flying-control-law

SIM868_RF_Design_Application Note_V1.00.pdf

《福建电网黑启动试验研究 周宁水电厂－大唐宁德电厂黑启动系统试验》word版本，项目汇报材料(" Fujian power grid black start test of Zhouning Hydropower- Big Tang Ningde Power System Black Start Test" word version of the project report material)

半二次优化算法，研究。软阈值公式推导。最早的一篇论文。非常有参考价值。(Half-quadratic optimization algorithms, research. Soft threshold formula derivation. The earliest paper. Very valuable reference.)

关于地震偏移方法中相移法的详细描述，对于初学者很有帮助。(Migration of seismic data by phase shift)

传感器网络由大量能量有限的微型传感器节点组成.因此,如何保证在足够覆盖监测区域的同时延长网络的寿命,是一个需要解决的重要问题.为了达到这一目标,一种广泛采用的策略是选出部分能够足够覆盖监测区域的节点作为工作节点,同时关闭其他冗余节点.提出了一个数学模型,使得只要已知监测范围和节点感知半径的比值,就可以计算出达到服务质量期望所需要的节点数量.需要指出的是:与大部分研究覆盖的文献不同,该研究不基于节点的位置信息,因此可以极大地降低硬件成本,并且减少节点获得和维护位置信息的开销.模拟实验结果表明:在随机部署条件下,服务质量期望与实验所得到的实际覆盖度的误差不大于服务质量期望的2％ 而对于相同的服务质量期望和实际覆盖度,计算所得的工作节点数量与实验所得的工作节点数量的误差小于计算数量的5％,这表明推导出的节点数量与服务质量期望之间的关系与模拟实验的结果相吻合.该结果可以广泛应用于传感器网络的节点部署、拓扑控制等领域中.()

这是一部写给在校计算机专业学生的书 如果没有看到这本书 你可能会茫然无措的度过学习阶段(This is a book written for computer major students If you don t see this book You may be at sea through the learning phase)

马铁犹-计算流体动力学，一本介绍CFD很好的书，希望大家有用(Ma Teyou-CFD, hope the book can help you.)

。归纳和讨论了智能微电网的控制理论，将控制策略划分为电网跟随控制和电 网形成控制两大类，每一类同时又包含了交互式及非交互式控制思想，给出了清晰的定义和判断标准， 并提出智能微电网控制策略未来的发展方向。(Analysis was made to its system configuration and operation characteristics, the control theory of intelligent microgrid summarized and discussed to divide the control strategy into grid-following and grid-forming control two categories, each of which included interactive and non interactive control thinking with clear definition and determinant standard. This paper raised the microgrid control strategy in the future.)

中文摘要 正交频分复用（ OFDM ， Orthogonal Frequency Division Multiplexing）是当前一种非常热门的通信技术。它即可以被看作是一种 调制技术，也可以被看作是一种复用技术。由于它具有抗多径衰落和频谱 利用率高的特点，因此被广泛应用于高速数字通信领域，比如应用于IEEE 802.11a无线局域网（WLAN）的物理层等等。 我的毕业设计的核心任务是：采用 FPGA 来实现一个基于OFDM 技术 的通信系统中的基带数据处理部分，即调制解调器。其中发射部分的调制 器包括：信道编码（Reed-Solomon 编码），交织，星座映射，FFT和插 入循环前缀等模块。我另外制作了相应的解调器，可以实现上述功能的逆 变换。 另外，我还对OFDM技术， IEEE 802.11a的标准文献，基于Simulink 的 OFDM 模型和仿真，ALTERA 公司的技术和 IP Core 的使用等方面进 行了研究。这些在文章中都有体现。 (Abstract Orthogonal frequency division multiplexing (OFDM, Orthogonal the Frequency Division, Multiplexing) is a very popular communication technology. It can be seen as a Modulation technique can also be seen as a multiplexing technique. Because of its resistance to multipath fading and spectrum High utilization characteristics, and is widely used in high-speed digital communications, such as used in IEEE 802.11a wireless LAN (WLAN) physical layer. The core mission of my graduation project: FPGA to implement a technology based on OFDM Communication systems in baseband data processing part, ie the modem. These emission part of the modulation Includes: channel coding (Reed-Solomon coding), interleaving, constellation mapping, FFT and interpolation Into the cyclic prefix modules. I also produced a corresponding demodulator can achieve the inverse of the above functions Transformation. In addition, OFDM technology, the IEEE 802.11a standard literature, based on Simulink )

说明：  经过二十余年的快速发展， 空间激光通信的研究重心逐渐从高精度ATP分系统向高速 率通信分系统转移 紧密跟踪空间激光通信的国际发展最新动态，从通信带宽和链路功率两个方面， 针对通信发射单元、接收单元和信道特性，分析了提高空间激光通信传输速率的技术难度与途径．分 别阐述了波长1 550 nm、基于EDFA 功放和前放技术，空间相干技术，光偏振复用技术．光波分复用 技术的基本原理、性能指标及关键技术，为高速率空间激光通信提供了技术参考(After more than 20 years the rapid development of space laser communications research center of gravity gradually transferred to the high-speed communication subsystem from the high-precision ATP subsystems closely track the latest developments of the international development of space laser communications, communication bandwidth and link power of two. communications transmitter unit, receiver unit and channel characteristics, technical difficulty and ways to improve the transfer rate of space laser communications. Described wavelength of 550 nm, based on EDFA amplifier and put technology, spatial coherence, optical polarization multiplexing. The basic principles of optical wavelength division multiplexing technology, performance indicators and key technologies, and provide a technical reference for high-rate space laser communications)