cognitive-channel-allocation

随着并联机构学理论的日益成熟，并联摇摆台以其大刚度、高精度和重载等优点，广泛应用于机械、航海和航天等领域。其中，以车辆模拟台的应用最为广泛。车辆在行驶过程中由于受到路况等扰动因素的影响，会产生横摇、纵倾、转艏、前冲、横移和升降共6种位姿的运动，而通过六自由摇摆台能将车辆的这些运动真实的再现出来。 本文以项目——六自由度重型摇摆台的研制为依托，在对国内外六自由度摇摆台的研究现状做了比较深入、系统分析的基础上，对车辆重型摇摆台与负载锁定结构进行了分析优化，主要的研究内容如下： 首先，对六自由度重型摇摆台进行运动学建模，分析、优化机构在六种独立姿态及部分耦合位姿情况下支撑杆的运动范围，最终确定了支撑杆合理的转角空间和上下铰链座的结构，提高了机构的运动学、动力学性能。 (With the development of theory of parallel mechanism, parallel plat quickly enters the international market for high stiffness、high precision and heavy load, which is widely used in mechanical、navigation and aviation, etc. Among these parallel plats, the vehicle simulator is the most widely used. Due to the disturbance factors of ups and downs of the different roads, vehicle has 6 degrees of freedom during its traveling movements, such as rolling、pitching、yawing、surging、swaying and heaving that can be simulated in the use of 6-DOF platform. Based on the project of heavy platform, this paper optimizes the platform and the load locking structure after the in-depth and systematic analysis of 6-DOF parallel plat at home and abroad, the main research contents are as follows: Firstly, this paper establish the kinematic modeling that is used to analyze the rotating range of the axis belonging to the supporting pole in many traveling conditions, such as one of six movements indepe)

网络录音盒系列资料之一：网络录音盒实现文档。本文档系本人毕业设计的论文部分，详细的介绍了一种嵌入式网络录音盒的设计与实现。所谓网络录音盒是指一种可以通过网络向远程的计算机提供录音盒所在位置的监听以及录音功能的网络设备。本人已经上传了录音盒相关的所有资料，为了方便用户选择自己所需的内容，本人将所有资料分为三部分上传：1、文档；2、源码；3、测试过程。(network data recording boxes series one : Network box on document recording. This document is designed my graduation thesis, a detailed introduction of a sound recording box Embedded Network Design and Implementation. The so-called network recording box refers to a network through a remote computer to the provision of recording the location of the box and recording wiretapping functional network equipment. I have uploaded the recording box all the related information, in order to facilitate the user to choose the content they need, I will be all the information is divided into three parts Upload : 1, the document; 2, the source; 3, the testing process.)

说明：  适用于电力系统模型搭建的hvdc线路，可以用于分析hvdc的稳定性也可以用于搭载其他部件的研究(HVDC lines suitable for power system models can be used to analyze the stability of HVDC and to carry other components)

ct107d的一个简单实用原理图，实际实用，感觉效果不错(ct107d schematic diagram of a simple and practical, the actual practical effect of feeling good)

实现FIR滤波器的设计，举了两个例子带通和低通滤波器，并进行了结果分析(Realization of FIR filter design, to cite two examples of band-pass and low pass filter, and results analysis)

说明：  该文档详细描述了一个停车场管理系统设计方案，非常详细，值得一看(The document described in detail a car park management system design, very detailed and worth a visit)

卡尔曼1960年原著论文,英文原版,详细的理论推倒,具有较高的学术价值(Kalman 1960 original papers, the English original, detailed theoretical overturned, with high academic value)

技嘉8GPNXP DUO主板电路图 只有PDF，内有原理图，比较详细，需要线路板图的勿下！(8GPNXP DUO GIGABYTE motherboard circuit only PDF, there are schematic, more detailed, the need for circuit boards not under the map!)

说明：  Owing to the broad application value of audio watermarking in remote transmission and mobile extraction, it is very important to study watermarking approaches against A/D and D/A conversion. Based on wavelet decomposition and cepstrum technology, an audio watermarking algorithm is proposed where the low-frequency wavelet coefficients are chosen for cepstrum transforming. Then, the obtained cepstrum data shows stable for watermark hiding by the methods of edging data cutting and statistical mean modification. The synchronization is not required in the algorithm. Experimental results show that the proposed algorithm can resist on the attack of A/D and D/A successfully with features of large capacity and zero bit error. It will be helpful for the mobile audio in secure broadcast and management in the

说明：  very important part in vlsi fabrication. Lithography process