So, the suppression method of applying non-linear transform on strong acoustic interference was proposed based on the characteristics of steady velocity.
基于声波具有非常稳定的传播速度这一特点,提出了一种利用非线性变换手段压制强声波干扰的方法。
To induce inter symbol interference which is due to multipath transmit effect in the water acoustic communication system, linear equalization can be adopted in the system.
为了减小水声通信系统中存在的由于多径传播效应引起的符号间干扰,可在系统中使用线性均衡器。
Time variant multipath propagation in acoustic channel causes serious intersymbol interference (ISI), which makes high speed data transmission over acoustic channel very difficult.
但水声信道的时变多途效应造成接收数据严重的码间干扰(I S I),使得高速水声通讯的实现十分困难。
As oceanic reverberation is the main interference to acoustic object detection, suppressing the chaos by signal processing is an important task.
海洋混响是水声信号目标检测的主要干扰之一,克服混响干扰一直是水声信号处理的一个重要课题。
Based on theoretical analysis and experimental tests, the characteristics of close to ground air currents and their interference on acoustic fuzes are studied.
从理论及测试两方面分析了近地层风的特点及对声引信的干扰。
A phase interference method, for measurement of the relative change of surface acoustic wave velocities, is presented.
本文提出了一种相位干涉法。用来测量表面声波速度的相对变化。
We study the mechanism of acoustic normal mode coupling from the aspects of ray-mode transformation and interference structures of acoustic waveguide in the ocean.
结合广义射线简正波转换、声场强度干涉结构研究了简正波耦合机理。
Based on principals of interference of acoustic waves and simplified digital delay-line, comb filter effect induced by superposition of reflections from steps is presented.
从声波干涉的基本原理出发,通过数字延时线的简化分析,说明了多级台阶反射声的叠加对声波频率产生的梳状滤波效果。
Underwater acoustic channel is a time-space-frequency variant channel, having a character for narrow bandwidth, high ambient noise level and strong interference of multipath.
而由此构成的水声信道是一个空间与频率响应随机快速变化的传输信道,存在窄带、高噪及强多途干扰。
Brillouin enhanced four wave mixing, whose interference beat frequency drives an acoustic field, can improve the SBS phase conjugation fidelity.
采用四波混频加强SBS的方法,其相干拍频驱动声子场,能提高SBS相位共轭保真度。
Brillouin enhanced four wave mixing, whose interference beat frequency drives an acoustic field, can improve the SBS phase conjugation fidelity.
采用四波混频加强SBS的方法,其相干拍频驱动声子场,能提高SBS相位共轭保真度。
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