查询词典 wireless

The method of obtaining time delay parameters with the reverse access channel is discussed. The modified algorithms of classic correlation methods of TOA estimation are proposed. Noncoherently combining algorithm and group coherent combining algorithm are given. They decrease the computational complexity and are more suitable for implementations in practical systems. The leading edge detection algorithm is proposed to mitigate the effect of multipath in TOA estimation. Then the secondary search method is proposed, it can solve the matching issue of PN code in CDMA systems. The location algorithms based on LS are discussed; include circular trilateration with LS, hyperbolic trilateration with reference differencing, hyperbolic trilateration with sequential differencing and circular trilateration with TOA differences. The design and implementation of wireless location system based on TOA/TDOA in CDMA2000 systems are given. The location process is discussed, and the hardware and software implementation of TOA estimation are given. Finally, the wireless location system which uses TOA estimation and LS location algorithms above is tested in the real environment.

文中讨论了采用CDMA2000反向链路中的接入信道来获取时延的方法和过程；对TOA估计的传统的相关法进行了改进，提出了非相干合并相关法和分组合并相关法，减少了基于相关的时延估计算法的运算量，提高了算法的实用性，对算法进行了仿真和性能分析；采用边缘检测技术有效减少了TOA参数估计中的多径干扰，提高了时延参数估计的准确度；提出了一种TOA估计的二次搜索法，解决了多个定位测量单元同时进行TOA估计的PN码匹配问题，进一步了提高TOA估计的精度；在采用时延值的定位算法中引入了基于LS的圆周法、基于参考差的双曲线法、基于相邻差的双曲线法和基于TDOA的圆周法，讨论了各算法的应用条件，进行了算法性能的仿真分析；给出了CDMA2000系统中的TOA/TDOA的无线定位的系统方案和实现流程，并对TOA值估计算法进行了软硬件实现，还对采用TOA估计算法、LS定位算法和定位系统设计方案实现的定位系统的进行了现场定位性能测试。

From my company in November 2001 at the original foundation of a wireless public address system on the introduction of multi-media, operates mainly in the microphone, amplifier, speakers, sound reinforcement system frequency shift, are the sea or NT agent, BOKE audio Shaanxi total generation, at the same time We are in the wireless public address system on the basis of the introduction of multimedia, digital language lab systems engineering project.

我公司从 2001 年 11 月在原有无线扩音系统的基础上推出多媒体，主要经营话筒，功放，音箱，移频扩声系统，是海之升西北地区总代理，BOKE音响陕西总代，同时我们在无线扩音系统的基础上推出多媒体，数字化语音室工程系统工程。

This paper deals with the exploiture of a wireless image monitoring system based on GPRS, it shows us the wonderful life that wireless net bring to us.

本文将以基于GPRS的无线图像监控系统的开发为例，介绍无线网络给我们带来的多彩生活。

The main products include chip card/coin payphones, CDMA/GSM wireless terminals, CDMA wireless POS, WLAN system, door phone system, multimedia terminals, network monitoring system, etc.

具备核心竞争力的系列产品包括：IC卡/投币公用电话系列、CDMA/GSM无线公话系统、CDMA无线POS、宽带无线接入系统、智能楼宇对讲系统、多媒体自助信息终端、网络监控系统等系列产品。

It is CDMA of ／ of system of geographical information of fixed position of satellite of GPS whole world, GIS, GPRS the unifinication system of wireless communication technology and Internet technology, also be home over-distance is apart from between car of passenger transport of the first implementation and fixed target and management center forever broadband real time is online the super intelligence that with real time wireless image transmits runs a system.

它是GPS全球卫星定位、GIS地理信息系统、GPRS／CDMA无线通信技术和Internet技术的一体化系统，也是国内第一个实现客运车辆及固定目标与治理中心之间超远距离永远宽带实时在线和实时无线图像传输的超级智能治理系统。

Wireless ad hoc network is a temporary multi-hop self-organizing system composed of a group of nodes with wireless transceivers.

无线自组网是由一组带有无线收发装置的节点组成的一个临时性多跳自治系统。

Find more on wireless and cellular subjects at Alta Global Wireless .

找到更多关于无线、阿尔塔全球无线蜂窝科目。

Iona is one of the first colleges to have the wireless internet on campus, so you can login on the Internet everywhere on campus as long as you have a laptop supporting wireless internet.

一切都是由你自己做安排，但是如果你为选择专业，专业课而感到迷惑，你可以拥有你自己的专业顾问或者你可以选择与系主任谈一谈。

The corporation intel presented thewireless net adapter Of next-Gen Wireless- N (previously also known to us under names Intel 4965AGN and Kedron), which is further development of the producer family components for organizing the work of users in wireless networks, which makepart fromtechnology intel centrino duo mobile pc.

英特尔公司颁发的无线网络适配器下根无线氮(以前的名字也叫我们在英特尔4965agn而kedron)这是进一步发展家庭组成的生产者组织工作无线网络用户，使一部分来自英特尔迅驰技术移动电脑铎。

If you sign up with us right now, you will receive a free wireless phone as a gift.

如果你们现在就签合同，我们会免费送你一个无绳电话作礼物。

This paper designs the communication system of radio telescope FAST.

针对500m口径球面射电望远镜FAST分布式控制系统的特点完成了其通信系统的设计。

Political sheep's step-by-step a large number of fossils unearthed in the county soil Ma Ali after rural village in the middle of sallow pelitic siltstone.

步氏和政羊化石大量出土于广河县阿力麻土乡后山村，产于灰黄色泥质粉砂岩中。