion time in energy-harvesting rechargeable communication systems, various transmission scheduling schemes have been proposed. However, they did not consider the issue where a transmitter may fail before completing the transmission. To resolve this issue, transmission scheduling for broadcasting with energy-harvesting switching transmitters is studied. The broadcasting communication system consists of two transmitters and two users. The transmitters harvest energy independently and work alternately. The transmission scheduling problem is formulated as minimising the transmission completion time, under the energy causality constraint, the data transmission constraint, and the transmitter switching constraint. Transmitter switching is addressed by proving that a transmitter should not stop transmission before switching to the other transmitter and the switching threshold should be zero. Then, an optimal transmission policy is proposed based on earl)

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)

分析并实现了跳频信号的检测方法，用程序给出仿真结果(Analysis and implementation of frequency hopping signal detection method, using the program simulation results)

convertir ultra wide band

DCT变换1、 提取彩色图像，将图像大小限制为512*512*3； 2、 提取彩色图像三个颜色分量的矩阵，每个矩阵单独处理； 3、 将矩阵分为8*8的块，做DCT变换； 4、 提取每个块的一部分DCT系数做IDCT变换，显示基本图像； 5、 再提取每个块的一部分DCT系数做DCT反变换，得到增强层1，与前一次得到的数据叠加，得到质量更好的图像。 (DCT transform)