水声
- underwater sound;sound of water
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大功率集成运算放大器在水声发射机中的应用
Application of High Power Operation Amplifier in Underwater Sound Transmitter
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水声传播中射线声学方法的应用
The application of the ray method in underwater sound propagation
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那种新奇的,田野上的喧声,那种庄稼汉打着的唿哨,那种水禽的溅水声,他觉得每一样都是令人销魂的。
The quaint field noises , the yokels'whistling , and the splash of water-fowl , each seemed to him enchanted .
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Pattern时延差编码四信道水声通信技术研究
Study of 4-channel underwater acoustic communication based on pattern time delay shift coding system
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一种基于单片机和DSP的水声引信接收平台设计
A Study on Receiving Platform of Acoustic Fuze Based on MCU and DSP
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基于水声信道的级联TCM编码技术研究
Simulation Research of The Serial Concatenated TCM Coding Method Based on Underwater Communication Channel
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一种多径衰落水声MIMO信道自适应均衡仿真研究
Simulation of MIMO Adaptive Equalization for Multipath Underwater Acoustic Channels
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单声线水声MIMO信道容量的研究
Study of the underwater acoustic MIMO capacity for single sound path channel
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Aloha-LPD:一种用于水声通信网的MAC协议
Aloha-LPD : a MAC protocol for underwater acoustic networks
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低复杂度均衡在水声OFDM通信中的应用
Low-complexity equalization to OFDM applied in underwateracoustic communications
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水声跳频通信系统中Turbo性能研究
Performance of Turbo Code in Frequency Hopping Communication Systems
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Bark子波变换的改进及其在水声目标分类中的应用
Improvement of Bark Wavelet Transform and Its Application in Underwater Acoustic Targets Classification
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AGC电路在水声信号接收机中的应用
The Application of AGC to Hydroacoustic Receiver
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用单片机实现水声遥控指令的脉冲周期编码(PTC)信号
Make Pulse Time Code Signal of Underwater Acoustic Remote-Controlled Command by Using Single Board Computer
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基于DIS的水声对抗声学仿真系统设计
Design of DIS-based Underwater Acoustic Countermeasure Simulation System
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他说,专家们综合使用DNA分析、视频、水声及手机等技术定位各种海洋生物所在海域。
He said experts have used a combination of DNA analysis and video , acoustic and cell phone technology to figure out whats living where , in the sea .
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LMS算法和RLS算法在水声信道通信系统中应用的比较
Comparison of LMS Algorithm and RLS Algorithm Using in the Underwater Acoustic Communication System
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一种并行传输的水声adhoc网络多址接入(PTMA)协议
A Parallel Transmission Multiple Access ( PTMA ) Protocol for Underwater Acoustic Ad hoc Networks
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AUV波阵面水声精确定位
Accurate AUV underwater positioning by wave front intersection
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本论文初步构造了一个水声传真通信系统。完成了PC传真软件的设计和水声传真Modem的设计。
This paper constructs an underwater acoustic Fax communication system and implements the design of PC Fax software and the design of underwater acoustic Fax modem .
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混沌调频M-ary方式在远程水声通信中的应用
Long-range underwater acoustic communication based on Chaotic-FM M-ary mode
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通过对采用不同组合级连码的性能仿真及分析可得出:RS码和卷积码的级连是用于水声通信的性能很好的串行级连码。
The principle and performance and arithmetic of coding and decoding of RS code and convolutional code and serial RS concatenated convolutional code are studied .
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对虚拟仪器技术的含义、优势、发展概况及应用程度等作了介绍,并基于B&KPULSE系统,对虚拟仪器技术在水声材料隔声测试中的应用开展了实验研究。
In this paper , virtual instrument technology is introduced simply . Based on B & K PULSE system , sound insulation measurement for underwater acoustical material by virtual instrument technology is investigated detailedly .
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本文就针对这个问题深入研究了OFDM技术中的频率同步和信道估计问题,建立了基于OFDM技术的水声通信系统,并对本文提到的技术进行了仿真,结果表明系统有效,方法可行。
So in this paper , frequency synchronization and channel estimation on OFDM is investigated . And an underwater acoustic communication system based on OFDM is designed and simulated .
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讨论了基于水声资料库、DirectSound技术、实时3D效果控制,实现音频信号的合成和回放的方法。
By creating the underwater acoustical signal database and using DirectSound technology , the real-time audio signal is synthesized , and real-time three-dimensional sound effect is implemented .
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CDMA和OFDM技术的结合继承了两种技术的优点,在高速的数据传输中具有很大的优势,成为了水声通信研究中的热点。
The combination of CDMA and OFDM inherits the advantages of the two technologies in high-speed data transmission is of great advantage , and it has become the hot spot in underwater communication studies .
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水声成像系统Doily阵列的设计研究
The study of Doily array Design for Underwater Acoustic Imagine System
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在约定一定的水声对抗系统作战模式的基础上,结合简化的水声对抗作战过程,给出了采用DIS(分布式交互式仿真)技术实现水声对抗系统作战效能仿真的框架和思路。
Assuming the simple course of acoustic antagonism , this paper also presents the frame and thought of operational effectiveness of acoustic antagonism system with the technology of DIS .
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因此现在很多研究机构也致力于水声Modem的开发,目的是希望在实际的水声通信中检验水声算法,提高水声通信质量。
So now a lot of research institutions are also committed to the development of acoustic Modem , in order to inspect acoustic algorithm in actual acoustic communications and to improve the quality of underwater acoustic communication .
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方法以亥姆霍兹(Helmholtz)积分为基础,由近场测量数据推算大尺寸水声换能器的远场特性。
In accordance with the method based on Helmholtz integration , the far-field characteristics of underwater sound transducers with large dimension can be calculated from near-field data measured .