Advanced Digital Techniques and Tendencies in the Development of Modem Digital Satellite Broadcasting

The fundamental aspects of digital broadcasting are its service flexibility and power savings, which make all-digital satellite broadcasting a viable and economic propositon compared with analog broadcasting. Tendencies in the development of digital television broadcasting are: (1) Stereophonic or two-language sound transmission with television in existing analog TV system, (2) Digital direct satellite broadcasting (D-DBS); (3)Digital high definition television (HDTV) Broadcasting.

Research on the Development Direction of Traditional Broadcast Television Movie Media under Background of New Media and Internet

In this paper, we conduct research on the development direction of traditional broadcast television movie media under background of new media and lnternet. In recent years, with the computer technology network communication technology and constant innovation rapid development of digital technology, digital new media got rapid development. Under the digital new media industry has gradually become the core industry of 21 st century knowledge economy and the new economic growth point. But there are still some problems in the digital of new media development. How to treat these problems to take effective countermeasures is vital to healthy development of the new media. Our research proposes corresponding guidance and the perspective on the development orientation which acts as the paradigm and the guideline.

Machine-Learning Based Packet Switching Method for Providing Stable High-Quality Video Streaming in Multi-Stream Transmission

Broadcasting gateway equipment generally uses a method of simply switching to a spare input stream when a failure occurs in a main input stream.However,when the transmission environment is unstable,problems such as reduction in the lifespan of equipment due to frequent switching and interruption,delay,and stoppage of services may occur.Therefore,applying a machine learning(ML)method,which is possible to automatically judge and classify network-related service anomaly,and switch multi-input signals without dropping or changing signals by predicting or quickly determining the time of error occurrence for smooth stream switching when there are problems such as transmission errors,is required.In this paper,we propose an intelligent packet switching method based on the ML method of classification,which is one of the supervised learning methods,that presents the risk level of abnormal multi-stream occurring in broadcasting gateway equipment based on data.Furthermore,we subdivide the risk levels obtained from classification techniques into probabilities and then derive vectorized representative values for each attribute value of the collected input data and continuously update them.The obtained reference vector value is used for switching judgment through the cosine similarity value between input data obtained when a dangerous situation occurs.In the broadcasting gateway equipment to which the proposed method is applied,it is possible to perform more stable and smarter switching than before by solving problems of reliability and broadcasting accidents of the equipment and can maintain stable video streaming as well.

High Robust Broadcasting over DTMB-A with Low-rate LDPC Codes

As the 2nd generation digital terrestrial television broadcasting(DTTB)standard,digital terrestrial/television multimedia broadcasting-advanced(DTMB-A)can provide higher spectrum efficiency and transmission reliability by adopting flexible frame structure and advanced forward error correction coding compared with the 1 st generation DTTB systems.In order to increase the flexibility and robustness of the DTTB network,the frequency reuse scheme of factor one(reuse-1)is proposed,where the same RF channel is used by different stations covering the adjacent service areas.However,it demands a very low carrier-tonoise ratio(C/N)threshold below 0 dB at the DTTB physical layer.In this paper,a robust broadcasting technique is proposed based on DTMB-A with newly designed low-rate low density parity check(LDPC)codes.By adopting quasi-cyclic(QC)Raptor-like structure and progressive lifting method,the high performance low-rate LDPC codes are designed supporting multiple code lengths.Both density-evolution analyses and laboratory measurements demonstrate that DTMB-A with low-rate coding can complete the demodulation reliably with the C/N threshold below0 d B,which is one important necessary condition to support frequency reuse-1 scheme.

Empirical Studies on Topographical Influences on Crbc/Akbc Terrestrial Television Stations’ Signals in Akpabuyo Local Council Area, Nigeria

Dissemination of information to citizens is a relevant component of governance. Expectedly, viewers tuned to broadcast stations within and outside their localities, expecting their receivers to faithfully reproduce the exact features of the transmitted signal. Akpabuyo is a dense forest zone near the creeks leading to the Atlantic ocean in Cross River State, Nigeria. The location has distinct environmental characteristics that made Akpabuyo Area Council, a challenging location to propagate electromagnetic waves;and therefore recipe for further investigation. Radio frequency analyzer, with 24 channels spectrum, ranging between 46 - 870 MHz (model: RO.VE.R.-“DLM3-T”) was deployed to capture signals from terrestrial television stations (TV). CATV measured signal of TV stations in dB, dBμV and dBmV. Its frequency ranged from 40 - 860 MHz;while varying from channel 1 to channel 69. Measurements taken from Akpabuyo L.G.A. showed the following results: the signal strength received from VHF Channel 11 ranged from 20 dBμV to 49 dBμV. From recorded empirical statistics from the study, 50% of the area received signal from this station above 30 dBμV, while other regions had signals below this value;representing the fringe zone of the frequency. The results obtained from the study relatively showed acceptance with Egli’s model. The study recorded a steady fluctuation between 17 dBμV and 19 dBμV from both propagating stations. However, Channel 27 signal at 519 MHz, had very weak signal coverage in Akpabuyo Local Government Area;with signal strength dropped to as low as 13 dB in many parts of the rural area. The study discovered that the state’s broadcasting stations, both at UHF and VHF channels did not transmit successfully across this densely forest (rural) location. Remedial measures such as installing Repeater stations at different locations as signal booster were recommended.

From Raccontami to I Medici, From Karol to Luisa Spagnoli： Narrative Formats and Collective Memory in Italian Fiction

This paper rethinks critically the Italian serial production of fiction, in recent years, placing it in relation to the dynamics of collective memory. The analysis starts from two Italian fiction： Raccontami, the history of a family returns the great changes of the 60s＇; I Medici dedicated to the biography of the great Florentine Renaissance banker family, exemplified by similar international productions （including the Borgia） and subject to strong promotion by Rai 1. Around these two lines of address is also the analysis of some miniseries among these biopics dedicated to figures of the national imagination such as pontiffs, doctors, partisans, entrepreneurs. If the twentieth century was defined as the ＂century of testimony＂ this is also due to the massive and pervasive presence of media that are often at the center of the processes of transformation and transition of the public and cultural life of societies. Television, in particular, confirms itself as the real, symbolic and rhetorical place in which historical events unfold, to be, on some occasions, a substitute simulacrum. Fiction, as a form of popular narrative and reworking, is an intermediary and central element in the processes of building the social imagery and collective memory, responding to the need for a typical tale of every society.

人工智能技术在广播电视行业的应用研究

在智能媒介的浪潮中,广播电视行业正在经历一场前所未有的变革。人工智能、通信、物联网等尖端技术的融合,为广播电视行业注入新的活力。概述人工智能技术的概念,分析人工智能技术在广播电视行业中应用的技术优势,从内容生产、视听服务、数智应用、安全发展4个方面进行应用分析,提出人工智能在广播电视行业的发展方向。

智能语音识别技术在广播电视内容监测中的应用

随着科技的进步,智能语音识别技术在广播电视领域的应用日趋广泛。结合智能语音识别技术的工作原理,阐述其在广播电视内容监测中的应用优势和应用范围,具体体现在广播电视内容识别、广告监测和节目质量评估等方面,并指出应用过程所面临的挑战,为智能语音识别技术在广播电视内容监测领域的应用提供重要的参考和借鉴价值。

论中国研究阿多诺电视理论的几个关键词

阿多诺的文化研究理论体系在当代传媒研究中有着不可替代的贡献,即便是仅用几篇文章所传达出的电视理论,也有着不可忽视的价值。从目前对阿多诺电视批评已有的研究成果来看,显示出了一定的学理性与现实性,可总结出三个研究交叉点,概括为“模仿”“自律性”“人”三大关键词,借此可以展示中国学界已挖掘出的阿多诺电视理论价值。由于社会处于不断运动中,目前已有研究成果不足以覆盖当前社会传媒状况,例如原本电视媒介所含有的“金融经济”与“媒介经济”在当今时代呈现出更复杂的交错状况,可见结合新时代所带来的变化,对三个关键词进行更深入的剖析是有必要的。

无线广播电视传输覆盖维护措施分析

信息化时代下,广播电视行业在发展期间正面临着严峻的新的机遇和考验。为保证无线广播电视传输覆盖工程运行的稳定性与安全性,有必要对其维护措施进行深入研究。基于此,该文在了解无线广播电视传输覆盖技术概念与类型的基础上,对技术应用思路进行探究,以此为基础提出对应的维护和检修措施。也希望能为各广播电视发射台和转播站提供一定参考。

基于时延感知的广播电视信号频谱效率提升技术研究

近年来,5G的商用推动了广播电视行业的快速发展。5G通信网络以其低延迟、高速率的特性,加快了广播电视信号的传输,扩大了其覆盖范围,但同时也带来了对频谱资源利用的新挑战。针对该挑战,提出一种基于时延感知的频谱效率提升技术,并通过仿真实验验证了所提出技术的有效性。该技术旨在优化频谱资源的使用,进一步推动广播电视行业的发展。

5G与广播电视工程的融合应用

5G对广播电视事业的发展具有重要的推动作用,可以实现广播电视的高清晰、高效率、高互动、高融合的发展。介绍了5G的概念、技术和发展现状,分析5G在广播电视工程中的应用,包括超高清传输、新型服务和优化资源分配等,阐述这些应用的特点和优势,展示5G对广播电视事业的赋能和推动作用,为广播电视的创新和转型提供参考。

互联网时代下广播电视传输覆盖技术研究

随着互联网的崛起,广播电视行业的覆盖范围逐渐扩大,观众互动性增强,内容分发更加多样化。然而,互联网也带来了技术、版权和监管、市场竞争等方面的挑战。探讨了互联网时代下广播电视传输覆盖的实现方式,并深入分析了关键因素,以提升传输效率、确保内容安全,同时更精准地满足观众的需求。

信息化背景下的广播电视监测工作

广播电视监测结合物联网、云计算、大数据分析和人工智能等现代技术手段,能够确保高质量信号传输与接收,有效提升监测的准确性和效率。通过分析唐山地面数字电视信号监测项目,详细阐述信息化技术在广播电视监测工作中的关键作用和应用价值,为广播电视行业提供借鉴与参考,推动广播电视监测工作发展,为用户带来更优质的视听体验。

广播电视发射台站音视频信号监测系统功能的设计与实现

广播电视发射台站音视频信号监测系统是保证广播电视信号稳定传输的关键技术之一。首先分析广播电视发射台站音视频信号监测系统的功能,其次分析主要模块的设计与实现策略,旨在进一步提高广播电视发射台站音视频信号的监测能力。

数字时代广播电视无线发射技术的创新与发展

广播电视行业正经历前所未有的变革,无线发射技术作为广播电视传输的关键环节,其创新与发展尤为重要。探索数字时代广播电视无线发射技术的创新路径,成为行业发展的迫切需求。基于此,首先分析数字时代广播电视无线发射技术的演变历程,其次探讨数字时代广播电视无线发射技术的现状与挑战,最后分析数字时代广播电视无线发射技术的优化路径。

媒体融合环境下的广播电视节目制作技术应用

在媒体融合环境下,广播电视节目制作技术受到了很大程度的影响。广播电视节目制作过程中,相关人员需要充分了解媒体融合给广播电视节目制作技术带来的影响,在此基础上,科学应用广播电视节目制作技术。为此,分析媒体融合环境下广播电视节目制作技术的相关概念和内容,阐述媒体融合对广播电视节目制作技术的影响,探讨媒体融合环境下的广播电视节目制作技术应用。

广播电视信号传输系统的维护和管理

随着技术的发展,广播电视信号传输系统已成为现代社会信息传播的重要工具。对其进行有效的维护和管理,有助于保障传输稳定性,提升观众体验,预防潜在风险,降低运营成本。当前,广播电视信号传输系统的维护和管理面临着设备老化、维护人员技能更新不足、维护流程不标准化等问题。针对这些问题,文章提出一系列优化策略,以期提高广播电视信号传输系统的稳定性和维护效率。

数字音频压缩在广播电视传输中的效能分析

通过对比分析脉冲编码调制(Pulse Code Modulation,PCM)音频文件和使用HE-AAC压缩后的音频文件,结果显示HE-AAC压缩技术在数据量减少、兼容性提升以及网络延迟降低等方面均表现出显著的优势。HE-AAC压缩技术在广播电视传输中具有较好的应用前景,能够提高传输效率,为观众提供更丰富的音频选择。