Detecting sonar pulse transmitted by an active sonar, it is called "sonar pulse detection".
声呐脉冲侦察是利用目标主动声呐发射的脉冲信号来探测目标的技术。
The main task of it is to measure the working parameter of active sonar and track the target.
其主要任务是侦察目标主动声呐的工作参数，对目标实施跟踪。
This dissertation studies and analyses active sonar reverberation model and anti-reverberation signal processing.
本论文研究并分析了主动声呐混响模型以及抗混响信号处理。
This method is greatly increased in the high-intensity direct wave interference under active sonar echo extraction accuracy.
该方法极大地提高了在高强度直达波干扰下主动声呐提取目标回波的精度。
In the littoral environment, the bottom scattering is one of the most important factors for limiting the performance of active sonar.
在浅海环境中，海底散射是影响主动声纳性能的最主要因素之一。
The U. S. Navy plans to deploy a new submarine detection system, known as Low Frequency Active Sonar (LFA), throughout 80% of the world's oceans.
在世界的 80% 的大海各处，美国海军计划部署一个新的海中发现系统，即是低的频率活跃的声纳 （LFA） 。
For the active sonar operating in the reverberation-limited environment, reverberation is one of main factors restricting the performance exertion.
就工作在混响限制区域的主动声纳而言，混响成为限制声纳性能发挥的主要因素之一。
In this thesis, the signal waveforms of an active sonar in shallow waters are studied, in particular, the structure of wideband Doppler sensitive signals are emphasized.
浅海环境下主动声纳具体信号形式尤其是宽带多卜勒敏感信号波形结构特点分析与检测技术是本论文研究的主要内容。
This paper analysised the possibility of using the adaptive line spectrum enhancer with LMS to improve the detection range of active sonar according to its characteristics.
本文针对主动声纳的特点，分析了利用LMS算法的自适应线谱增强器提高主动声纳作用距离的可行性。
With analyzing the detecting procedure of Low-frequency active sonar and emulating about it, the Optimum Detection frequency Band of Low-frequency active sonar were researched.
本文通过对低频主动声纳的主动声纳方程的分析与声学探测过程的仿真，初步研究了低频主动声纳在不同距离上的最优探测频率问题。
On the base of the active sonar theory, This thesis provide active ultrasonic detecting system that application in low-speed moving object of short-range in shallow sea surroundings.
论文文摘本论文基于主动声纳的基本原理，提出适用于浅海环境水下近程低速目标主动声探测系统。
Recently in the analysis of active sonar signal detecting performance, the statistical model of reverberation envelope is assumed to be in accord with Rayleigh-distribution in computer simulation.
主动声纳信号检测性能的分析上，目前在计算机仿真中一般假定混响包络的统计特性符合瑞利分布模型。
The study on the characteristics of scattering from an underwater target is only the base that the active sonar works on but also the source which new ideas, new theories and new methods come from.
水下目标声散射特性研究是主动声纳赖以工作的基础，也是主动探测产生新思想、新原理、新方法的基础。
On the base of hardware approach, to discuss all the theory involve in active detecting sonar system, including the selection of signal waveform, digital signal sampling, digital signal processing.
以硬件为基础，对所涉及到的理论都作论述，包括探测声纳的信号波形选择，数字信号采样、处理原理与方法。
To discuss the active detecting sonar system's composition and operational principle.
论述主动探测声纳的组成与工作原理。
Echolocation, the active use of sonar along with special morphological and physiological adaptations, allows bats to "see" the world with sound.
主动应用声纳并与特殊形态学和生理学调节结合在一起的回声定位，使蝙蝠能用声音来“看”这个世界。
Towed line array is recently a very active topic in the field of sonar signal processing.
拖曳式线列阵是近来声呐信号处理领域中非常活跃的课题。
Thus research has been going on for some time in the area of low frequency active (LFA) towed array sonar.
如此研究一直在低频率活跃的 （LFA）被拖的排列声纳的区域中继续有一些时间之久。
The orientation of the sonar beam was considered in the active dipping sonar sensor model to complete the target movement analysis such as differentiating orientation.
在主动式吊声模型中，考虑声纳的波束方向，便于对目标进行定向等运动分析。
The workstation will remain active as long as the user is present, but will securely lock when the user physically steps away, usually one meter or less from the sonar detector.
只要用户是目前该工作站将保持活跃，但将安全锁，当用户物理几步之遥，通常一米，从声纳探测器。
The workstation will remain active as long as the user is present, but will securely lock when the user physically steps away, usually one meter or less from the sonar detector.
只要用户是目前该工作站将保持活跃，但将安全锁，当用户物理几步之遥，通常一米，从声纳探测器。
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