1) shallow acoustic communication
浅水通信
1.
Based on shallow acoustic communication channel model,we establish a multi-paths model of linear frequency modulation(LFM) with cyclic-correlation characteristics,and calculate the theoretical value of intrinsic sound ray using Runge-Kutta method,and detect the result with the copy correlation testing method.
为了对比检测效果,本文基于循环相关检测方法,采用了一种估计循环频率特征的浅水信道多径分析方法,该方法通过在频域估计循环频率的峰数和位置,可以在时域内准确估算浅水通信的多径数和相应的时延,与拷贝相关检测方法相比可以提高检测性能。
2) shallow water acoustic communication network
浅水水声通信网络
3) underwater communication
水下通信
1.
Pilot based channel estimation for OFDM underwater communication
基于导频的OFDM水下通信信道估计
2.
In order to decrease the major influences of time-varying multipath and fading in underwater channels and increase the transmit distance and reliability of an underwater communications system,research and analysis were done on an adaptive spatio-temporal decision feedback equalizer(DFE) with an embedded digital-phase-locked-loop(DPLL) in a high-speed underwater digital communications system.
为了克服水下信道严重的时变多途干扰和衰落对水下通信的影响,提高水下通信的作用距离和可靠性,在水下高速数字通信中对内嵌数字锁相环(digital phase-locked loop,DPLL)的自适应空时DFE(判决反馈均衡器)进行了研究和分析,给出了这种自适应空时判决反馈均衡器中各种算法和参数条件下的仿真结果。
3.
Underwater communication ad-hoc network is important matter and research aspect in underwater communication and key technique in underwater naval ships forming into columns.
随着海军和海防的发展，舰艇编队已成为现代海战中执行复杂任务的重要形式，点对点的小范围通信难以满足水下多节点的通信需求，迫切需要研究和建立水下通信自组织网以满足海军现代化建设的需要。
4) underwater acoustic communication
水声通信
1.
Research on phase compensation in OFDM underwater acoustic communication systems;
OFDM水声通信系统中一种相位补偿方法
2.
The application of TD-MFM in underwater acoustic communication;
时频编码在水声通信中的应用
3.
M-ary chaotic spread spectrum Pattern time delay shift coding scheme for multichannel underwater acoustic communication;
M元混沌扩频多通道Pattern时延差编码水声通信
5) UWA communication
水声通信
1.
UWA communications suffer from interferences due to multi-path,ambient noise and Doppler shift.
水声信道是一个极其复杂的时变-空变-频变信道,因而进行水声通信,必须克服时变多途干扰等困难。
2.
However,serious multipath fading and Doppler frequency shift lead to high bit-error-rate of UWA communication.
对于水声通信中严重的多途衰落和多普勒频移现象,采用多径分离再合并技术和实时频率跟踪技术有效地解决了以上问题,大大降低了系统的误码率。
3.
Narrow channel band,severe multipath interferences and severe channel attenuation have demonstrated the great complexities and difficulties of high-speed UWA communications.
信道通带窄、多途干扰强、衰落严重是水声通信高速可靠传输信息的主要障碍。
6) underwater communication
水声通信
1.
Chaotic frequency hopping in underwater communication;
水声通信中的混沌跳频技术研究
2.
Development of underwater communication system based on vector sensor;
基于矢量传感器的水声通信系统研制
3.
Research on Underwater Communication Channel Characteristics Measurement;
水声通信信道特性测量研究
补充资料：北京邦丰网络通信技术有限公司
北京邦丰网络通信技术有限公司是专业从事网络多媒体和网络通信软件自主研发和服务的高新技术企业。公司推出的视频服务系统系列产品以领先的技术、卓越的性能、完善的管理功能迅速赢得广大用户的认同和信赖，用户遍及教育、政府、企事业、金融、电信、广电、军队等各行业，并以稳定、先进和创新的技术不断挑战和超越国际领先技术水平
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条