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OMAP

OMAP的相关文献在1998年到2022年内共计144篇,主要集中在无线电电子学、电信技术、自动化技术、计算机技术、工业经济 等领域,其中期刊论文107篇、会议论文3篇、专利文献34篇;相关期刊75种,包括山东国土资源、仪表技术与传感器、电子与电脑等; 相关会议2种,包括中国通信学会第五届学术年会、第二十届中国(天津)'2006IT、网络、信息技术、电子、仪器仪表创新学术会议等;OMAP的相关文献由239位作者贡献,包括刘洋、陈瑶、吴蒙等。

OMAP—发文量

期刊论文>

论文:107 占比:74.31%

会议论文>

论文:3 占比:2.08%

专利文献>

论文:34 占比:23.61%

总计:144篇

OMAP—发文趋势图

OMAP

-研究学者

  • 刘洋
  • 陈瑶
  • 吴蒙
  • 朱善安
  • 赵进创
  • 邵一川
  • 于训成
  • 任品毅
  • 俞春华
  • 兰艳亭
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 陈学彬
    • 摘要: 结合河湖和水利工程管理范围划界工程实例,探讨了利用Omap和ArcGIS软件进行辅助作业,简化了作业流程,提高了工作的质量和效率,确认Omap和ArcGIS软件在河湖和水利工程管理范围划界工作中的可行性和实用性.
    • 郭敏; 庄信武; 王向东; 张杰
    • 摘要: 以手持式频谱仪为背景,设计一种基于软件无线电架构的、高集成度的、低功耗的手持频谱测量平台;该平台采用Xilinx公司28nm高性能功耗比Spartan 7序列的FPGA芯片XC7S100和TI公司集DSP和ARM为一体的双核CPU芯片OMAP-L138为主处理器,选用低功耗、高宽温、自身发亮的AMOLED屏为人机交互模块,通过EMIFA、UPP等外部拓展接口及强大的数据处理能力,结合时钟、电源模块,形成了并行与浮点计算优势互补的手持式数字信号处理系统,解决了频谱仪中频、零频信号的并行处理及复杂的浮点模型解算问题,该系统能具有体积小、精度高、高性能功耗比等特点,在户外等测试现场具有广泛的运用前景.%Based on the hand-held spectrum analyzer,a highly integrated,low-power handheld spectrum measurement platform based on software radio architecture was designed.The platform used the Xilinx Inc.28nm high-performance power consumption-the Spartan 7 sequence FPGA chip XC7S100,and the TI Inc.DSP and ARM dual-core CPU chip OMAP-L138 as the main processor.And low power consumption,high temperature,own bright AMOLED screen for the human-computer interaction module.Combined with clock,power module,the EMIF,UPP external bus expansion interface and powerful data processing capabilities,parallel and floating-point computing complementary digital signal processing system was presented,which could solve the spectrum analyzer IF,zero-frequency signal processing and complex floating point model solution problem.The system can have the characteristics of small volume,high precision and high performance power consumption ratio,and wide application prospect in outdoor and other test sites.
    • 孙正元; 栾新; 李国栋; 彭东立; 贾鹏飞; 宋大雷; 周丽芹
    • 摘要: 海流测量是海洋科学研究的重要方向,文中设计了一种利用宽带信号测流的声学多普勒海流计,给出了基于STM32与OMAP(开放式多媒体应用平台)双机通信的海流计设计方案,阐明了双机通信的通信协议及软件实现方法,采用两级时变增益电路解决了回波信号动态变化大的问题.在千岛湖区采取船载DGPS走航方式完成了海流计的精度及性能测试,试验表明研发的海流计的测流精度优于 ±1%测量值,且具有较好的稳定性.%Ocean current plays a crucial role in the marine scientific research , an acoustics doppler current meter using broadband signal was developed .This paper showed the design of Doppler current meter based on communication between STM 32 with OMAP and the two-machine communication protocol and the implementation of software .A two-stage TVG ( time-variant gain) amplifier circuit was designed to solve the problem that the echo signal may become large dynamic range .The experiment shows the precision is better than ±1%of reading and good stability in Qian Dao Lake by ship-mounted DGPS method to finish current meter precise and performance test .
    • 宫晓梅
    • 摘要: 本文主要研究MPEG-4算法进行移植、测试、优化,分别针对PC机、OMAP3530 单ARM核工作、OMAP3530双核协同工作等状态下视频处理性能进行测评。
    • 于训成; 宋娟娟; 张秀文; 王洪军
    • 摘要: 土地质量地球化学调查评价的调查精度较高,GPS主要应用于地球化学测网布设、土壤采样点的定位及其他生态地球化学样品的采集定位.野外工作前必须通过大地测量三角点实测数据进行GPS手持机三参数校正,在GPS中置数,校正参数满足精度要求之后方可进入野外采样阶段,因此,正确的参数设置是使用GPS的关键.利用omap结合1∶5万地形图实现了室内快速自动化校正三参数,精度高,误差小于3m.
    • 于训成; 宋娟娟; 张秀文; 王洪军
    • 摘要: 以往进行地球化学样品采集时,通常用的方法有2种:一是使用GPS手持机结合地形图的方法进行野外定点取样;二是利用"掌上机"移动终端进行野外定点采集.在此,介绍一种使用智能手机进行样品采集的方法——借助omap手机客户端下载Google Earth影像地图作为工作底图,利用GPS参数进行偏差校正后,将设计点位和方里网导入该软件内,即可同车载导航仪一样,进行导航定点采样.该方法简单有效,不再依赖地形图,提高了野外找点效率,定点误差小于3m,便于推广应用.
    • 陈乐; 吴蒙
    • 摘要: 随着人们生活水平的逐渐提高,人们对安全越来越重视,视频监控在很多领域逐渐普及。在OMAP平台上运用Gstreamer多媒体框架,实现了一个集视频采集、视频编码和视频传输的C/S结构网络视频监控系统。视频采集基于V4L2应用程序接口,视频编码采用H.264编码,网络传输承载于RTP协议族之上。系统包含服务端和客户端,基于插件的系统结构使该系统具有易维护、易扩展的特点。在OMAP平台上的测试结果表明,该系统整体延时在1 s以下,满足了实时监控需求,可应用于实际生产。%With the gradual improvement of people’ s living standards,people have paid more attention to security,and video surveillance is gradually spread around many fields. In this paper,a network video surveillance system with C/S structure including video capture,en-coding and transmission is developed under OMAP platform based on Gstreamer multimedia framework. Video capture is based on V4L2 application program interface,video encoding is using H. 264 coding standard,and network transmission is based on the RTP family. This system includes server and client,and it’ s easy to maintain and expand because of the plugin-based structure. Test results on the OMAP platform show that the overall system delay of about 1 seconds or less,can meet the needs of real-time monitoring,which can be used in actual production.
    • 贾措
    • 摘要: 本文主要阐述与上述车联网系统配套的车载车联网终端的硬件设计,主要包括处理器的选择、 硬件平台的设计及外围电路模块的设计.在综合权衡了CPU的速度、 尺寸、 耗电量、 成本等等诸多因素以后,德州仪器(Texas Instruments)的ARM A9双核心系列CPUOMAP4460成为了本终端CPU的首选.本文将选用基于ARM核心的TI OMAP平台,阐述一个车载车联网终端硬件设计.
    • 蔡政; 彭一忠
    • 摘要: This project introduces a FastICA algorithm based on maximum of negative entropy,which searches the direction according to the maximum of negative entropy and this project achieve to extract independent source.We increase the speed to realize the algorithm on OMAP through several methods including rationally allocating hardware resources and optimizing software code.The result shows that this is a very valuable blind source separation method.%本项目介绍了一种基于负熵最大的FastICA算法,它以负熵最大作为一个搜寻方向,实现顺序地提取独立源。并且通过合理分配硬件资源,优化软件代码,提高了该算法在omap上的实现速度。结果表明,这是一种非常有价值的盲源分离新方法。
    • 王义君; 宫玉琳; 焦勇; 文大化
    • 摘要: 目前铣削去重平衡机电气测量系统是由微控制器和外围器件级联而成,集成度低、信号处理算法单一、测量误差大,对实现智能铣削有很大的限制.基于此,提出了基于嵌入式OMAP的自动铣削去重平衡机电气测量系统的实现方法.首先,通过OMAP双核架构中的ARM子系统完成对平衡机电气测量系统的控制功能,DSP子系统实现数字信号处理和不平衡量的解算;其次设计实现了基于谐波小波包的数字带通跟踪滤波器;最后利用谐波小波包在频域对信号进行无限细分的特性来提取任意一段微弱信号的特征.仿真及测试结果表明,该系统有效抑制了近频信号干扰,提高了信噪比,并对初始不平衡信号特征实现有效还原.%Electrical measurement system in milling balance machine currently consists of microcontroller and peripheral devices. The structure has the problems which include low integration, single signal processing algorithms and great measurement error. Therefore, electrical measurement system in milling balance machine based on embedded optimiza-tion is presented in the paper. Firstly,the device control electrical measuring system by ARM subsystem of OMAP du-al-core architecture, and DSP subsystem realizes digital signal processing and unbalance computing. Secondly, the sys-tem implement digital band-pass tracking filter based on harmonic wavelet packet. Thirdly,the system extracts any pe-riod of weak signal characteristics using the unlimited segmentation features harmonic for wavelet packet signal in the frequency domain. Simulation and test results show that the system effectively inhibits nearly frequency signal interfer-ence,improves signal to noise ratio,and reduces the initial imbalance signal characteristics.
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