射线反演

说明：  个人社区类的，切勿作商用，后果自负，如有雷同还望告之(Personal community should not be used for commercial purposes, and the consequences should be borne by oneself.)

一个小日记本的程序 挺好用的，试一试，大家参考参考-a small diary of this process is very good to use, try your information.

典型测试系统3 (1) 如下图所示的IEEE 9节点电力系统： 2．元件参数 （1） 线路参数 线路号 长度（km） ro(Ω/km) xo(Ω/km) bo(1/Ωkm) L1 25 0.131 0.4 2.98×10-6 L2 50 0.131 0.4 2.98×10-6 L3 45 0.105 0.393 3.04×10-6 L4 30 0.131 0.4 2.98×10-6 L5 35 0.105 0.393 3.04×10-6 L6 20 0.131 0.4 2.98×10-6 （2） 变压器参数 变压器 容量（MVA） 变比 Pk(kW) P0(kW) Uk% i0% T1 50 121/10.5 250 55 10.5 1.5 T2 80 121/10.5 410 98 10.5 1.5 T3 50 121/10.5 250 55 10.5 1.5 (3) 节点参数 节点名 类 型 P (MW) Q (MVar) 电压 相角 1 PQ 35 18 2 PQ 30 16 3 PQ 40 20 4 PQ 25 12 5 PQ 20 10 6 PQ 15 6 7 PV 40 1.05 8 PV 45 1.05 9 平衡点 1.05 0.0(Typical test system 3 (1) The IEEE 9-node power system shown in the following figure: 2. Component parameters (1) Line parameters Line number (km) ro (_/km) XO (_/km) Bo (1/_km) L1 25 0.131 0.4 2.98 x 10-6 L2 50 0.131 0.4 2.98 x 10-6 L3 45 0.105 0.393 3 3.04 x 10-6 L4 30 0.131 0.4 2.98 x 10-6 L5 35 0.105 0.393 3 3.04 x 10-6 L6 20.131 0.4 2.98 x 10-6 (2) Transformer parameters Transformer Capacity (MVA) Variable Ratio Pk (kW) P 0 (kW) Uk% i0% T1 50 121/10.5 250 55 10.5 1.5 T2 80 121/10.5 410 98 10.5 1.5 T3 50 121/10.5 250 55 10.5 1.5 (3) Node parameters Node Name Type P (MW) Q (MVar) Voltage Phase Angle 1 PQ 3518 2 PQ 3016 3 PQ 4020 4 PQ 2512 5 PQ 2010 6 PQ 156 7 PV 40 1.05 8 PV 45 1.05 9 Balance Point 1.05 0.0)

说明：  利用 Ｑｕａｒｔｕｓ　ＩＩ和 ＭｏｄｅｌＳｉｍ 软件，基于 ＥＰ２Ｃ３５芯片 ＦＰＧＡ 开发平台，通过 Ｖｅｒｉｌｏｇ－ＨＤＬ语言，完成了 Ｏ－ＱＰＳＫ 调 制解调器的设计。该设计具有结构简单占用芯片面积少便于生成ＩＰ核等优点。 电路与系统的仿真结果表明，所预期的功能均已实现，该方法适合在无线传感器 网络及低功耗通信集成电路设计中应用。(Using QuartusII and Modelsim software, based on ep2c35 chip FPGA development platform, the O-QPSK modem is designed by Verilog-HDL language. The design has the advantages of simple structure, less chip area and easy to generate IP core. The simulation results of the circuit and the system show that the expected functions have been realized, and the method is suitable for the design of wireless sensor networks and low-power communication integrated circuits.)

在控制系统中，由于某些系统不能直接实现所期望的性能，因此需要用系统校正的方法使其具有所期望的性能。本程序是基于频域法的串联校正，分为超前校正和滞后校正。-In the control system, because some systems can not directly achieve the desired performance, requiring a systematic method of correction to have the desired performance. This procedure is based on the frequency-domain method of series correction, divided into ahead of correction and lag correction.

说明：  数值方法课件 好好好好好好好好好好好好 (numerical method courseware good good good good good good good good good )

一个利用数据库的关联，来保护和隐藏网站地址的程序，可以用来做网站的友情连接栏目-use of a database linked to the protection and hidden Web addresses procedures can be used to make a Web site of friendship linking columns

掌握内存管理的页面淘汰算法 输入可用内存页面数和一个作业访问逻辑页号的序列，分别给存FIFO、LRU算法的缺页中断率（注：算法原理实现，不要求实际页面）。-master memory management algorithm pages out of the importation of a few pages available memory and a logic operation visit pages of the sequence, kept FIFO, the LRU algorithm missing pages interrupt rate (Note : The principles of achieving algorithm that does not require the actual pages).

说明：  c＋＋超级基础编程实例，适合小白入手，希望多多支持(C + super basic programming example, suitable for Xiaobai, hope to support a lot)

说明：  基于GPRMAX地质雷达正演模拟，各种管线响应(Forward Modeling of Geological Radar)