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vm
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
- 2010-02-05 01:56:27下载
- 积分：1
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CMOS摄像头的智能监控系统
介绍了一种基于低成本CMOS摄像头的智能监控系统,实现了现场监控的实时化、智能化。系统可自动判别危险程度,可分别提供绿色、黄色和红色报警信息,并驱动相关附属设备工作。针对图像传输过程中的噪声,系统采用了对噪声图像使用局部算子的滤波技术来提高图像质量。根据对静态图像进行三原色分离后误差域的研究,达到背景与图像分离的目的,成功实现了图像的获取和处理。在低成本投入下,以简单的配置和简便的操作达到了高性能监控系统的功能。(Introduce a low-cost CMOS camera-based intelligent monitoring system, realize the scene in real-time monitoring and intelligent. The system can automatically determine the degree of risk, they can provide green, yellow and red alarm information, and drive the work-related ancillary equipment. For image transmission in the process of noise, system noise images of the use of local filtering operator technology to improve image quality. Based on static images RGB domain after the separation error research, background and images to achieve the purpose of separation, the successful implementation of the image acquisition and processing. Input in the low-cost, simple configuration and easy to operate to achieve a high-performance monitoring system.)
- 2008-07-11 19:58:43下载
- 积分：1
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128-Point-fft-ok
这是一个外文文档,在fft的设计方面有较大的改进,可以当作大家的参考(This is a file writed by english,which has been optimized in fft.It is a good choice for the ones who are working on dsp and fpga. )
- 2012-01-14 19:19:03下载
- 积分：1
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KelompokSOA
this is about software architecture
- 2010-05-12 03:07:22下载
- 积分：1
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CourseManage
学生课程管理系统需求分析 包含总体设计 数据库设计 详细分析 DFD图 等(Student course management system requirements analysis includes detailed analysis of the overall design of the database design diagrams DFD)
- 2011-06-11 19:05:20下载
- 积分：1
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MT-009
模数转换器(ADC)将模拟量——现实世界中绝大部分现象的特征——转换为数字语言，以
便用于信息处理、计算、数据传输和控制系统。数模转换器(DAC)则用于将发送或存储的
数据，或者数字处理的结果，再转换为现实世界的变量，以便控制、显示信息或进一步进
行模拟处理。(Analog-to-digital converter (ADC) analog- the vast majority of real-world phenomena characteristic- converted into digital language, in order for the information processing, computing, data transmission and control system. A digital-to-analog converter (DAC) is used to transmit or store the data, or the result of the digital processing and then converted to the real world variables, in order to control, displays a message or further subjected to analog processing.)
- 2013-03-20 17:18:07下载
- 积分：1
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k-19
Digital bird kit circuit design
- 2011-10-11 13:30:29下载
- 积分：1
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HVAC part 01-By Eng.Ramy Ghoraba
说明： HVAC part 01-By Eng.Ramy Ghoraba
- 2020-06-25 19:40:02下载
- 积分：1
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AStudyOfIntelligentPreviewControlMethod
说明： 介绍了一种路径跟踪的智能预瞄控制方法，并介绍了智能预瞄控制器的原理、结构及其设计过程。
(This paper presents a path tracking control method for intelligent preview, and introduced the intelligent preview controller principles, structure and design process.)
- 2020-12-28 01:49:03下载
- 积分：1
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POW-0056-Rev0-LR
Xiangjiaba - Shanghai ±800 kV UHVDC transmission project
- 2012-01-24 23:13:22下载
- 积分：1
