關于U盤開發中所用到的協議，SCSI命令和BULK-only傳輸協議的約定
上傳時間： 2014-01-18
上傳用戶：wqxstar
Watermarking schemes evaluation Abstract鈥擠igital watermarking has been presented as a solution to copy protection of multimedia objects and dozens of schemes and algorithms have been proposed. Two main problems seriously darken the future of this technology though. Firstly, the large number of attacks and weaknesses which appear as fast as new algorithms are proposed, emphasizes the limits of this technology and in particu-lar the fact that it may not match users expectations. Secondly, the requirements, tools and methodologies to assess the current technologies are almost non-existent. The lack of benchmarking of current algorithms is bla-tant. This confuses rights holders as well as software and hardware manufacturers and prevents them from using the solution appropriate to their needs. Indeed basing long-lived protection schemes on badly tested watermarking technology does not make sense.
標簽： Watermarking watermarking evaluation presented
上傳時間： 2013-12-04
上傳用戶：thinode
在數據編程中，一個用于SCSI設備信息檢測的源代碼。
標簽： 數據編程
上傳時間： 2014-01-02
上傳用戶：杜瑩12345
This is a code of Pseudo-Arc Length Continuation Method , the method can be used for solving the nonlinear equations, the principle can re found in some text books. In the code,I prove the agreement of the code with other methods
標簽： Continuation Pseudo-Arc the solving
上傳時間： 2013-12-03
上傳用戶：xzt
The Hilbert Transform is an important component in communication systems, e.g. for single sideband modulation/demodulation, amplitude and phase detection, etc. It can be formulated as filtering operation which makes it possible to approximate the Hilbert Transform with a digital filter. Due to the non-causal and infinite impulse response of that filter, it is not that easy to get a good approximation with low hardware resource usage. Therefore, different filters with different complexities have been implemented. The detailed discussion can be found in "Digital Hilbert Transformers or FPGA-based Phase-Locked Loops" (http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4629940). The design is fully pipelined for maximum throughput.
標簽： e.g. communication Transform important
上傳時間： 2017-06-25
上傳用戶：gxf2016
This project features a full-hardware sound compressor using the well known algorithm: IMA ADPCM. The core acts as a slave WISHBONE device. The output is perfectly compatible with any sound player with the IMA ADPCM codec (included by default in every Windows). Includes a testbench that takes an uncompressed PCM 16 bits Mono WAV file and outputs an IMA ADPCM compressed WAV file. Compression ratio is fixed for IMA-ADPCM, being 4:1. PLEASE NOTICE THAT THIS CORE IS LICENSED UNDER http://creativecommons.org/licenses/by-nc-sa/3.0/ (Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported). That means you may use it only for NON-COMMERCIAL purposes.
標簽： full-hardware compressor algorithm features
上傳時間： 2014-01-14
上傳用戶：Shaikh
The FPGA can realize a more optimized Digital controller in DC/DC Converters when compare to DSPs. In this paper, based on the FPGA platform, The theoretical analysis, characteristics, simulation and design consideration are given. The methods to implement the digital DC/DC Converters have been researched. The function module, state machine of digital DC/DC controller and high resolution DPWM with Sigma- Delta dither has been introduced. They are verified by experiments on a 20 W, 300 KHz non-isolated synchronous buck converters.
標簽： Converters controller optimized Digital
上傳時間： 2013-12-31
上傳用戶：tzl1975
This is a paper describing Pulse Compression technique implemented in the Weather Radar system. This paper presents data examples from the radars and contrasts the use of pulse compression waveforms with more traditional non-modulated pulsed waveforms.
標簽： This Compression implemented describing
上傳時間： 2017-08-25
上傳用戶：問題問題
最新版本的Linux內核，支持Intel、Alpha、PPC、Sparc、IA-64、ARM、MIPS、Amiga、 Atari和IBMs/390等，還支持32位大文件系統。而在Intel平臺上，物理內存最大支持可以達到64GB。加強對IDE和SCSI硬件系統的支持，并增強了對USB設備和3D加速卡的支持。雖然并不像人們期望的那樣有很大更新，但也好的多了。如果你還在使用舊版本的內核，趕快更新吧，絕對不會讓你失望！ Linux內核更新是越來越快了，可能由于Linux的普及，大家都開始關注了，各種安全隱患也越來越多。支持Intel、 Alpha、PPC、 Sparc、IA-64 、ARM、MIPS、Amiga、Atari和IBM s/390等，還支持32位大文件系統。而在Intel平臺上，物理內存最大支持可以達到64GB。加強對IDE和SCSI硬件系統的支持，并增強了對 USB設備和3D加速卡的支持
上傳時間： 2013-12-22
上傳用戶：caozhizhi
We introduce a sub-cell WENO reconstruction method to evaluate spatial derivatives in the high-order ADER scheme. The basic idea in our reconstruction is to use only r stencils to reconstruct the point-wise values of solutions and spatial derivatives for the 2r-1 th order ADER scheme in one dimension, while in two dimensions, the dimension-by-dimension sub-cell reconstruction approach for spatial derivatives is employed. Compared with the original ADER scheme of Toro and Titarev (2002) [2] that uses the direct derivatives of reconstructed polynomials for solutions to evaluate spatial derivatives, our method not only reduces greatly the computational costs of the ADER scheme on a given mesh, but also avoids possible numerical oscillations near discontinuities, as demonstrated by a number of one- and two-dimensional numerical tests. All these tests show that the 5th-order ADER scheme based on our sub-cell reconstruction method achieves the desired accuracy, and is essentially non-oscillatory and computationally cheaper for problems with discontinuities.
標簽： 高精度格式
上傳時間： 2016-01-13
上傳用戶：ccsdcczd
