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单向的地面数字电视广播，
由于缺乏回传机制，只能给用户提
供高质量的影音节目，满足基本的
互动需求，限制了新业务的推广和
新商业模式的采用。欧洲...
单向的地面数字电视广播，
由于缺乏回传机制，只能给用户提
供高质量的影音节目，满足基本的
互动需求，限制了新业务的推广和
新商业模式的采用。欧洲的DVB组
织在原有的DVB-T架构下，制订了
新的地面数字电视广播回传标准
DVB-RCT (Return Channel Terrestrial)
来支持互动服务。本文阐述了该标
准的关键技术及应用。-A one-way terrestrial digital television broadcasting, due to the lack of return mechanism, can only give users high-quality audio-visual programs to meet their basic needs of the interaction, limiting the promotion of new business and new business models adoption. The European DVB organization in the original DVB-T framework, the development of new terrestrial digital TV broadcasting standard return DVB-RCT (Return Channel Terrestrial) to support interactive services. In this paper the standard key technology and applications.
- 2022-12-23 06:10:03下载
- 积分：1
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聚类研究，实现了基于距离，基于密度和改进算法
聚类研究，实现了基于距离，基于密度和改进算法-clustering, based on the distance to achieve, based on density and improved algorithm
- 2022-08-04 06:43:41下载
- 积分：1
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CCD视频信号处理电路应用分析的文章，用adobe reader打开，描述CCD处理电路的设计...
CCD视频信号处理电路应用分析的文章，用adobe reader打开，描述CCD处理电路的设计-CCD video signal processing circuit article the application of the analysis, using adobe reader to open, to describe the design of CCD processing circuit
- 2022-07-01 11:26:41下载
- 积分：1
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ISO15693 2
ISO15693 2-3 中文协议（第14页起，即国标）-ISO15693 2-3 Chinese agreement (page 14 onwards, GB)
- 2022-02-04 22:52:55下载
- 积分：1
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本文介绍了梯形的一个仿射不变量，和明确的约束…
This paper introduces an affine invariant of trapezia, and the explicit constraint equation between the intrinsic matrix of a camera and the similarity invariants of a trapezium are established using the affine invariant. By this constraint, the inner parameters, motion parameters of the cameras and the similarity invariants of trapezia can be linearly determined using some prior knowledge on the cameras or the trapezia. The proposed algorithms have wide applicability since parallel lines are not rare in many scenes. Experimental results validate the proposed approaches. This work presents a unifying framework based on the parallelism constraint, and the previous methods based on the parallelograms or the parallelepipeds can be integrated into this framework.
Key words: invariant parallelism constraint camera calibration 3D reconstruction
- 2022-04-23 05:25:55下载
- 积分：1
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特点：
1． 双轴倾角传感器
2． 测量范围0.5g(±30 度)或者1g(±90 度)
3． 单极5V 供电，比例电压输出
4． 高分辨率双轴...
特点：
1． 双轴倾角传感器
2． 测量范围0.5g(±30 度)或者1g(±90 度)
3． 单极5V 供电，比例电压输出
4． 高分辨率双轴倾角传感器
5． 数字SPI 或模拟输出
6． 内置温度传感器
7． 长期稳定性非常好
8．高分辨率，低噪声，工作温度范围宽
优势：
长期稳定性好，温度特性优良
抗冲击能力强
应用：
双轴平台调平
倾斜测量
垂直方向的各种角度的测量
-Features: 1. Biaxial inclination sensor 2. Measuring range of 0.5g (± 30 degrees) or 1g (± 90 degrees) 3. Unipolar 5V power supply, the ratio of voltage output 4. High-resolution dual-axis inclination sensor 5. SPI digital or analog output 6. Built-in temperature sensor 7. 8 very good long-term stability. High-resolution, low noise, wide operating temperature range of advantages: long-term stability, excellent temperature characteristics of the application of anti-shock capability: dual-axis tilt platform leveling vertical measurement range of the angle measurement
- 2023-08-08 04:30:03下载
- 积分：1
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stresses the main content
重点介绍了Java概要文件的主要内容Java特性Java开发过程中引入的Java运行时环境相关技术Java
- 2022-09-01 20:35:03下载
- 积分：1
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这篇文章是对当前IEEE中的最新的无线传感器网络的新发展和新动向进行预测和说明...
这篇文章是对当前IEEE中的最新的无线传感器网络的新发展和新动向进行预测和说明
- 2023-02-13 06:35:04下载
- 积分：1
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CCD noise reduction technologies research article, using adobe reader to open, t...
CCD降噪技术的研究的文章，用adobe reader打开，描述CCD降噪原理-CCD noise reduction technologies research article, using adobe reader to open, to describe the principle of CCD noise
- 2022-01-24 17:15:56下载
- 积分：1
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boinc desktop grid platform distributed computation
boinc desktop grid platform distributed computation
- 2022-04-14 21:47:37下载
- 积分：1
